比较喜欢python的装饰器, 试了下一种用法，通过装饰器来传递sql，并执行返回结果
这个应用应该比较少
为了方便起见，直接使用了ironpython, 连接的mssql server
# -*- coding: utf-8 -*-
import clr
clr.AddReference('System.Data')
from System.Data import *
from functools import wraps
conn_str = "server=localhost;database=DB_TEST;uid=sa;password=sa2008"
def mssql(sql):
def handler_result(rs):
rst = []
while rs.Read():
rst.Add(rs[0])
return rst
def decorator(fn):
@wraps(fn)
def wrapper(*args, **kwargs):
TheConnection = SqlClient.SqlConnection(conn_str)
TheConnection.Open()
try:
MyAction = SqlClient.SqlCommand(sql, TheConnection)
MyReader = MyAction.ExecuteReader()
except Exception,ex:
raise AssertionError(ex)
rst_data = handler_result(MyReader)
kwargs["sql_rst"] = rst_data
result = fn(*args, **kwargs)
MyReader.Close()
TheConnection.Close()
return result
return wrapper
return decorator
@mssql(sql="Select getdate()")
def get_data(sql_rst=""):
print sql_rst[0]
get_data()
算是为了好玩吧，回看了下，可能实际用的机会不多
