python连接本地sql server

1.封装数据库连接类

# -*- coding:utf-8 -*-

import pymssql

class MSSQL:
    def __init__(self,host,user,pwd,db):
        self.host = host
        self.user = user
        self.pwd = pwd
        self.db = db

    def __GetConnect(self):
        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")
        # self.conn = pymssql.connect(host='localhost',user='sa',password='645713039', database='PythonWebServerDemo',charset="utf8")
        cur = self.conn.cursor()
        if not cur:
            raise(NameError,"连接数据库失败")
        else:
            print("连接数据库成功")
            return cur

    def ExecQuery(self,sql):
        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):
        cur = self.__GetConnect()
        cur.execute(sql)
        self.conn.commit()
        self.conn.close()

2. 类的调用

ms = MSSQL(host='localhost',user='sa',pwd='645713039',db='PythonWebServerDemo')
reslist = ms.ExecQuery("select * from mytable01")
for i in reslist:
    print (i)

newsql="insert into mytable01 values(%d, 'fafsdf')"%(len(reslist) + 1)
ms.ExecNonQuery(newsql.encode('utf-8'))

 

注意点：

先要安装pymssql，easy_install pymssql