import pymysql
import json
import os
#科室为中医皮肤科用户10799
#select * from t_user_account ac LEFT JOIN t_user_hospital_info hos on ac.user_id=hos.user_id where hos.department_id =100045
#经典版病历夹信鸽token 6311
#select * from device where createdTime<='2020-04-15 20:43:20' and appName = 'medchart'
#需求是把6311 token绑到10799用户中
token_find_sql = 'select token from device where createdTime<="2020-04-15 20:43:20" and appName = "medchart" and status=1'
users_find_sql = 'select * from t_user_account ac LEFT JOIN t_user_hospital_info hos on ac.user_id=hos.user_id where hos.department_id =100045'
user_find_sql = 'select * from device where appName = "medchart" and userId = \"%s\" and status=1'
upd_sql = 'update device set userId = \"%s\" where token = \"%s\"'
#数据库信息
token_db = {略}
uas_db = {略}
#数据库连接
def db_con(db):
con = pymysql.connect(**db) #当db是字典类型时,以关键字参数类型传参
return con
#数据库连接关闭
def db_close(con):
con.close()
#查找所有内容
def fetch_all(con,find_sql):
cursor = con.cursor()
cursor.execute(find_sql)
all_found = cursor.fetchall()
return all_found
#更新表(绑定找到的userid和token)
def update_db(con,upd_sql):
cursor = con.cursor()
cursor.execute(upd_sql)
updated = con.commit()
return updated
#保存日志
if os.path.exists('log.txt'):
os.remove('log.txt')
def log(ids):
with open('log.txt','a') as f:
f.writelines(str(ids)+'\n')
if __name__=='__main__':
tokco = db_con(token_db)
uasco = db_con(uas_db)
tokens = fetch_all(tokco,token_find_sql)
users = fetch_all(uasco,users_find_sql)
#useid绑定前,查找device表是否有userid,有则不绑定,无则绑定
hasbound = 0
bind = 0
for i in range(0,len(tokens)):
print(users[i][0])
print(tokens[i][0])
sql = user_find_sql % (users[i][0])
print(sql)
if fetch_all(tokco,sql):
hasbound += 1
else:
bind +=1
upd = upd_sql % (users[i][0], tokens[i][0])
print(upd)
update_db(tokco,upd)
ids = '已绑定userid:%s和token:%s' % (users[i][0],tokens[i][0])
print(ids)
log(ids)
#绑定后再次查找数据库,核对绑定数量
failcount = 0
for i in range(0,len(tokens)):
sql = user_find_sql % (users[i][0])
if users[i][0] in fetch_all(tokco, sql):
continue
else:
failcount +=1
ids = '绑定失败userid%s' % (users[i][0])
log(ids)
ids = '此次共计绑定token%s个,绑定失败%s个,原有已存在token%s个' % (bind,failcount,hasbound)
log(ids)
db_close(tokco)
db_close(uasco)
遇到的问题及总结:
![](https://img.haomeiwen.com/i7293472/2a7db3672207a4a9.png)
def fun(a,b,*c,**d): #*args表示位置参数,可以是任何多个无名参数,*args 会将参数打包成tuple给函数体调用;**kwargs表示关键字参数,它将参数打包成dict给函数调用。
print(a);
print(b);
print(c);
print(d);
def function(**kwargs):
print( kwargs, type(kwargs))
if __name__ == '__main__':
fun(2,3,'haha','hehe','hoho',x=1,y=2) # 输出2
# 输出3
# 输出('haha', 'hehe', 'hoho') 位置参数,是元组
#输出 {'y': 2, 'x': 1} 关键字参数,是字典
function(a=2) #输出 {'a':2} <class 'dict'>
总结如下:
-
function(name='xx',color='yy')
可以用 字典打包参数传给函数,传参类型是(两个星号)kwargs
dicname={'name':'xx','color'='yy'}
function(**dicname) 和 function(name='xx',color='yy')作用相同 -
数据库查出来的数据类型是元组,利用角标获取到元素和sql字符串拼接时可以不用转格式,%后面直接跟元素
-
sql语句传参引用元素时注意变量值要加双引号,注意双引号要转义
-
在循环里不要同名变量拼接/引用后再次赋值,如下图user_find_sql 再次循环会产生格式问题,怀疑是把上个循环内容累加了,修改了变量名解决了
![](https://img.haomeiwen.com/i7293472/7d5ca2d481226e25.png)
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