Python连接oracle类笔记

版本：Python3.3

import cx_Oracle
class dao:
    __conn=None
    __crusor=None
    def get_conn(self):
        host = 'localhost' 
        port = '1521' 
        dbase = 'testsid' 
        login = 'scott' 
        passwrd = 'tigger' 
        dsn = cx_Oracle.makedsn(host, port, dbase) 
        print (dsn)
        conn = cx_Oracle.connect(login, passwrd, dsn) 
        self.__conn=conn
        return
    def get_cursor(self):
        self.__cursor=self.__conn.cursor ()
    def exec(self,sql):
    
        self.__cursor.execute (sql)
        result = self.__cursor.fetchall ()
      
        return result
    def close_crusor(self):
        self.__cursor.close ()
    def close_conn(self):
        self.__conn.close ()

测试：

from simplecrawl.db import dao
ins=dao()
ins.get_conn()
ins.get_cursor()

result=ins.exec("select * from emp t")

for row in result: 
    print (row)
print ("=============")
result=ins.exec("select * from emp t")

for row in result: 
    print (row)
ins.close_crusor()
ins.close_conn()