最原生Web Server

    1. const http = require('http');
    3. const server = http.createServer((req, res) => { 
    4.   const url = req.url,
    5.         method = req.method;
    7.   if(url === '/'){
    8.     req.setHeader('Content-Type', 'text/html');
    9.     res.write('<html>');
    10.     res.write('<header><title>请输入你的内容</title></header>');
    11.     res.write('<body><form action="/message" method="POST"><input type="text" name="message" /><button="submit">发送</button></form></body>');
    12.     res.write('</html>');
    13.     return res.end();
    14.   }
    15.   if(url === '/message' && method === 'POST'){
    16.     const body = [];
    17.     req.on('data', (chunk) => {
    18.         body.push(chunk);
    19.     });
    20.     req.on('end', () => {
    21.         const parsedBody = Buffer.concat(body).toString(),
    22.             message = parsedBody.split('=')[1];      
    23.        fs.writeFileSync('msg.txt', message);
    24.     });
    26.     res.statusCode = 302;
    27.     res.setHeader('Location', '/');
    28.     return res.end(); 
    29.   }
    30.   req.setHeader('Content-Type', 'text/html');
    31.   res.write('<html>');
    32.   res.write('<header><title>我的页面</title></header>');
    33.   res.write('<body><h1>你好, NodeJS!</h1></body>');
    34.   res.write('</html>');
    35.   res.end();
    36. });
    38. server.listen(3000);
    • req.url
    • req.method
    • req.headers