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Detailed explanation of nodeJS implementation of routing function examples

零下一度
零下一度Original
2017-06-26 11:31:271550browse

Previous words

This article will use NodeJS to implement the routing function of more complex applications

Structure

The project structure is as follows

The code is as follows

Function

[router.js]

// 加载所需模块var http = require('http');var url = require('url');var fs = require('fs');var host = '127.0.0.1';var port = 8080;

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

【404.html】

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

【about.html】

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

【home.html】

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

Demo

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