为什么cur.execute（＆＃39;从信用卡中选择id，其中kp_order_id =＆＃34; A15268964292124586＆＃34;＆＃39;）为空？

Question

测试代码有效： 来自常见的导入mysqlDB

                 try{
                     JSONObject data = response.getJSONObject("entry");
                     JSONObject content = data.getJSONObject("content");
                     JSONObject mproperties = content.getJSONObject("mproperties");
                     JSONObject status = mProperties.getJSONObject("dStatus")
                     JSONObject charg = mProperties.getJSONObject("dCharg")
                     String statusText = status.getString("TEXT")
                     String chargText = charg.getString("TEXT")
                    }

                    }catch (JSONException e){
                        e.printStackTrace();
                    }

当我在python unittest中使用它时，返回值为null：

mysql = mysqlDB.MySQLCommand(****)
sqls = ['DELETE FROM `credit_queue_record`;', 'DELETE FROM `fund_queue_record`;', 'DELETE FROM `installment_bill`;', 'DELETE FROM `kporder_queue_record`;', 'DELETE FROM `order_info`;', 'DELETE FROM `transaction_record`;']
mysql.executeSql(sqls)

sql = 'select id from credit where kp_order_id = \"A15268964292124586\"'
print(mysql.querySql(sql))

查询sql：从credit中选择id，其中kp_order_id =＆＃34; A15268964292124586＆＃34; 无

˚F

失败：test_one2one（主要 .one2oneTest）

追踪（最近一次通话）：   在test_one2one中输入文件＆＃34; one2one.py＆＃34;，第55行     self.assertIsNotNone（id，msg =＆＃39; id不应该为空＆＃39;） AssertionError：意外地无：id不应该为空

class querySql（）是：     def querySql（self，sql）：         print（＆＃34; query sql：＆＃34; + sql）

class one2oneTest(unittest.TestCase):
    def setUp(self):    

        #
        # empty the tables
        #
        self.mysql = mysqlDB.MySQLCommand(*********)

        sqls = ['DELETE FROM `credit`;', 'DELETE FROM `credit_queue_record`;', 'DELETE FROM `fund_queue_record`;', 'DELETE FROM `installment_bill`;', 'DELETE FROM `kporder_queue_record`;', 'DELETE FROM `order_info`;', 'DELETE FROM `transaction_record`;']
        self.mysql.executeSql(sqls)

    def test_one2one(self):
        sql = 'select id from credit where kp_order_id = \"A15268964292124586\"'
        id = self.mysql.querySql(sql)
        self.assertIsNotNone(id, msg='id 不应该为空')

Answer 1

在查询之前添加time.sleep（5）。也许我很愚蠢。