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python实现通过flask和前端进行数据收发

yipeiwu_com6年前 (2020-03-06)Python基础

python代码：

# -*- coding: utf-8 -*-
from flask import Flask,jsonify,render_template,request
import json
 
app = Flask(__name__)#实例化app对象
 
testInfo = {}
num=10
 
@app.route('/test_post/nn',methods=['GET','POST'])#路由
def test_post():
  global num
  '''receive data'''
  recv_data = request.get_data()
  if recv_data:
    print recv_data
    json_re = json.loads(recv_data)
    print json_re['email']
    print json_re['phone']
  else:
    print("receive data is empty")
 
  '''send data'''
  num = num + 1
  testInfo['name'] = 'xiaoming'
  testInfo['age'] = num
  return json.dumps(testInfo)
 
@app.route('/')
def hello_world():
  return 'Hello World!'
 
@app.route('/index')
def index():
  return render_template('index.html')
 
 
if __name__ == '__main__':
  app.run(host='0.0.0.0',#任何ip都可以访问
      port=7777,#端口
      debug=True
      )

前端代码：

<!DOCTYPE html>
<html lang="en">
 
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>echarts</title>
  <style type="text/css">
    html,
    body {
      width: 100%;
      height: 100%;
    }
 
    body {
      margin: 0px;
      padding: 0px
    }
 
    div {
      float: left;
    }
 
    #container {
      width: 50%;
      height: 100%;
    }
 
    #info {
      padding: 10px 20px;
    }
  </style>
</head>
 
<body>
  <div id="container"></div>
  <div id="info">数据展示：</div>
  <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.js"></script>
 <script>
    var student = {
      email:'123456',
      phone:'121421421',
    };
 
    var senddata = JSON.stringify(student);
 
    console.log(senddata)
 
    setInterval(function query() {
      $.ajax({
        url: "test_post/nn",
        type: "POST",
        data: senddata,
        dataType: "json",
        success: function (data) {
          console.log(data)
        }
      })
    }, 1000);
 
 
 </script>
  
</body>
 
</html>

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