277 lines
31 KiB
HTML
277 lines
31 KiB
HTML
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fa-heart"></i><span> 关于</span></a></div></div><div id="toggle-menu"><a class="site-page" href="javascript:void(0);"><i class="fas fa-bars fa-fw"></i></a></div></div></nav><div id="page-site-info"><h1 id="site-title">java</h1></div></header><main class="layout" id="content-inner"><div class="recent-posts category_ui" id="recent-posts"><div class="recent-post-item"><div class="post_cover left"><a href="/posts/f5786ffa.html" title="详细分析JDK中Stream的实现原理"><img class="post-bg" src= "/img/loading.gif" data-lazy-src="/img/background.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="详细分析JDK中Stream的实现原理"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/f5786ffa.html" title="详细分析JDK中Stream的实现原理">详细分析JDK中Stream的实现原理</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2024-03-19T06:24:23.059Z" title="发表于 2024-03-19 14:24:23">2024-03-19</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/java/">java</a></span></div><div class="content">详细分析JDK中Stream的实现原理前提Stream是JDK1.8中首次引入的，距今已经过去了接近8年时间（JDK1.8正式版是2013年底发布的）。Stream的引入一方面极大地简化了某些开发场景，另一方面也可能降低了编码的可读性（确实有不少人说到Stream会降低代码的可读性，但是在笔者看来，熟练使用之后反而觉得代码的可读性提高了）。这篇文章会花巨量篇幅，详细分析Stream的底层实现原理，参考的源码是JDK11的源码，其他版本JDK可能不适用于本文中的源码展示和相关例子。
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这篇文章花费了极多时间和精力梳理和编写，希望能够帮助到本文的读者
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Stream是如何做到向前兼容的Stream是JDK1.8引入的，如要需要JDK1.7或者以前的代码也能在JDK1.8或以上运行，那么Stream的引入必定不能在原来已经发布的接口方法进行修改，否则必定会因为兼容性问题导致老版本的接口实现无法在新版本中运行（方法签名出现异常），猜测是基于这个问题引入了接口默认方法，也就是default关键字。查看源码可以发现，ArrayList的超类Collection和Iterable分别添加了数个def ...</div></div></div><div class="recent-post-item"><div class="post_cover right"><a href="/posts/39831.html" title="微服务框架"><img class="post-bg" src= "/img/loading.gif" data-lazy-src="/img/background.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="微服务框架"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/39831.html" title="微服务框架">微服务框架</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2021-08-06T16:00:00.000Z" title="发表于 2021-08-07 00:00:00">2021-08-07</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/java/">java</a></span></div><div class="content">微服务框架[TOC]
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一、SpringCloud介绍1.1 微服务架构
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https://martinfowler.com/articles/microservices.html
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微服务架构提出者:马丁福勒
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简而言之，微服务体系结构[样式 1]是一种将单个应用程序开发为一组小型服务的方法，每个应用程序在自己的进程中运行，并与轻量级机制（通常是 HTTP 资源 API）通信。这些服务围绕业务功能构建，可通过全自动部署机制独立部署。这些服务的集中管理最少，可能以不同的编程语言编写，并使用不同的数据存储技术。
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1.2 SpringCloud介绍
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SpringCloud是微服务架构落地的一套技术栈
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SpringCloud中的大多数技术都是基于Netflix公司的技术进行第二次开发。
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1、SpringCloud的中文社区网站：http://springcloud.cn/
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2、SpringCloud的中文网 ：http://springcloud.cc/
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八个技术点：
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1、Eureka - 服务的注册与发现
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2、Robbn - 服务之间的负载均衡
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3、Feign - 服务之间的通讯
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