详解Linux环境下NodeJS的安装配置（HelloWorld）
<p>最简单的环境安装，测试helloworld。给初学者！！</p>
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安装脚本，请仔细阅读逐行执行：</p>
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<code class="bash preprocessor bold">#!/bin/bash</code>
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<code class="bash comments">#检查是否已经安装</code>
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<code class="bash plain">rpm -qa | </code><code class="bash functions">grep</code> <code class="bash plain">python</code>
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<code class="bash comments">#查版本</code>
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<code class="bash plain">python</code>
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<code class="bash comments">#最好是重新安装 Python推荐版本（ >= v2.5.0 & < 3.0.0 ），否则影响nodejs运行</code>
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<code class="bash comments">#进入安装目录</code>
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<code class="bash functions">cd</code> <code class="bash plain">/usr/local/</code>
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<code class="bash comments">#删除原有安装</code>
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<code class="bash functions">rm</code> <code class="bash plain">-rf node</code>
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<code class="bash functions">rm</code> <code class="bash plain">-rf node-v0.10.29-linux-x64</code>
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<code class="bash comments">#解压压缩包</code>
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<code class="bash functions">tar</code> <code class="bash plain">-zxv -f node-v0.10.29-linux-x64.</code><code class="bash functions">tar</code><code class="bash plain">.gz</code>
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<code class="bash comments">#修改目录</code>
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<code class="bash functions">mv</code> <code class="bash plain">node-v0.10.29-linux-x64 node</code>
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<code class="bash comments">#添加环境变量并使之生效，内容如下：</code>
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<code class="bash functions">export</code> <code class="bash plain">PATH=</code><code class="bash plain">/usr/local/python/bin</code><code class="bash plain">:</code><code class="bash plain">/usr/local/node/bin</code><code class="bash plain">:$PATH</code>
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<code class="bash comments">#测试命令</code>
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<code class="bash plain">node -</code><code class="bash functions">v</code>
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<code class="bash comments">#--------------------测试----------------------------</code>
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<code class="bash comments">#创建nodejs项目目录</code>
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<code class="bash functions">mkdir</code> <code class="bash plain">-p </code><code class="bash plain">/usr/local/nodejs/</code>
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<code class="bash comments">#创建hello.js文件</code>
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<code class="bash functions">vi</code> <code class="bash plain">/usr/local/nodejs/hello</code><code class="bash plain">.js</code>
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<code class="bash comments">#内容如下：</code>
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<code class="bash plain">var http = require(</code><code class="bash string">"http"</code><code class="bash plain">);</code>
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<code class="bash plain">http.createServer(</code><code class="bash keyword">function</code><code class="bash plain">(request, response) {</code>
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<code class="bash spaces"> </code><code class="bash plain">response.writeHead(200, {</code>
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<code class="bash spaces"> </code><code class="bash string">"Content-Type"</code> <code class="bash plain">: </code><code class="bash string">"text/plain"</code> <code class="bash plain">//</code> <code class="bash plain">输出类型</code>
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<code class="bash spaces"> </code><code class="bash plain">});</code>
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<code class="bash spaces"> </code><code class="bash plain">response.write(</code><code class="bash string">"Hello World"</code><code class="bash plain">);</code><code class="bash plain">//</code> <code class="bash plain">页面输出</code>
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<code class="bash spaces"> </code><code class="bash plain">response.end();</code>
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<code class="bash plain">}).listen(8100); </code><code class="bash plain">//</code> <code class="bash plain">监听端口号</code>
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<code class="bash plain">console.log(</code><code class="bash string">"nodejs start listen 8102 port!"</code><code class="bash plain">);</code>
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<code class="bash comments">#后台运行</code>
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<code class="bash plain">node </code><code class="bash plain">/usr/local/nodejs/hello</code><code class="bash plain">.js &</code>
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<code class="bash comments">#浏览器访问</code>
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<code class="bash plain">http:</code><code class="bash plain">//192</code><code class="bash plain">.168.2.2:8100/</code>
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访问页面，出现“Hello World”字样，说明安装测试成功。</p>
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p>
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原文链接：http://www.cnblogs.com/zhoulf/p/4042888.html</p>
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