python使用pymysql查询结果返回json

python使用pymysql查询结果返回json

pymysql转json关键参数 cursorclass=cursors.DictCursor

案例

import pymysql
from pymysql import cursors


def sql_json():
    con = pymysql.connect(host=‘127.0.0.1’, user='oo', password='123456', port=3306,db='myuser',cursorclass=cursors.DictCursor)
    cur = con.cursor()
    sql = "select id,username from user_info "
    cur.execute(sql)
    all_obj = cur.fetchall()
    print(all_obj, '\n', type(all_obj[0]))
    cur.close()
    con.close()


if __name__ == '__main__':
    sql_json()

返回案例

[{'id': 1, 'username': '123'}, {'id': 2, 'username': 'hou'}, {'id': 3, 'username': 'lihuidu'}, {'id': 4, 'username': 'test1'}, {'id': 5, 'username': 'wangyameng'}, {'id': 6, 'username': 'ljh'}] 
 

无cursorclass=cursors.DictCursor 参数返回案例

((1, '123'), (2, 'hou'), (3, 'lihuidu'), (4, 'test1'), (5, 'wangyameng'), (6, 'ljh'))