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${ item.name }
Create branch ${ searchTerm }
from '670574eccc'
${ noResults }
Nicksxs.github.io/page/12/index.html

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<!DOCTYPE html><html lang="zh-CN"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width"><meta name="theme-color" content="#222"><meta name="generator" content="Hexo 6.1.0"><link rel="preconnect" href="https://fonts.googleapis.com" crossorigin><link rel="preconnect" href="https://cdn.jsdelivr.net" crossorigin><link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png"><link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png"><link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png"><link rel="mask-icon" href="/images/logo.svg" color="#222"><meta name="google-site-verification" content="2X6S9P7CAjXjVvw8YyQR8pCu-B0oEu7O9quLgxXuWyA"><meta name="baidu-site-verification" content="dV8JGNzi0c"><script>setTimeout(function(){var 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crossorigin="anonymous"><script class="next-config" data-name="main" type="application/json">{"hostname":"nicksxs.me","root":"/","images":"/images","scheme":"Pisces","darkmode":false,"version":"8.10.0","exturl":false,"sidebar":{"position":"left","display":"post","padding":18,"offset":12},"copycode":true,"bookmark":{"enable":false,"color":"#222","save":"auto"},"mediumzoom":false,"lazyload":true,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"stickytabs":false,"motion":{"enable":false,"async":false,"transition":{"post_block":"fadeIn","post_header":"fadeInDown","post_body":"fadeInDown","coll_header":"fadeInLeft","sidebar":"fadeInUp"}},"prism":false,"i18n":{"placeholder":"搜索...","empty":"没有找到任何搜索结果：${query}","hits_time":"找到 ${hits} 个搜索结果（用时 ${time} 毫秒）","hits":"找到 ${hits} 个搜索结果"},"path":"/search.xml","localsearch":{"enable":true,"trigger":"auto","top_n_per_article":1,"unescape":true,"preload":true}}</script><script src="https://cdn.jsdelivr.net/npm/hexo-theme-next@8.10.0/source/js/config.min.js"></script><meta name="description" content="learn from zero,技术博客，Nicksxs，史学森"><meta property="og:type" content="website"><meta property="og:title" content="Nicksxs&#39;s Blog"><meta property="og:url" content="https://nicksxs.me/page/12/index.html"><meta property="og:site_name" content="Nicksxs&#39;s Blog"><meta property="og:description" content="learn from zero,技术博客，Nicksxs，史学森"><meta property="og:locale" content="zh_CN"><meta property="article:author" content="Nicksxs"><meta property="article:tag" content="Nicksxs,史学森,米方方,米方方的男朋友,森哥"><meta name="twitter:card" content="summary"><link rel="canonical" href="https://nicksxs.me/page/12/"><script class="next-config" data-name="page" type="application/json">{"sidebar":"","isHome":true,"isPost":false,"lang":"zh-CN","comments":"","permalink":"","path":"page/12/index.html","title":""}</script><script class="next-config" data-name="calendar" type="application/json">""</script><title>Nicksxs's Blog</title><script async src="https://www.googletagmanager.com/gtag/js?id=UA-61358619-1"></script><script class="next-config" data-name="google_analytics" type="application/json">{"tracking_id":"UA-61358619-1","only_pageview":false}</script><script src="https://cdn.jsdelivr.net/npm/hexo-theme-next@8.10.0/source/js/third-party/analytics/google-analytics.min.js"></script><script src="https://cdn.jsdelivr.net/npm/hexo-theme-next@8.10.0/source/js/third-party/analytics/baidu-analytics.min.js"></script><script async src="https://hm.baidu.com/hm.js?20f33b3c0c0eff9b1522999c0015646d"></script><noscript><link rel="stylesheet" href="/css/noscript.css"></noscript><link rel="alternate" href="/atom.xml" title="Nicksxs's Blog" type="application/atom+xml"></head><body itemscope itemtype="http://schema.org/WebPage"><div class="headband"></div><main class="main"><header class="header" itemscope itemtype="http://schema.org/WPHeader"><div class="header-inner"><div class="site-brand-container"><div class="site-nav-toggle"><div class="toggle" aria-label="切换导航栏" role="button"><span class="toggle-line"></span> <span class="toggle-line"></span> <span class="toggle-line"></span></div></div><div class="site-meta"><a href="/" class="brand" rel="start"><i class="logo-line"></i><h1 class="site-title">Nicksxs's Blog</h1><i class="logo-line"></i></a><p class="site-subtitle" itemprop="description">What hurts more, the pain of hard work or the pain of regret?</p></div><div class="site-nav-right"><div class="toggle popup-trigger"><i class="fa fa-search fa-fw fa-lg"></i></div></div></div><nav class="site-nav"><ul class="main-menu menu"><li class="menu-item menu-item-home"><a href="/" rel="section"><i class="fa fa-home fa-fw"></i>首页</a></li><li class="menu-item menu-item-about"><a href="/about/" rel="section"><i class="fa fa-user fa-fw"></i>关于</a></li><li class="menu-item menu-item-tags"><a href="/tags/" rel="section"><i class="fa fa-tags fa-fw"></i>标签</a></li><li class="menu-item menu-item-categories"><a href="/categories/" rel="section"><i class="fa fa-th fa-fw"></i>分类</a></li><li class="menu-item menu-item-archives"><a href="/archives/" rel="section"><i class="fa fa-archive fa-fw"></i>归档</a></li><li class="menu-item menu-item-top"><a href="/top/" rel="section"><i class="fa fa-th fa-fw"></i>热度</a></li><li class="menu-item menu-item-sitemap"><a href="/sitemap.xml" rel="section"><i class="fa fa-sitemap fa-fw"></i>站点地图</a></li><li class="menu-item menu-item-commonweal"><a href="/404/" rel="section"><i class="fa fa-heartbeat fa-fw"></i>公益 404</a></li><li class="menu-item menu-item-search"><a role="button" class="popup-trigger"><i class="fa fa-search fa-fw"></i>搜索</a></li></ul></nav><div class="search-pop-overlay"><div class="popup search-popup"><div class="search-header"><span class="search-icon"><i class="fa fa-search"></i></span><div class="search-input-container"><input autocomplete="off" autocapitalize="off" maxlength="80" placeholder="搜索..." spellcheck="false" type="search" class="search-input"></div><span class="popup-btn-close" role="button"><i class="fa fa-times-circle"></i></span></div><div class="search-result-container no-result"><div class="search-result-icon"><i class="fa fa-spinner fa-pulse fa-5x"></i></div></div></div></div></div><div class="toggle sidebar-toggle" role="button"><span class="toggle-line"></span> <span class="toggle-line"></span> <span class="toggle-line"></span></div><aside class="sidebar"><div class="sidebar-inner sidebar-overview-active"><ul class="sidebar-nav"><li class="sidebar-nav-toc">文章目录</li><li class="sidebar-nav-overview">站点概览</li></ul><div class="sidebar-panel-container"><div class="post-toc-wrap sidebar-panel"></div><div class="site-overview-wrap sidebar-panel"><div class="site-author site-overview-item animated" itemprop="author" itemscope itemtype="http://schema.org/Person"><img class="site-author-image" itemprop="image" alt="Nicksxs" src="/uploads/avatar.jpg"><p class="site-author-name" itemprop="name">Nicksxs</p><div class="site-description" itemprop="description">learn from zero,技术博客，Nicksxs，史学森</div></div><div class="site-state-wrap site-overview-item animated"><nav class="site-state"><div class="site-state-item site-state-posts"><a href="/archives/"><span class="site-state-item-count">153</span> <span class="site-state-item-name">日志</span></a></div><div class="site-state-item site-state-categories"><a href="/categories/"><span