https://hello-github-ui-github-io.onrender.com/tags/%E7%BD%91%E7%BB%9C%E7%BC%96%E7%A8%8B/Recent content in 网络编程 on QiYue's BlogHugo -- gohugo.iozh-cn&copy; 2026 QiYue's BlogTue, 22 Jun 2021 08:17:40 +0800https://hello-github-ui-github-io.onrender.com/posts/%E7%BD%91%E7%BB%9C%E7%BC%96%E7%A8%8B%E6%A8%A1%E5%BC%8F%E5%AD%A6%E4%B9%A0/Tue, 22 Jun 2021 08:17:40 +0800https://hello-github-ui-github-io.onrender.com/posts/%E7%BD%91%E7%BB%9C%E7%BC%96%E7%A8%8B%E6%A8%A1%E5%BC%8F%E5%AD%A6%E4%B9%A0/<div class="flex px-4 py-3 rounded-md shadow" style="background-color: #e63946" > <span class="pe-3 flex items-center" style="color: #1d3557" > <span class="relative block icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"> <path fill="currentColor" d="M159.3 5.4c7.8-7.3 19.9-7.2 27.7 .1c27.6 25.9 53.5 53.8 77.7 84c11-14.4 23.5-30.1 37-42.9c7.9-7.4 20.1-7.4 28 .1c34.6 33 63.9 76.6 84.5 118c20.3 40.8 33.8 82.5 33.8 111.9C448 404.2 348.2 512 224 512C98.4 512 0 404.1 0 276.5c0-38.4 17.8-85.3 45.4-131.7C73.3 97.7 112.7 48.6 159.3 5.4zM225.7 416c25.3 0 47.7-7 68.8-21c42.1-29.4 53.4-88.2 28.1-134.4c-2.8-5.6-5.6-11.2-9.8-16.8l-50.6 58.8s-81.4-103.6-87.1-110.6C133.1 243.8 112 273.2 112 306.8C112 375.4 162.6 416 225.7 416z"/></svg></span> </span> <span style="color: #f1faee" > <h1 class="relative group">Java共支持三种网络编程模式：BIO，NIO，AIO <div id="java共支持三种网络编程模式bionioaio" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#java%e5%85%b1%e6%94%af%e6%8c%81%e4%b8%89%e7%a7%8d%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e6%a8%a1%e5%bc%8fbionioaio" aria-label="锚点">#</a> </span> </h1> </span> </div> <div class="flex px-4 py-3 rounded-md shadow bg-primary-100 dark:bg-primary-900" > <span class="text-primary-400 pe-3 flex items-center" > <span class="relative block icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"/></svg> </span> </span> <span class="dark:text-neutral-300" > <h2 class="relative group">三种IO模式适用场景 <div id="三种io模式适用场景" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e4%b8%89%e7%a7%8dio%e6%a8%a1%e5%bc%8f%e9%80%82%e7%94%a8%e5%9c%ba%e6%99%af" aria-label="锚点">#</a> </span> </h2> </span> </div> <ul> <li>BIO方式适用于连接数目比较小且固定的架构，这种方式对服务器资源要求比较高，并发有局限性，JDK1.4以前是唯一的选择，好处是编码实现方式简单，且也容易理解。</li> <li>NIO方式适用于连接数目多且连接比较段的架构，比如聊天服务器，弹幕系统等，相比BIO编码较复杂，JDK1.4以后开始支持。</li> <li>AIO方式适用于连接数据多且连接较长的场景，比如相册服务器等，编程较复杂，JDK1.7才开始支持。目前好像并为得到广泛使用。</li> </ul> <h1 class="relative group">BIO(blocking I/O) 基本介绍 <div id="bioblocking-io-基本介绍" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#bioblocking-io-%e5%9f%ba%e6%9c%ac%e4%bb%8b%e7%bb%8d" aria-label="锚点">#</a> </span> </h1> <p>Java BIO是传统的Java io编程，相关的类和接口在java.io包中 Java BIO：同步阻塞，一个连接为一个线程，连接一个客户端就需要启动一个线程进行处理，如果连接未断开且未做任何事，会造会不必要的开销。可以通过线程池优化。 Java BIO：适用于连接数目较小且相对固定的架构，对服务器的要求比较高，对并发有局限性。JDK1.4以前唯一的选择，简单易理解。</p>