How to implement simple web server functions in nodejs-JS Tutorial-php.cn

How to implement simple web server functions in nodejs

小云云

Release： 2018-03-16 09:11:20

Original

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This article mainly introduces the simple web server functions implemented by nodejs, and analyzes the related monitoring, response, data processing and other operating techniques of nodejs to build a web server in the form of examples. Friends who need it can refer to it. I hope it can help everyone. .

Front-end js code:

<script src="jquery-1.12.1.js"></script>
<script type="text/javascript">
 $.ajax({
  url:&#39;http://192.168.0.114:3000&#39;,//服务器地址
  type:&#39;post&#39;,
  timeout:30,
  dataType:&#39;json&#39;,
  data:{
    "username":username,
    "password":password
  },
  success:function(res){
    console.log(JSON.stringify(res));
  },
  err:function(err){
    alert(err);
  }
});

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nodejs code:

var http = require(&#39;http&#39;);
var url = require(&#39;url&#39;);
var qs = require(&#39;querystring&#39;);
http.createServer(function(req,res){
  res.writeHead(200,{&#39;Content-Type&#39;:&#39;text/plain;charset=UTF-8&#39;,&#39;Access-Control-Allow-origin&#39;:&#39;*&#39;});
  if(req.method.toUpperCase() == &#39;GET&#39;){
    var query = url.parse(req.url, true).query;// 接受的数据
    res.end(JSON.stringify(query));
  }else if(req.method.toUpperCase() == &#39;POST&#39;){
    var postData = &#39;&#39;;
    req.on(&#39;data&#39;,function(data){
      postData += data; //接受的数据
    });
    req.on(&#39;end&#39;,function(){
      var query = qs.parse(postData);
      res.end(JSON.stringify(query));//返回的数据
    });
  }
}).listen(&#39;3000&#39;,function(){
  console.log(&#39;this is callback&#39;);
});
console.log(&#39;server is running&#39;);

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Related recommendations:

Tutorial on how to build a simple web server using node.js

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