将数据库中数据写入本地文件中

Jmeter做性能测试中，需要读取订单号的数据

从数据库中查询复制到文件中麻烦了；

直接用JDBC从数据库中读取，担心会影响实际测试结果，因此需要把数据手动复制到文件中

 python代码的实现：

import selenium
import requests
import json
from lxml import html
# from sgmllib import SGMLParser
from lxml import etree
import pymysql
import mysql_ok

phones=1591038300
filename='888mysql_yx.txt'

'''
从数据库中取数据写到本地文件中
'''

mydb = pymysql.connect(host="10.253.125.188", port=3306, user="root", passwd="sjroot", db="user", charset='utf8')
mycursor = mydb.cursor()

'''查询手机号码'''
# sql = "SELECT phone_tel FROM user.t_user_info where phone_tel like '%{}%';".format(phones)

'''查询用户id'''
# sql = "SELECT t.id,t.phone_tel FROM user.t_user_info t where t.phone_tel  like '%{}%';".format(phones)

'''查询授信订单号'''

sql = "SELECT a.app_id FROM bill_data.t_org_br_credit_info a left join user.t_user_info b on a.user_id=b.id " \
        "where a.user_id in (SELECT id FROM user.t_user_info t where "\
            "t.phone_tel like '%{}%' ) "\
                "order by phone_tel  ASC;".format(phones)


'''查询用信订单号'''



mycursor.execute(sql)
myresult =mycursor.fetchall()
fp = open('E:\\apache-jmeter-4.0\\test\\ziyingfiles\\{}'.format(filename),'w')
num_count=0
for x in myresult:
    num_count+=1
    print('phone_tel:', x[0], type(x))
    fp.write(x[0] + "\n")

fp.close()
mycursor.close()
mydb.close()

print('写入完成，共写入{0}条数据'.format(num_count))