class="site-state-item-count">146</span> <span class="site-state-item-name">分类</span></a></div><div class="site-state-item site-state-tags"><a href="/tags/"><span class="site-state-item-count">273</span> <span class="site-state-item-name">标签</span></a></div></nav></div><div class="links-of-author site-overview-item animated"><span class="links-of-author-item"><a href="https://github.com/nicksxs" title="GitHub → https:&#x2F;&#x2F;github.com&#x2F;nicksxs" rel="noopener" target="_blank"><i class="fab fa-github fa-fw"></i>GitHub</a> </span><span class="links-of-author-item"><a href="mailto:nicksxs1202@gmail.com" title="E-Mail → mailto:nicksxs1202@gmail.com" rel="noopener" target="_blank"><i class="fa fa-envelope fa-fw"></i>E-Mail</a></span></div><div class="cc-license site-overview-item animated" itemprop="license"><a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" class="cc-opacity" rel="noopener" target="_blank"><img src="https://cdn.jsdelivr.net/npm/@creativecommons/vocabulary@2020.11.3/assets/license_badges/small/by_nc_sa.svg" alt="Creative Commons"></a></div><script charset="utf-8" src="/js/tagcloud.js"></script><script charset="utf-8" src="/js/tagcanvas.js"></script><div class="widget-wrap"><div id="myCanvasContainer" class="widget tagcloud"><canvas width="250" height="250" id="resCanvas"><ul class="tag-list" itemprop="keywords"><li class="tag-list-item"><a class="tag-list-link" href="/tags/2019/" rel="tag">2019</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/2020/" rel="tag">2020</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/2021/" rel="tag">2021</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/2PC/" rel="tag">2PC</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/360-%E5%85%A8%E5%AE%B6%E6%A1%B6/" rel="tag">360 全家桶</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/3PC/" rel="tag">3PC</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/AOP/" rel="tag">AOP</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Adaptive/" rel="tag">Adaptive</a><span class="tag-list-count">1</span></li><li 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class="tag-list-link" href="/tags/FixedThreadPool/" rel="tag">FixedThreadPool</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/G1/" rel="tag">G1</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/GC/" rel="tag">GC</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Garbage-First-Collector/" rel="tag">Garbage-First Collector</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Gogs/" rel="tag">Gogs</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Homebrew/" rel="tag">Homebrew</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Inorder-Traversal/" rel="tag">Inorder Traversal</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Interceptor/" rel="tag">Interceptor</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Intersection-of-Two-Arrays/" rel="tag">Intersection of Two Arrays</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/JMap/" rel="tag">JMap</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/JPS/" rel="tag">JPS</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/JStack/" rel="tag">JStack</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/JVM/" rel="tag">JVM</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Java/" rel="tag">Java</a><span class="tag-list-count">28</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Leetcode-42/" rel="tag">Leetcode 42</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/LimitedThreadPool/" rel="tag">LimitedThreadPool</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Linked-List/" rel="tag">Linked List</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Lowest-Common-Ancestor-of-a-Binary-Tree/" rel="tag">Lowest Common Ancestor of a Binary Tree</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/MQ/" rel="tag">MQ</a><span class="tag-list-count">9</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Mac/" rel="tag">Mac</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Maven/" rel="tag">Maven</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Median-of-Two-Sorted-Arrays/" rel="tag">Median of Two Sorted Arrays</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Mybatis/" rel="tag">Mybatis</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Mysql/" rel="tag">Mysql</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/NameServer/" rel="tag">NameServer</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/PHP/" rel="tag">PHP</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Preorder-Traversal/" rel="tag">Preorder Traversal</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/RPC/" rel="tag">RPC</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Redis/" rel="tag">Redis</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Remove-Duplicates-from-Sorted-List/" rel="tag">Remove Duplicates from Sorted List</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/RocketMQ/" rel="tag">RocketMQ</a><span class="tag-list-count">9</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Rotate-Image/" rel="tag">Rotate Image</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Rust/" rel="tag">Rust</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/SPI/" rel="tag">SPI</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Servlet/" rel="tag">Servlet</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Sharding-Jdbc/" rel="tag">Sharding-Jdbc</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Singleton/" rel="tag">Singleton</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Spring/" rel="tag">Spring</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Spring-Event/" rel="tag">Spring Event</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/SpringBoot/" rel="tag">SpringBoot</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Sql%E6%B3%A8%E5%85%A5/" rel="tag">Sql注入</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Stream/" rel="tag">Stream</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Synchronized/" rel="tag">Synchronized</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Thread-dump/" rel="tag">Thread dump</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/ThreadLocal/" rel="tag">ThreadLocal</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/ThreadPool/" rel="tag">ThreadPool</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Tomcat/" rel="tag">Tomcat</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Trapping-Rain-Water/" rel="tag">Trapping Rain Water</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/WeakReference/" rel="tag">WeakReference</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Web/" rel="tag">Web</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/Webhook/" rel="tag">Webhook</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/WordPress/" rel="tag">WordPress</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/aqs/" rel="tag">aqs</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/await/" rel="tag">await</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/bloom-filter/" rel="tag">bloom filter</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/c/" rel="tag">c++</a><span