node.js之node创建web服务器

其他 2020-03-23 09:37:32 阅读次数: 0

1. Node网站服务器

在这里插入图片描述

在这里插入图片描述

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。

在这里插入图片描述
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’);

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1. Node网站服务器

在这里插入图片描述

在这里插入图片描述

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。

在这里插入图片描述
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>

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