node.js之node创建web服务器

1. Node网站服务器

1.2 开发过程中客户端和服务器端说明

在开发阶段，客户端和服务器端使用同一台电脑，即开发人员电脑。

本机域名：localhost
本地IP ：127.0.0.1

1.3创建web服务器

// 用于创建网站服务器的模块
const http = require('http');
// app对象就是网站服务器对象
const app = http.createServer();
// 处理请求参数模块
const querystring = require('querystring');
// 当客户端有请求来的时候
app.on('request', (req, res) => {
	// post参数是通过事件的方式接受的
	// data 当请求参数传递的时候出发data事件
	// end 当参数传递完成的时候出发end事件
<span class="token keyword">let</span> postParams <span class="token operator">=</span> <span class="token string">''</span><span class="token punctuation">;</span>

req<span class="token punctuation">.</span><span class="token function">on</span><span class="token punctuation">(</span><span class="token string">'data'</span><span class="token punctuation">,</span> params <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
	postParams <span class="token operator">+=</span> params<span class="token punctuation">;</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

req<span class="token punctuation">.</span><span class="token function">on</span><span class="token punctuation">(</span><span class="token string">'end'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
	console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>querystring<span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span>postParams<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

res<span class="token punctuation">.</span><span class="token function">end</span><span class="token punctuation">(</span><span class="token string">'ok'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

});
// 监听端口
app.listen(3000);
console.log(‘网站服务器启动成功’);

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28

                                </div>
            <link href="https://csdnimg.cn/release/phoenix/mdeditor/markdown_views-b6c3c6d139.css" rel="stylesheet">
                                            <div class="more-toolbox">
            <div class="left-toolbox">
                <ul class="toolbox-list">
                    
                    <li class="tool-item tool-active is-like "><a href="javascript:;"><svg class="icon" aria-hidden="true">
                        <use xlink:href="#csdnc-thumbsup"></use>
                    </svg><span class="name">点赞</span>
                    <span class="count"></span>
                    </a></li>
                    <li class="tool-item tool-active is-collection "><a href="javascript:;" data-report-click="{&quot;mod&quot;:&quot;popu_824&quot;}"><svg class="icon" aria-hidden="true">
                        <use xlink:href="#icon-csdnc-Collection-G"></use>
                    </svg><span class="name">收藏</span></a></li>
                    <li class="tool-item tool-active is-share"><a href="javascript:;" data-report-click="{&quot;mod&quot;:&quot;1582594662_002&quot;}"><svg class="icon" aria-hidden="true">
                        <use xlink:href="#icon-csdnc-fenxiang"></use>
                    </svg>分享</a></li>
                    <!--打赏开始-->
                                            <!--打赏结束-->
                                            <li class="tool-item tool-more">
                        <a>
                        <svg t="1575545411852" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="5717" xmlns:xlink="http://www.w3.org/1999/xlink" width="200" height="200"><defs><style type="text/css"></style></defs><path d="M179.176 499.222m-113.245 0a113.245 113.245 0 1 0 226.49 0 113.245 113.245 0 1 0-226.49 0Z" p-id="5718"></path><path d="M509.684 499.222m-113.245 0a113.245 113.245 0 1 0 226.49 0 113.245 113.245 0 1 0-226.49 0Z" p-id="5719"></path><path d="M846.175 499.222m-113.245 0a113.245 113.245 0 1 0 226.49 0 113.245 113.245 0 1 0-226.49 0Z" p-id="5720"></path></svg>
                        </a>
                        <ul class="more-box">
                            <li class="item"><a class="article-report">文章举报</a></li>
                        </ul>
                    </li>
                                        </ul>
            </div>
                        </div>
        <div class="person-messagebox">
            <div class="left-message"><a href="https://blog.csdn.net/xie_qi_chao">
                <img src="https://profile.csdnimg.cn/B/F/6/3_xie_qi_chao" class="avatar_pic" username="xie_qi_chao">
                                        <img src="https://g.csdnimg.cn/static/user-reg-year/1x/2.png" class="user-years">
                                </a></div>
            <div class="middle-message">
                                    <div class="title"><span class="tit"><a href="https://blog.csdn.net/xie_qi_chao" data-report-click="{&quot;mod&quot;:&quot;popu_379&quot;}" target="_blank">解启超</a></span>
                                        </div>
                <div class="text"><span>发布了317 篇原创文章</span> · <span>获赞 48</span> · <span>访问量 3万+</span></div>
            </div>
                            <div class="right-message">
                                        <a href="https://im.csdn.net/im/main.html?userName=xie_qi_chao" target="_blank" class="btn btn-sm btn-red-hollow bt-button personal-letter">私信
                    </a>
                                                        <a class="btn btn-sm attented bt-button personal-watch" data-report-click="{&quot;mod&quot;:&quot;popu_379&quot;}">已关注</a>
                                </div>
                        </div>
                </div>
</article>