使用装饰器减少try ...finally的重复使用

@util.try_except_bskgk
def added_user_handle(cur, search_time):
    added_user_sql = """

        select userName, FROM_UNIXTIME(createTime) as createTime
        from bskcommon.user
        where date(FROM_UNIXTIME(createTime)) = '%s' and userName != ''
        
    """%(search_time)

    cur.execute(added_user_sql)
    result = cur.fetchall()

    all_msg = {
        'result': util.mat_yes_added_user(result)
    }

    return all_msg

#util.py

def try_except_bsk(func):
    def wrap(*args):
        try:
            conn = linkbsk_db()
            cur = conn.cursor()
            result = func(cur, *args)
        except Exception as e:
            result = None

            log.logg().error(str(e), exc_info=True)

            print str(e)
        finally:
            cur.close()
            conn.close()
            return result

    return wrap

#不使用装饰器 直接调用函数 在作用上没啥区别

def try_except_bsk(func):
    def wrap(*args):
        try:
            conn = linkbsk_db()
            cur = conn.cursor()
　　　　　　　# return   func(cur, *args)   不能这样写 因为会有很多连接没有关闭

            result = func(cur, *args)
        except Exception as e:
            result = None　　　　　#必须要有的 没有这句， 假如运行错误的话 就会报错《finally部分的result没有赋值》

            log.logg().error(str(e), exc_info=True)　　　　#打印出错误的堆栈信息

            print str(e)
        finally:
            cur.close()
            conn.close()
            return result

    return wrap

def test_data(): test_sql = 'select * from user_info limit 1' data = db_queryall_params(util.linkbskgk_db(), test_sql) print data test_data()