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How to use nodejs to implement routing function

青灯夜游forward: 2021-03-02 10:00:482037browse

This article will introduce to you how to use node to implement more complex application routing functions. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Related recommendations: "nodejs tutorial"

Structure

The project structure is as follows

The code is as follows

##Function

【router.js】

// 加载所需模块
var http = require(&#39;http&#39;);
var url = require(&#39;url&#39;);
var fs = require(&#39;fs&#39;);

var host = &#39;127.0.0.1&#39;;
var port = 8080;

http.createServer(function(req,res){
    var pathname = url.parse(req.url).pathname;
    console.log(&#39;Request for &#39; + pathname + &#39; received.&#39;);
        function showPaper(path,status){
            var content = fs.readFileSync(path);
            res.writeHead(status, { &#39;Content-Type&#39;: &#39;text/html;charset=utf-8&#39; });
            res.write(content);
            res.end();
        }
        switch(pathname){
        //&#39;首页&#39;
        case &#39;/&#39;:
        case &#39;/home&#39;:
            showPaper(&#39;./view/home.html&#39;,200);
            break;
        //&#39;about页&#39;
        case &#39;/about&#39;:
            showPaper(&#39;./view/about.html&#39;,200);   
            break;
        //&#39;404页&#39;
        default:
            showPaper(&#39;./view/404.html&#39;,404);
            break;                            
    }    
}).listen(port, host);

【404.html】

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
404    
</body>
</html>

【about.html】

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
about    
</body>
</html>

【home.html】

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
home    
</body>
</html>

Demo

##For more programming-related knowledge, please visit:

Introduction to Programming

! !

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