class="tag-list-count">14</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/cglib/" rel="tag">cglib</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/cgroup/" rel="tag">cgroup</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/cluster/" rel="tag">cluster</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/condition/" rel="tag">condition</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/docker/" rel="tag">docker</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/dp/" rel="tag">dp</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/echo/" rel="tag">echo</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/environment/" rel="tag">environment</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/gap-lock/" rel="tag">gap lock</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/gc/" rel="tag">gc</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/git/" rel="tag">git</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/grep/" rel="tag">grep</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/hadoop/" rel="tag">hadoop</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/icu4c/" rel="tag">icu4c</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/im/" rel="tag">im</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/is-not-null/" rel="tag">is not null</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/is-null/" rel="tag">is null</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/j-u-c/" rel="tag">j.u.c</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/java/" rel="tag">java</a><span class="tag-list-count">22</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/jvm/" rel="tag">jvm</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/leetcode/" rel="tag">leetcode</a><span class="tag-list-count">31</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/leetcode-155/" rel="tag">leetcode 155</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/linked-list/" rel="tag">linked list</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/linux/" rel="tag">linux</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/lock/" rel="tag">lock</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mfc/" rel="tag">mfc</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/min-stack/" rel="tag">min stack</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mq/" rel="tag">mq</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mvcc/" rel="tag">mvcc</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mysql/" rel="tag">mysql</a><span class="tag-list-count">6</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/namespace/" rel="tag">namespace</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/next-key-lock/" rel="tag">next-key lock</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/nginx/" rel="tag">nginx</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/nullsfirst/" rel="tag">nullsfirst</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/openresty/" rel="tag">openresty</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/php/" rel="tag">php</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/procedure/" rel="tag">procedure</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/python/" rel="tag">python</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/read-view/" rel="tag">read view</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/redis/" rel="tag">redis</a><span class="tag-list-count">11</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/scp/" rel="tag">scp</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/signal/" rel="tag">signal</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/sort/" rel="tag">sort</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/spark/" rel="tag">spark</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/ssh/" rel="tag">ssh</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/stack/" rel="tag">stack</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/string/" rel="tag">string</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/swoole/" rel="tag">swoole</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/top/" rel="tag">top</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/uname/" rel="tag">uname</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/unlock/" rel="tag">unlock</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/utf8/" rel="tag">utf8</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/utf8mb4/" rel="tag">utf8mb4</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/utf8mb4-0900-ai-ci/" rel="tag">utf8mb4_0900_ai_ci</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/utf8mb4-general-ci/" rel="tag">utf8mb4_general_ci</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/utf8mb4-unicode-ci/" rel="tag">utf8mb4_unicode_ci</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/value/" rel="tag">value</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/websocket/" rel="tag">websocket</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/zsh/" rel="tag">zsh</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%89%E9%98%B6%E6%AE%B5%E6%8F%90%E4%BA%A4/" rel="tag">三阶段提交</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%8D%E5%8F%AF%E5%8F%98%E5%BC%95%E7%94%A8/" rel="tag">不可变引用</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%9C%E4%BA%AC%E5%A5%A5%E8%BF%90%E4%BC%9A/" rel="tag">东京奥运会</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%A4%E9%98%B6%E6%AE%B5%E6%8F%90%E4%BA%A4/" rel="tag">两阶段提交</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%AD%E5%B1%B1%E8%B7%AF/" rel="tag">中山路</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%AD%E5%BA%8F/" rel="tag">中序</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%AD%E9%97%B4%E4%BB%B6/" rel="tag">中间件</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B8%BE%E9%87%8D/" rel="tag">举重</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%B9%92%E4%B9%93%E7%90%83/" rel="tag">乒乓球</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%BA%8B%E5%8A%A1/" rel="tag">事务</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%BA%8C%E5%8F%89%E6%A0%91/" rel="tag">二叉树</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%BA%92%E6%96%A5%E9%94%81/" rel="tag">互斥锁</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%BB%A3%E7%A0%81%E9%A2%98%E8%A7%A3/" rel="tag">代码题解</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E4%BF%AE%E7%94%B5%E8%84%91%E7%9A%84/" rel="tag">修电脑的</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%81%8F%E5%90%91%E9%94%81/" rel="tag">偏向锁</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%81%A5%E5%BA%B7%E7%A0%81/" rel="tag">健康码</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%85%AC%E4%BA%A4/" rel="tag">公交</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%85%AC%E4%BA%A4%E8%BD%A6/" rel="tag">公交车</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%86%85%E5%AD%98%E5%88%86%E5%B8%83/" rel="tag">内存分布</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F/" rel="tag">内存泄漏</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%87%86%E5%A4%87/" rel="tag">准备</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%87%8F%E8%82%A5/" rel="tag">减肥</a><span