python查询数据库返回数据

python查询数据库返回数据主要运用到flask框架，pymysql 和 json‘插件’

#!/usr/bin/python
# -*- coding: UTF-8 -*- 

import pymysql
import flask,json
server=flask.Flask(__name__)

@server.route('/index',methods=['get','post'])
def create():
    db = pymysql.connect("localhost", "root", "数据库密码", "表名称")
    cur = db.cursor()
    sql = "SELECT * FROM EMPLOYER"

    cur.execute(sql)

    u = cur.fetchall()
    db.close()
    res={'msg':u,'msg_code':0}
    return json.dumps(res,ensure_ascii=False)

server.run(port=8888,debug=True,host='localhost')