node程式執行問題...

node

fredfu5431 2020-11-11 18:05:40 ‧ 971 瀏覽

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各位前輩好:
我寫了一段node程式如下:

var http = require('http');
var server = http.createServer(function (req, res) {
  switch (req.url) {
    case '/':
      res.writeHead(200, { 'Content-Type': 'text-html' });
      res.write('<html><body>This is Home Page !</body></html>');
      console.log('This is Home Page ');
      res.end();
      break;
    case '/student':
      res.writeHead(200, { 'Content-Type': 'text/html' });
      res.write('<html><body>This is Student Page !</body></html>');
      console.log('This is Student Page !');
      res.end();
      break;
    case '/admin':
      res.writeHead(200, { 'Content-Type': 'text/html' });
      res.write('<html><body>This is Admin Page !</body></html>');
      console.log('This is Admin Page !');
      res.end();
      break;
    default:
      console.log('This is an invalid req !');
      res.end('This is an invalid request !');
      break;
  }
});
server.listen(5000);

當在browser輸入localhost:5000/student 在server端出現:
This is Student Page!
This is an invalid req !

想請問為何會執行default裏的程式? 謝謝.