class="tag-list-count">6</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E4%BA%8B%E5%8A%A1/" rel="tag">分布式事务</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E9%94%81/" rel="tag">分布式锁</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%88%87%E7%89%87/" rel="tag">切片</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%88%9D%E5%A7%8B%E5%8C%96/" rel="tag">初始化</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%89%8A%E5%B3%B0%E5%A1%AB%E8%B0%B7/" rel="tag">削峰填谷</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%89%8D%E5%BA%8F/" rel="tag">前序</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8A%A0%E5%A1%9E/" rel="tag">加塞</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8A%A0%E8%BD%BD/" rel="tag">加载</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8D%95%E4%BE%8B/" rel="tag">单例</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8D%9A%E5%AE%A2%EF%BC%8C%E6%96%87%E7%AB%A0/" rel="tag">博客，文章</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8E%A6%E9%97%A8/" rel="tag">厦门</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8F%8C%E4%BA%B2%E5%A7%94%E6%B4%BE/" rel="tag">双亲委派</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8F%91%E8%A1%8C%E7%89%88/" rel="tag">发行版</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8F%A3%E7%BD%A9/" rel="tag">口罩</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%8F%AF%E5%8F%98%E5%BC%95%E7%94%A8/" rel="tag">可变引用</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%90%90%E6%A7%BD/" rel="tag">吐槽</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6/" rel="tag">垃圾回收</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%9F%BA%E7%A1%80%E8%AE%BE%E6%96%BD/" rel="tag">基础设施</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%AD%97%E7%AC%A6%E9%9B%86/" rel="tag">字符集</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%AE%89%E5%85%A8/" rel="tag">安全</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%AE%B9%E9%94%99%E6%9C%BA%E5%88%B6/" rel="tag">容错机制</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%AF%84%E7%94%9F%E8%99%AB/" rel="tag">寄生虫</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B0%84%E5%87%BB/" rel="tag">射击</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B0%8F%E6%8A%80%E5%B7%A7/" rel="tag">小技巧</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B1%80%E5%8F%A3%E8%A1%97/" rel="tag">局口街</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B8%83%E9%9A%86%E8%BF%87%E6%BB%A4%E5%99%A8/" rel="tag">布隆过滤器</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%B2%E6%B4%BB/" rel="tag">干活</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%B4%E4%B8%AD%E6%80%BB%E7%BB%93/" rel="tag">年中总结</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/" rel="tag">年终总结</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%B6%E5%8F%91/" rel="tag">并发</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%B8%E7%A6%8F%E4%BA%86%E5%90%97/" rel="tag">幸福了吗</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%B9%BB%E8%AF%BB/" rel="tag">幻读</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%BA%94%E7%94%A8/" rel="tag">应用</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%BC%80%E8%BD%A6/" rel="tag">开车</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%BC%B1%E5%BC%95%E7%94%A8/" rel="tag">弱引用</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E5%BD%B1%E8%AF%84/" rel="tag">影评</a><span 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href="https://nicksxs.me/2021/04/11/%E8%81%8A%E8%81%8A%E5%8E%A6%E9%97%A8%E6%97%85%E6%B8%B8%E7%9A%84%E5%A5%BD%E4%B8%8E%E4%B8%8D%E5%A5%BD/"><span hidden itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="image" content="/uploads/avatar.jpg"><meta itemprop="name" content="Nicksxs"><meta itemprop="description" content="learn from zero,技术博客，Nicksxs，史学森"></span><span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Nicksxs's Blog"></span><header class="post-header"><h2 class="post-title" itemprop="name headline"><a href="/2021/04/11/%E8%81%8A%E8%81%8A%E5%8E%A6%E9%97%A8%E6%97%85%E6%B8%B8%E7%9A%84%E5%A5%BD%E4%B8%8E%E4%B8%8D%E5%A5%BD/" class="post-title-link" itemprop="url">聊聊厦门旅游的好与不好</a></h2><div class="post-meta-container"><div class="post-meta"><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-calendar"></i> </span><span class="post-meta-item-text">发表于</span> <time title="创建时间：2021-04-11 23:38:07" itemprop="dateCreated datePublished" datetime="2021-04-11T23:38:07+08:00">2021-04-11</time> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-folder"></i> </span><span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/" itemprop="url" rel="index"><span itemprop="name">生活</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/%E6%97%85%E6%B8%B8/" itemprop="url" rel="index"><span itemprop="name">旅游</span></a> </span></span><span id="/2021/04/11/%E8%81%8A%E8%81%8A%E5%8E%A6%E9%97%A8%E6%97%85%E6%B8%B8%E7%9A%84%E5%A5%BD%E4%B8%8E%E4%B8%8D%E5%A5%BD/" class="post-meta-item leancloud_visitors" data-flag-title="聊聊厦门旅游的好与不好" title="阅读次数"><span class="post-meta-item-icon"><i class="far fa-eye"></i> </span><span class="post-meta-item-text">阅读次数：</span> <span class="leancloud-visitors-count"></span> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-comment"></i> </span><span class="post-meta-item-text">Disqus：</span> <a title="disqus" href="/2021/04/11/%E8%81%8A%E8%81%8A%E5%8E%A6%E9%97%A8%E6%97%85%E6%B8%B8%E7%9A%84%E5%A5%BD%E4%B8%8E%E4%B8%8D%E5%A5%BD/#disqus_thread" itemprop="discussionUrl"><span class="post-comments-count disqus-comment-count" data-disqus-identifier="2021/04/11/聊聊厦门旅游的好与不好/" itemprop="commentCount"></span></a></span></div></div></header><div class="post-body" itemprop="articleBody"><p>这几天去了趟厦门，原来几年前就想去了，本来都请好假了，后面因为一些事情没去成，这次刚好公司组织，就跟 LD 一起去了厦门，也不洋洋洒洒地写游记了，后面可能会有，今天先来总结下好的地方和比较坑的地方。<br>这次主要去了中山路、鼓浪屿、曾厝(cuo)垵、植物园、灵玲马戏团，因为住的离环岛路比较近，还有幸现场看了下厦门马拉松，其中</p><h2 id="中山路"><a href="#中山路" class="headerlink" title="中山路"></a>中山路</h2><p>这里看上去是有点民国时期的建筑风格，部分像那种电视里的租界啥的，不过这次去的时候都在翻修，路一大半拦起来了，听导游说这里往里面走有个局口街，然后上次听前同事说厦门比较有名的就是沙茶面和海蛎煎，不出意料的不太爱吃，沙茶面比较普通，可能是没吃到正宗的，海蛎煎吃不惯，倒是有个大叔的沙茶里脊还不错，在局口街那，还有小哥在那拍，应该也算是个网红打卡点了，然后吃了个油条麻糍也还不错，总体如果是看建筑的话可能最近不是个好时间，个人也没这方面爱好，吃的话最好多打听打听沙茶面跟海蛎煎哪里正宗。如果不知道哪家好吃，也不爱看这类建筑的可以排个坑。</p><h2 id="鼓浪屿"><a href="#鼓浪屿" class="headerlink" title="鼓浪屿"></a>鼓浪屿</h2><p>鼓浪屿也是完全没啥概念，需要乘船过去，但是只要二十分钟，岛上没有机动车，基本都靠走，有几个比较有名的地方，菽庄花园，里面有钢琴博物馆，对这个感兴趣的可以去看看，旁边是沙滩还可以逛逛，然后有各种博物馆，风琴啥的，岛上最大的特色是巷子多，道听途说有三百多条小巷，还有几个网红打卡点，周杰伦晴天墙，还有个最美转角，都是挤满了人排队打卡拍照，不过如果不着急，慢慢悠悠逛逛还是不错的，比较推荐，推荐值☆☆</p><h2 id="曾厝垵"><a href="#曾厝垵" class="headerlink" title="曾厝垵"></a>曾厝垵</h2><p>一直读不对这个字，都是叫：那个曾什么垵，愧对语文老师，这里到算是意外之喜，鼓浪屿回来已经挺累了，不过由于比较饿（什么原因后面说），并且离住的地方不远，就过去逛了逛，东西还蛮好吃的，芒果挺便宜，一大杯才十块，无骨鸡爪很贵，不是特别爱，臭豆腐不错的，也不算很贵，这里想起来，那边八婆婆的豆乳烧仙草还不错的，去中山路那会喝了，来曾厝垵也买了，奶茶爱好者可以试试，含糖量应该很高，不爱甜食或者减肥的同学慎重考虑好了再尝试，晚上那边从牌坊出来，沿着环岛路挺多夜宵店什么的，非常推荐，推荐值☆☆☆☆</p><h2 id="植物园"><a href="#植物园" class="headerlink" title="植物园"></a>植物园</h2><p>植物园还是挺名副其实的，有热带植物，沙漠多肉，因为赶时间逛得不多，热带雨林植物那太多人了，都是在那拍照，而且我指的拍照都是拍人照，本身就很小的路，各种十八线网红，或者普通游客在那摆 pose 拍照，挺无语的；沙漠多肉比较惊喜，好多比人高的仙人掌，一大片的仙人球，很可恶的是好多大仙人掌上都有人刻字，越来越体会到，我们社会人多了，什么样的都有，而且不少；还看了下百花厅，但没什么特别的，可能赶时间比较着急，没仔细看，比较推荐，推荐值☆☆☆</p><h2 id="灵玲马戏团"><a href="#灵玲马戏团" class="headerlink" title="灵玲马戏团"></a>灵玲马戏团</h2><p>对这个其实比较排斥，主要是比较晚了，跑的有点远（我太懒了），一开始真的挺拉低体验感受的，上来个什么书法家，现场画马，卖画；不过后面的还算值回票价，主题是花木兰，空中动作应该很考验基本功，然后那些老外的飞轮还跳绳（不知道学名叫啥），动物那块不太忍心看，应该是吃了不少苦头，不过人都这样就往后点再心疼动物吧。</p><h2 id="总结"><a href="#总结" class="headerlink" title="总结"></a>总结</h2><p>厦门是个非常适合干饭人的地方，吃饭的地方大部分是差不多一桌菜十个左右就完了，而且上来就一大碗饭，一瓶雪碧一瓶可乐，对于经常是家里跟亲戚吃饭都得十几二十个菜的乡下人来说，不太吃得惯这样的🤦‍♂️，当然很有可能是我们预算不足，点的差。但是有一点是我回杭州深有感触的，感觉杭州司机的素质真的是跟厦门的司机差了比较多，杭州除非公交车停了，否则人行道很难看到主动让人的，当然这里拿厦门这个旅游城市来对比也不是很公平，不过这也是体现城市现代化文明水平的一个维度吧。