原生态Ajax提交表单：需要借助XMLHttpRequest对象的open，要收通过post发送请求还要setRequsetHeader,然后把数据发送给后端，代码如下
目录结构
index.py代码
1 #index.py
2 #!/usr/bin/env python
3 #-*- coding:utf-8 -*-
4 import tornado.web
5 import tornado.ioloop
6 class indexHandler(tornado.web.RequestHandler):
7 def get(self, *args, **kwargs):
8 # ff = self.get_argument(‘user‘,None)
9 # print(ff)
10 self.render(‘login.html‘)
11 def post(self, *args, **kwargs):
12 dic = {‘status‘: True,‘message‘:‘‘}
13 if (self.get_argument(‘username‘) == ‘alex‘ and
14 self.get_argument(‘password‘) == ‘123‘):
15 pass
16 else:
17 dic[‘status‘] = False
18 dic[‘message‘] = ‘账号或密码不对‘
19 import json
20 self.write(json.dumps(dic))
21
22 settings ={‘template_path‘:‘view‘,
23 ‘static_path‘:‘static‘
24 }
25 app = tornado.web.Application([(r"/login",indexHandler)
26 ],**settings)
27 if __name__ == "__main__":
28 app.listen(‘8000‘)
29 tornado.ioloop.IOLoop.instance().start()
login.html代码
1 <!--login.html-->
2 <!DOCTYPE html>
3 <html lang="en">
4 <head>
5 <meta charset="UTF-8">
6 <title>Title</title>
7 </head>
8 <body>
9
10 <input id="user" type="text" name="username">
11 <input id="pwd" type="password" name="password">
12 <!--<input type="checkbox">7天免登陆-->
13 <input type="button" value="登陆" onclick="SubmitForm();">
14
15 <script src="static/jquery-1.8.2.js"></script>
16 <script>
17 // xhr = null;
18 // function SubmitForm() {
19 // xhr = new XMLHttpRequest();
20 // xhr.open(‘POST‘,‘/login‘,true);
21 // xhr.onreadystatechange = func;
22 // xhr.setRequestHeader("CONTENT-TYPE", "application/x-www-form-urlencoded;")
23 // xhr.send("username="+document.getElementById(‘user‘).value+";password="+document.getElementById(‘pwd‘).value)
24 // }
25 // function func() {
26 // if (xhr.readyState == 4){
27 // console.log(xhr.responseText);
28 // ret = JSON.parse(xhr.responseText)
29 // alert(ret)
30 // alert(ret.status)
31 // alert(ret.message)
32 // }
33 // }
34
35 $.post(‘/login‘,{‘username‘:‘alex‘,‘password‘:‘1233‘},function (callback) {
36 alert(callback)
37 })
38 </script>
39 </body>
40 </html>
原文地址：https://www.cnblogs.com/wenxianfeng/p/10366639.html
时间： 2024-08-10 16:16:24