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>