</p></div><footer class="post-footer"><div class="post-eof"></div></footer></article></div><div class="post-block"><article itemscope itemtype="http://schema.org/Article" class="post-content"><link itemprop="mainEntityOfPage" href="https://nicksxs.me/2021/04/04/%E8%81%8A%E8%81%8A-dubbo-%E7%9A%84%E7%BA%BF%E7%A8%8B%E6%B1%A0/"><span hidden itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="image" content="/uploads/avatar.jpg"><meta itemprop="name" content="Nicksxs"><meta itemprop="description" content="learn from zero,技术博客，Nicksxs，史学森"></span><span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Nicksxs's Blog"></span><header class="post-header"><h2 class="post-title" itemprop="name headline"><a href="/2021/04/04/%E8%81%8A%E8%81%8A-dubbo-%E7%9A%84%E7%BA%BF%E7%A8%8B%E6%B1%A0/" class="post-title-link" itemprop="url">聊聊 dubbo 的线程池</a></h2><div class="post-meta-container"><div class="post-meta"><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-calendar"></i> </span><span class="post-meta-item-text">发表于</span> <time title="创建时间：2021-04-04 22:14:57" itemprop="dateCreated datePublished" datetime="2021-04-04T22:14:57+08:00">2021-04-04</time> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-folder"></i> </span><span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Java/" itemprop="url" rel="index"><span itemprop="name">Java</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Dubbo-%E7%BA%BF%E7%A8%8B%E6%B1%A0/" itemprop="url" rel="index"><span itemprop="name">Dubbo - 线程池</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Dubbo/" itemprop="url" rel="index"><span itemprop="name">Dubbo</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Dubbo/%E7%BA%BF%E7%A8%8B%E6%B1%A0/" itemprop="url" rel="index"><span itemprop="name">线程池</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Dubbo/%E7%BA%BF%E7%A8%8B%E6%B1%A0/ThreadPool/" itemprop="url" rel="index"><span itemprop="name">ThreadPool</span></a> </span></span><span id="/2021/04/04/%E8%81%8A%E8%81%8A-dubbo-%E7%9A%84%E7%BA%BF%E7%A8%8B%E6%B1%A0/" class="post-meta-item leancloud_visitors" data-flag-title="聊聊 dubbo 的线程池" title="阅读次数"><span class="post-meta-item-icon"><i class="far fa-eye"></i> </span><span class="post-meta-item-text">阅读次数：</span> <span class="leancloud-visitors-count"></span> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-comment"></i> </span><span class="post-meta-item-text">Disqus：</span> <a title="disqus" href="/2021/04/04/%E8%81%8A%E8%81%8A-dubbo-%E7%9A%84%E7%BA%BF%E7%A8%8B%E6%B1%A0/#disqus_thread" itemprop="discussionUrl"><span class="post-comments-count disqus-comment-count" data-disqus-identifier="2021/04/04/聊聊-dubbo-的线程池/" itemprop="commentCount"></span></a></span></div></div></header><div class="post-body" itemprop="articleBody"><p>之前没注意到这一块，只是比较模糊的印象 dubbo 自己基于 ThreadPoolExecutor 定义了几个线程池，但是没具体看过，主要是觉得就是为了避免使用 jdk 自带的那几个(java.util.concurrent.Executors)，防止出现那些问题<br>看下代码目录主要是这几个<br><img data-src="https://gitee.com/nicksxs/images/raw/master/uPic/3qIllK.png"></p><ul><li>FixedThreadPool：创建一个复用固定个数线程的线程池。<br>简单看下代码<pre class="line-numbers language-java" data-language="java"><code class="language-java"><span class="token keyword">public</span> <span class="token class-name">Executor</span> <span class="token function">getExecutor</span><span class="token punctuation">(</span><span class="token class-name">URL</span> url<span class="token punctuation">)</span> <span class="token punctuation">&#123;</span>
<span class="token class-name">String</span> name <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threadname"</span><span class="token punctuation">,</span> <span class="token string">"Dubbo"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> threads <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threads"</span><span class="token punctuation">,</span> <span class="token number">200</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> queues <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"queues"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">return</span> <span class="token keyword">new</span> <span class="token class-name">ThreadPoolExecutor</span><span class="token punctuation">(</span>threads<span class="token punctuation">,</span> threads<span class="token punctuation">,</span> <span class="token number">0L</span><span class="token punctuation">,</span> <span class="token class-name">TimeUnit</span><span class="token punctuation">.</span>MILLISECONDS<span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token class-name">BlockingQueue</span><span class="token punctuation">)</span><span class="token punctuation">(</span>queues <span class="token operator">==</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">SynchronousQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token punctuation">(</span>queues <span class="token operator">&lt;</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span>queues<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">NamedThreadFactory</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">AbortPolicyWithReport</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> url<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">&#125;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>可以看到核心线程数跟最大线程数一致，也就是说就不会在核心线程数和最大线程数之间动态变化了</li><li>LimitedThreadPool：创建一个线程池，这个线程池中线程个数随着需要量动态增加，但是数量不超过配置的阈值的个数，另外空闲线程不会被回收，会一直存在。<pre class="line-numbers language-java" data-language="java"><code class="language-java"><span class="token keyword">public</span> <span class="token class-name">Executor</span> <span class="token function">getExecutor</span><span class="token punctuation">(</span><span class="token class-name">URL</span> url<span class="token punctuation">)</span> <span class="token punctuation">&#123;</span>
<span class="token class-name">String</span> name <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threadname"</span><span class="token punctuation">,</span> <span class="token string">"Dubbo"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> cores <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"corethreads"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> threads <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threads"</span><span class="token punctuation">,</span> <span class="token number">200</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> queues <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"queues"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">return</span> <span class="token keyword">new</span> <span class="token class-name">ThreadPoolExecutor</span><span class="token punctuation">(</span>cores<span class="token punctuation">,</span> threads<span class="token punctuation">,</span> <span class="token number">9223372036854775807L</span><span class="token punctuation">,</span> <span class="token class-name">TimeUnit</span><span class="token punctuation">.</span>MILLISECONDS<span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token class-name">BlockingQueue</span><span class="token punctuation">)</span><span class="token punctuation">(</span>queues <span class="token operator">==</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">SynchronousQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token punctuation">(</span>queues <span class="token operator">&lt;</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span>queues<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">NamedThreadFactory</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">AbortPolicyWithReport</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> url<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">&#125;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>这个特点主要是创建了保活时间特别长，即可以认为不会被回收了</li><li>EagerThreadPool ：创建一个线程池，这个线程池当所有核心线程都处于忙碌状态时候，创建新的线程来执行新任务，而不是把任务放入线程池阻塞队列。<pre class="line-numbers language-java" data-language="java"><code class="language-java"><span class="token keyword">public</span> <span class="token class-name">Executor</span> <span class="token function">getExecutor</span><span class="token punctuation">(</span><span class="token class-name">URL</span> url<span class="token punctuation">)</span> <span class="token punctuation">&#123;</span>
