python 使用pymssql连接sql server数据库

#coding=utf-8
#!/usr/bin/env python
#-------------------------------------------------------------------------------
# Name: pymssqlTest.py
# Purpose: 测试 pymssql库,该库到这里下载:http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql
#
# Author: scott
#
# Created: 04/02/2012
#-------------------------------------------------------------------------------
import pymssql
class MSSQL:
"""
    对pymssql的简单封装
    pymssql库,该库到这里下载:http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql
    使用该库时,需要在Sql Server Configuration Manager里面将TCP/IP协议开启
    用法:
    """
def __init__(self,host,user,pwd,db):
self.host = host
self.user = user
self.pwd = pwd
self.db = db
def __GetConnect(self):
"""
        得到连接信息
        返回: conn.cursor()
        """
if not self.db:
raise(NameError,"没有设置数据库信息")
self.conn =pymssql.connect(host=self.host,user=self.user,password=self.pwd,database=self.db,charset="utf8")
        cur = self.conn.cursor()
if not cur:
raise(NameError,"连接数据库失败")
else:
return cur
def ExecQuery(self,sql):
"""
        执行查询语句
        返回的是一个包含tuple的list,list的元素是记录行,tuple的元素是每行记录的字段
        调用示例:
                ms = MSSQL(host="localhost",user="sa",pwd="123456",db="PythonWeiboStatistics")
                resList = ms.ExecQuery("SELECT id,NickName FROM WeiBoUser")
                for (id,NickName) in resList:
                    print str(id),NickName
        """
        cur = self.__GetConnect()
        cur.execute(sql)
        resList = cur.fetchall()
#查询完毕后必须关闭连接
self.conn.close()
return resList
def ExecNonQuery(self,sql):
"""
        执行非查询语句
        调用示例:
            cur = self.__GetConnect()
            cur.execute(sql)
            self.conn.commit()
            self.conn.close()
        """
        cur = self.__GetConnect()
        cur.execute(sql)
self.conn.commit()
self.conn.close()
def main():
## ms = MSSQL(host="localhost",user="sa",pwd="123456",db="PythonWeiboStatistics")
## #返回的是一个包含tuple的list,list的元素是记录行,tuple的元素是每行记录的字段
## ms.ExecNonQuery("insert into WeiBoUser values('2','3')")
    ms = MSSQL(host="localhost",user="sa",pwd="123456",db="PythonWeiboStatistics")
    resList = ms.ExecQuery("SELECT id,weibocontent FROM WeiBo")
for (id,weibocontent) in resList:
print str(weibocontent).decode("utf8")
if __name__ == '__main__':
    main()

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