<span class="token class-name">String</span> name <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threadname"</span><span class="token punctuation">,</span> <span class="token string">"Dubbo"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> cores <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"corethreads"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> threads <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threads"</span><span class="token punctuation">,</span> <span class="token number">2147483647</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> queues <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"queues"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> alive <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"alive"</span><span class="token punctuation">,</span> <span class="token number">60000</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token class-name">TaskQueue</span><span class="token generics"><span class="token punctuation">&lt;</span><span class="token class-name">Runnable</span><span class="token punctuation">></span></span> taskQueue <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TaskQueue</span><span class="token punctuation">(</span>queues <span class="token operator">&lt;=</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token number">1</span> <span class="token operator">:</span> queues<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token class-name">EagerThreadPoolExecutor</span> executor <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">EagerThreadPoolExecutor</span><span class="token punctuation">(</span>cores<span class="token punctuation">,</span> threads<span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token keyword">long</span><span class="token punctuation">)</span>alive<span class="token punctuation">,</span> <span class="token class-name">TimeUnit</span><span class="token punctuation">.</span>MILLISECONDS<span class="token punctuation">,</span> taskQueue<span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">NamedThreadFactory</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">AbortPolicyWithReport</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> url<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
taskQueue<span class="token punctuation">.</span><span class="token function">setExecutor</span><span class="token punctuation">(</span>executor<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">return</span> executor<span class="token punctuation">;</span>
<span class="token punctuation">&#125;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>这个是改动最多的一个了，因为需要实现这个机制，有兴趣的可以详细看下</li><li>CachedThreadPool： 创建一个自适应线程池，当线程处于空闲1分钟时候，线程会被回收，当有新请求到来时候会创建新线程<pre class="line-numbers language-java" data-language="java"><code class="language-java"><span class="token keyword">public</span> <span class="token class-name">Executor</span> <span class="token function">getExecutor</span><span class="token punctuation">(</span><span class="token class-name">URL</span> url<span class="token punctuation">)</span> <span class="token punctuation">&#123;</span>
<span class="token class-name">String</span> name <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threadname"</span><span class="token punctuation">,</span> <span class="token string">"Dubbo"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> cores <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"corethreads"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> threads <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"threads"</span><span class="token punctuation">,</span> <span class="token number">2147483647</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> queues <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"queues"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">int</span> alive <span class="token operator">=</span> url<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"alive"</span><span class="token punctuation">,</span> <span class="token number">60000</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">return</span> <span class="token keyword">new</span> <span class="token class-name">ThreadPoolExecutor</span><span class="token punctuation">(</span>cores<span class="token punctuation">,</span> threads<span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token keyword">long</span><span class="token punctuation">)</span>alive<span class="token punctuation">,</span> <span class="token class-name">TimeUnit</span><span class="token punctuation">.</span>MILLISECONDS<span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token class-name">BlockingQueue</span><span class="token punctuation">)</span><span class="token punctuation">(</span>queues <span class="token operator">==</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">SynchronousQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token punctuation">(</span>queues <span class="token operator">&lt;</span> <span class="token number">0</span> <span class="token operator">?</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">:</span> <span class="token keyword">new</span> <span class="token class-name">LinkedBlockingQueue</span><span class="token punctuation">(</span>queues<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">NamedThreadFactory</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">AbortPolicyWithReport</span><span class="token punctuation">(</span>name<span class="token punctuation">,</span> url<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">&#125;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>这里可以看到线程池的配置，核心是 0，最大线程数是 2147483647，保活时间是一分钟<br>只是非常简略的介绍下，有兴趣可以自行阅读代码。</li></ul></div><footer class="post-footer"><div class="post-eof"></div></footer></article></div><div class="post-block"><article itemscope itemtype="http://schema.org/Article" class="post-content"><link itemprop="mainEntityOfPage" href="https://nicksxs.me/2021/03/31/2020-%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/"><span hidden itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="image" content="/uploads/avatar.jpg"><meta itemprop="name" content="Nicksxs"><meta itemprop="description" content="learn from zero,技术博客，Nicksxs，史学森"></span><span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Nicksxs's Blog"></span><header class="post-header"><h2 class="post-title" itemprop="name headline"><a href="/2021/03/31/2020-%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/" class="post-title-link" itemprop="url">2020 年终总结</a></h2><div class="post-meta-container"><div class="post-meta"><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-calendar"></i> </span><span class="post-meta-item-text">发表于</span> <time title="创建时间：2021-03-31 23:37:28" itemprop="dateCreated datePublished" datetime="2021-03-31T23:37:28+08:00">2021-03-31</time> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-folder"></i> </span><span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/" itemprop="url" rel="index"><span itemprop="name">生活</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/" itemprop="url" rel="index"><span itemprop="name">年终总结</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/2020/" itemprop="url" rel="index"><span itemprop="name">2020</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/" itemprop="url" rel="index"><span itemprop="name">年终总结</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/2020/" itemprop="url" rel="index"><span itemprop="name">2020</span></a> </span></span><span id="/2021/03/31/2020-%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/" class="post-meta-item leancloud_visitors" data-flag-title="2020 年终总结" title="阅读次数"><span class="post-meta-item-icon"><i class="far fa-eye"></i> </span><span class="post-meta-item-text">阅读次数：</span> <span class="leancloud-visitors-count"></span> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-comment"></i> </span><span class="post-meta-item-text">Disqus：</span> <a title="disqus" href="/2021/03/31/2020-%E5%B9%B4%E7%BB%88%E6%80%BB%E7%BB%93/#disqus_thread" itemprop="discussionUrl"><span class="post-comments-count disqus-comment-count" data-disqus-identifier="2021/03/31/2020-年终总结/" itemprop="commentCount"></span></a></span></div></div></header><div class="post-body" itemprop="articleBody"><h2 id="拖更原因"><a href="#拖更原因" class="headerlink" title="拖更原因"></a>拖更原因</h2><p>这篇年终总结本来应该在农历过完年就出来的，结果是对没有受疫情影响的春节放假时间空闲情况预估太良好，虽然公司调了几天假，但是因为春节期间疫情状况比较好，本来酒店都不让接待聚餐什么的，后来统统放开，结果就是从初一到初六每天要不就是去亲戚家，要不就是去酒店饭店吃饭，计划很丰满，现实很骨感，时间感觉一下就没了，然后年后感觉有点犯懒了，所以才拖到现在。</p><h2 id="生活-健身跑步"><a href="#生活-健身跑步" class="headerlink" title="生活-健身跑步"></a>生活-健身跑步</h2><p>去年（19 年）的时候跑步突破了 300 公里，然后20 年给自己定了个 400 公里的目标，结果意料之中的没成功，原因可能疫情算一点吧，后面买了跑步机之后，基本周末回家都能跑一下，但是最后还是只跑了300 多公里，总的keep 记录跑量也没超过 1000 公里，所以跑步这个目标还是没成功的，不过还算是比去年多跑一点，这样也算后面好突破点，后面的目标就不定的太高了，每年能比前一年多一点就好，其实跑步已经从一种减肥方式变成一种习惯了，一周一次的跑步已经比较难有效减重了，但是对于保持精力和身体状态还是很有效和重要的，只是对于目前的体重还是要多减下去一些跑步才好，太重了对膝盖负担太大了，可惜还是时间呐，游泳骑车什么的都需要更苛刻的条件和时间，饮食呢控制起来比较难（贪吃<br>终于在 3 月底之前跑到了 1000 公里，迟了三个月，不过也总算达到了，只是体重控制还是不行，有试着走走楼梯，但是感觉对膝盖负担比较大，得再想想用什么方式</p><p><img data-src="https://gitee.com/nicksxs/images/raw/master/uPic/WechatIMG546-1.png"></p><h2 id="技术成长"><a href="#技术成长" class="headerlink" title="技术成长"></a>技术成长</h2><p>一直提不起笔来写这篇年终总结还有个比较大的原因是觉得20 年的成长不如预期，大小目标都没怎么完成，比如深入了解 jvm，是想能有些深入的见解，而不再是某些点的比较片面的理解，系统性的归纳总结也比较少，每个方向或多或少有些看法和理解，但是不全面，一些东西看过了也会忘记，需要温故而知新，比如 AQS 的内容，第一次读其实理解比较浅，后面就强迫自己去读，去写，才有了一些比之前更深入的理解，因为很多文章都是带有作者思路的引导，适不适合自己都要看是否能从他的思路把它看懂，有些就差别很大，这个跟看书也一样，有些书大众一致推荐，一般情况下大多是经典的好的，但是也有可能是不太适合自己的，可能有时候机缘巧合看到的反而让人茅塞顿开，在 todo 里已经积攒了好多的点和面需要去学习实践，一方面是自己懒，一方面是时间也相对偏少，看看 21 年能不能有所提升，加强“时间管理”，哈哈</p><p>技术上主要是看了 mysql 的 mvcc 相关内容，rocketmq 的，redis 的代码，还有 mybatis 等，其实每一个都能写很多，也有很多值得学习的，需要全面系统学习，之前想好好画一个思维导图，将整个技术体系都梳理下，还只做了一点点，方式也有点问题，应该从大到小，而不是深度优先，细节有很多，每一个方面都有自己比较熟悉擅长的，也有不太了解的，可以做一个评分，这个也是亟待改善的，希望今年能完成。</p><h2 id="博客"><a href="#博客" class="headerlink" title="博客"></a>博客</h2><p>博客方面 20 年一年整是写了 53 篇，差不多是一周一篇的节奏，这个还是不错的，虽然博客质量参差不齐，但是这个更新频率还是比较好的，并且也定了个潜规则，可以一周技术一周生活，这样能缓解水文的频率，提高些技术文章的质量，虽然结果并没有好多少，不过感觉还是可以这么坚持的，能提高一些技术文章的质量那就更好了</p></div><footer class="post-footer"><div class="post-eof"></div></footer></article></div><div class="post-block"><article itemscope itemtype="http://schema.org/Article" class="post-content"><link itemprop="mainEntityOfPage" href="https://nicksxs.me/2021/03/28/%E8%81%8A%E8%81%8A-Linux-%E4%B8%8B%E7%9A%84-top-%E5%91%BD%E4%BB%A4/"><span hidden itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="image" content="/uploads/avatar.jpg"><meta itemprop="name" content="Nicksxs"><meta itemprop="description" content="learn from zero,技术博客，Nicksxs，史学森"></span><span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Nicksxs's Blog"></span><header class="post-header"><h2 class="post-title" itemprop="name headline"><a href="/2021/03/28/%E8%81%8A%E8%81%8A-Linux-%E4%B8%8B%E7%9A%84-top-%E5%91%BD%E4%BB%A4/" class="post-title-link" itemprop="url">聊聊 Linux 下的 top 命令</a></h2><div class="post-meta-container"><div class="post-meta"><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-calendar"></i> </span><span class="post-meta-item-text">发表于</span> <time title="创建时间：2021-03-28 23:06:21" itemprop="dateCreated datePublished" datetime="2021-03-28T23:06:21+08:00">2021-03-28</time> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-folder"></i> </span><span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/" itemprop="url" rel="index"><span itemprop="name">Linux</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E5%B0%8F%E6%8A%80%E5%B7%A7/" itemprop="url" rel="index"><span itemprop="name">小技巧</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/%E5%91%BD%E4%BB%A4/" itemprop="url" rel="index"><span itemprop="name">命令</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/%E5%91%BD%E4%BB%A4/top/" itemprop="url" rel="index"><span itemprop="name">top</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E5%B0%8F%E6%8A%80%E5%B7%A7/top/" itemprop="url" rel="index"><span itemprop="name">top</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E5%B0%8F%E6%8A%80%E5%B7%A7/top/%E6%8E%92%E5%BA%8F/" itemprop="url" rel="index"><span itemprop="name">排序</span></a> </span></span><span id="/2021/03/28/%E8%81%8A%E8%81%8A-Linux-%E4%B8%8B%E7%9A%84-top-%E5%91%BD%E4%BB%A4/" class="post-meta-item leancloud_visitors" data-flag-title="聊聊 Linux 下的 top 命令" title="阅读次数"><span class="post-meta-item-icon"><i class="far fa-eye"></i> </span><span class="post-meta-item-text">阅读次数：</span> <span class="leancloud-visitors-count"></span> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-comment"></i> </span><span class="post-meta-item-text">Disqus：</span> <a title="disqus" href="/2021/03/28/%E8%81%8A%E8%81%8A-Linux-%E4%B8%8B%E7%9A%84-top-%E5%91%BD%E4%BB%A4/#disqus_thread" itemprop="discussionUrl"><span class="post-comments-count disqus-comment-count" data-disqus-identifier="2021/03/28/聊聊-Linux-下的-top-命令/" itemprop="commentCount"></span></a></span></div></div></header><div class="post-body" itemprop="articleBody"><p>top 命令在日常的 Linux 使用中，特别是做一些服务器的简单状态查看，排查故障都起了比较大的作用，但是由于这个命令看到的东西比较多，一般只会看部分，或者说像我这样就会比较片面地看一些信息，比如默认是进程维度的，可以在启动命令的时候加<code>-H</code>进入线程模式</p><pre class="line-numbers language-none"><code class="language-none">-H :Threads-mode operation
Instructs top to display individual threads. Without this command-line option a summation of all threads in each process is shown. Later
this can be changed with the &#96;H&#39; interactive command.<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span></span></code></pre><p>这样就能用在 Java 中去 jstack 中找到对应的线程<br>其实还有比较重要的两个操作，<br>一个是在 top 启动状态下，按<code>c</code>键，这样能把比如说是一个 Java 进程，具体的进程命令显示出来<br>像这样<br>执行前是这样<br><img data-src="https://gitee.com/nicksxs/images/raw/master/uPic/LKn8Bs.png"><br>执行后是这样<br><img data-src="https://gitee.com/nicksxs/images/raw/master/uPic/1xD6VM.png"><br>第二个就是排序了</p><pre class="line-numbers language-none"><code class="language-none">SORTING of task window
For compatibility, this top supports most of the former top sort keys. Since this is primarily a service to former top users, these commands
do not appear on any help screen.
command sorted-field supported
A start time (non-display) No
M %MEM Yes
N PID Yes
P %CPU Yes
T TIME+ Yes
Before using any of the following sort provisions, top suggests that you temporarily turn on column highlighting using the &#96;x&#39; interactive com‐
mand. That will help ensure that the actual sort environment matches your intent.
The following interactive commands will only be honored when the current sort field is visible. The sort field might not be visible because:
1) there is insufficient Screen Width
2) the &#96;f&#39; interactive command turned it Off
&lt; :Move-Sort-Field-Left
Moves the sort column to the left unless the current sort field is the first field being displayed.
&gt; :Move-Sort-Field-Right
Moves the sort column to the right unless the current sort field is the last field being displayed.<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre><p>查看 man page 可以找到这一段，其实一般 man page 都是最细致的，只不过因为太多了，有时候懒得看，这里可以通过大写 <code>M</code> 和大写 <code>P</code> 分别按内存和 CPU 排序，下面还有两个小技巧，通过按 x 可以将当前活跃的排序列用不同颜色标出来，然后可以通过<code>&lt;</code>和<code>&gt;</code>直接左右移动排序列</p></div><footer class="post-footer"><div class="post-eof"></div></footer></article></div><div class="post-block"><article itemscope itemtype="http://schema.org/Article" class="post-content"><link itemprop="mainEntityOfPage" href="https://nicksxs.me/2021/03/21/%E5%85%B3%E4%BA%8E%E5%85%AC%E5%85%B1%E4%BA%A4%E9%80%9A%E5%86%8D%E5%90%90%E4%B8%AA%E6%A7%BD/"><span hidden itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="image" content="/uploads/avatar.jpg"><meta itemprop="name" content="Nicksxs"><meta itemprop="description" content="learn from zero,技术博客，Nicksxs，史学森"></span><span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Nicksxs's Blog"></span><header class="post-header"><h2 class="post-title" itemprop="name headline"><a href="/2021/03/21/%E5%85%B3%E4%BA%8E%E5%85%AC%E5%85%B1%E4%BA%A4%E9%80%9A%E5%86%8D%E5%90%90%E4%B8%AA%E6%A7%BD/" class="post-title-link" itemprop="url">关于公共交通再吐个槽</a></h2><div class="post-meta-container"><div class="post-meta"><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-calendar"></i> </span><span class="post-meta-item-text">发表于</span> <time title="创建时间：2021-03-21 23:23:40" itemprop="dateCreated datePublished" datetime="2021-03-21T23:23:40+08:00">2021-03-21</time> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-folder"></i> </span><span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/" itemprop="url" rel="index"><span itemprop="name">生活</span></a> </span>， <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/%E7%94%9F%E6%B4%BB/%E5%85%AC%E4%BA%A4/" itemprop="url" rel="index"><span itemprop="name">公交</span></a> </span></span><span id="/2021/03/21/%E5%85%B3%E4%BA%8E%E5%85%AC%E5%85%B1%E4%BA%A4%E9%80%9A%E5%86%8D%E5%90%90%E4%B8%AA%E6%A7%BD/" class="post-meta-item leancloud_visitors" data-flag-title="关于公共交通再吐个槽" title="阅读次数"><span class="post-meta-item-icon"><i class="far fa-eye"></i> </span><span class="post-meta-item-text">阅读次数：</span> <span class="leancloud-visitors-count"></span> </span><span class="post-meta-item"><span class="post-meta-item-icon"><i class="far fa-comment"></i> </span><span class="post-meta-item-text">Disqus：</span> <a title="disqus" href="/2021/03/21/%E5%85%B3%E4%BA%8E%E5%85%AC%E5%85%B1%E4%BA%A4%E9%80%9A%E5%86%8D%E5%90%90%E4%B8%AA%E6%A7%BD/#disqus_thread" itemprop="discussionUrl"><span class="post-comments-count disqus-comment-count" data-disqus-identifier="2021/03/21/关于公共交通再吐个槽/" itemprop="commentCount"></span></a></span></div></div></header><div class="post-body" itemprop="articleBody"><p>事情源于周末来回家发生的两件事情，先是回去的时候从高铁下车要坐公交，现在算是有个比较好的临时候车点了，但是可能由于疫情好转，晚上都不用检查健康码就可以进候车点，但是上公交的时候还是需要看健康码，一般情况下从高铁下来的，各个地方的人都有，而且也不太清楚这边上公交车需要查验健康码，我的一个看法是候车的时候就应该放个横幅告示，或者再配合喇叭循环播放，请提前准备好健康码，上车前需要查验，因为像这周的情况，我乘坐的那辆车是间隔时间比较长，而且终点是工业开发区，可能是比较多外来务工人员的目的地，正好这部分人可能对于操作手机检验健康码这个事情不太熟悉，所以结果就是头上几个不知道怎么搞出来健康码，然后让几乎有满满一整车的人在后面堵着，司机又非常厌烦那些没有提前出示健康码的，有位乘客搞得久了点，还被误以为没刷卡买票，差点吵起来，其实公共交通或者高铁站负责的在公交指引路线上多写一句上车前需要查验健康码，可能就能改善比较多，还有就是那个积水的路，这个吐槽起来就一大坨了，整个绍兴像 dayuejin 一样到处都是破路。<br>第二个就是来杭州的时候，经过人行横道，远处车道的公交车停下来等我们了，为了少添麻烦总想快点穿过去，但是这时靠近我们的车道（晚上光线较暗，可见度不佳）有一辆从远处来的奥迪 A4 还是 A5 这种的车反而想加速冲过去，如果少看一下可能我已经残了，交规考的靠近人行道要减速好像基本都是个摆设了，杭州也只有公交车因为一些考核指标原因会主动礼让，人其实需要有同理心，虽然可能有些人是开车多于骑车走路的，但是总也不可能永远不穿人行道吧，甚至这些人可能还会在人行道红灯的时候走过去。这个事情不是吐槽公共交通的，只是也有些许关系，想起来还有一件事也是刚才来杭州的时候看到的，等公交的时候看到有辆路虎要加塞，而目标车道刚好是辆大货车，大货车看到按了喇叭，路虎犹豫了下还是挤进去了，可能是对路虎的扛撞性能非常自信吧，反正我是挺后怕的，这种级别的车，被撞了的话估计还是鸡蛋撞石头，吨位惯性在那，这里再延伸下，挺多开豪车的人好像都觉得这路上路权更大一些，谁谁都得让着他，可能实际吃亏的不多，所以越加巩固了这种思维，当真的碰到不管的可能就会明白了，路权这个事情在天朝也基本没啥人重视，也没想说个结论，就到这吧</p></div><footer 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