为什么可空字段在此 WSO2 DSS INSERT 查询中不起作用？

Question

我正在研究 WSO2 EI 版本 6.1.1 我发现一个大问题试图实现一个简单的 DSS INSERT 查询必须将新记录插入 table 允许某些字段为 null.

这是我的 DSS 与此 spwcific 查询定义和相关操作相关的代码：

<query id="insert_user" returnGeneratedKeys="true" useConfig="user_db">
    <sql>
        insert into User(
            application_UID,
            country_id,
            localization_id,
            local_user_id,
            isActive,
            isFullProfile,
            birth_date,
            gender,
            prefix
            )
        values(
            :application_UID,
            :country_id,
            :localization_id,
            :local_user_id,
            :is_active,
            :is_full_profile,
            :birth_date,
            :gender,
            :prefix
        )
    </sql>
    <result element="GeneratedKeys" rowName="Entry" useColumnNumbers="true">
        <element column="1" name="ID" xsdType="integer"/>
    </result>
    <param name="application_UID" sqlType="STRING"/>
    <param name="country_id" sqlType="BIGINT"/>
    <param name="localization_id" sqlType="BIGINT"/>
    <param name="local_user_id" sqlType="BIGINT"/>
    <param name="is_active" sqlType="BIT"/>
    <param name="is_full_profile" sqlType="BIT"/>
    <param defaultValue="#{NULL}" name="birth_date" sqlType="STRING"/>
    <param defaultValue="#{NULL}" name="gender" sqlType="STRING"/>
    <param defaultValue="#{NULL}" name="prefix" sqlType="STRING"/>
</query>

<operation name="AddUser">
    <call-query href="insert_user">
        <with-param name="application_UID" query-param="application_UID"/>
        <with-param name="country_id" query-param="country_id"/>
        <with-param name="localization_id" query-param="localization_id"/>
        <with-param name="local_user_id" query-param="local_user_id"/>
        <with-param name="is_active" query-param="is_active"/>
        <with-param name="is_full_profile" query-param="is_full_profile"/>
        <with-param name="birth_date" query-param="birth_date"/>
        <with-param name="gender" query-param="gender"/>
        <with-param name="prefix" query-param="prefix"/>
    </call-query>
</operation>

最后 3 个字段在我的数据库中是 nullable，如您所见，我以这种方式定义了这些字段（我使用了 defaultValue="#{ NULL}" 使这些字段可为空）:

<param defaultValue="#{NULL}" name="birth_date" sqlType="STRING"/>
<param defaultValue="#{NULL}" name="gender" sqlType="STRING"/>
<param defaultValue="#{NULL}" name="prefix" sqlType="STRING"/>

问题是，如果我进入试用工具并执行此查询：

<body>
   <p:AddUser xmlns:p="http://ws.wso2.org/dataservice">
      <!--Exactly 1 occurrence-->
      <p:application_UID>xxx</p:application_UID>
      <!--Exactly 1 occurrence-->
      <p:country_id>1</p:country_id>
      <!--Exactly 1 occurrence-->
      <p:localization_id>1</p:localization_id>
      <!--Exactly 1 occurrence-->
      <p:local_user_id>1</p:local_user_id>
      <!--Exactly 1 occurrence-->
      <p:is_active>true</p:is_active>
      <!--Exactly 1 occurrence-->
      <p:is_full_profile>true</p:is_full_profile>
      <!--Exactly 1 occurrence-->
      <p:birth_date>?</p:birth_date>
      <!--Exactly 1 occurrence-->
      <p:gender>?</p:gender>
      <!--Exactly 1 occurrence-->
      <p:prefix>?</p:prefix>
   </p:AddUser>
</body>

（如您所见，我没有设置最后 3 个可为空字段的值）我在 Try It 工具的输出中收到此错误消息：

<soapenv:Fault xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">
   <soapenv:Code>
      <soapenv:Value>axis2ns393:DATABASE_ERROR</soapenv:Value>
   </soapenv:Code>
   <soapenv:Reason>
      <soapenv:Text xml:lang="en-US">DS Code: DATABASE_ERROR Nested Exception:- javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processPreNormalQuery': Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1 DS Code: DATABASE_ERROR Source Data Service:- Name: user-dss Location: /opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs Description: N/A Default Namespace: http://ws.wso2.org/dataservice Current Request Name: AddUser Current Params: {local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1} Nested Exception:- com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1  </soapenv:Text>
   </soapenv:Reason>
   <soapenv:Detail>
      <axis2ns392:DataServiceFault xmlns:axis2ns392="http://ws.wso2.org/dataservice">
         <axis2ns392:current_params>{local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1}</axis2ns392:current_params>
         <axis2ns392:source_data_service>
            <axis2ns392:data_service_name>user-dss</axis2ns392:data_service_name>
            <axis2ns392:description>N/A</axis2ns392:description>
            <axis2ns392:location>/opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs</axis2ns392:location>
            <axis2ns392:default_namespace>http://ws.wso2.org/dataservice</axis2ns392:default_namespace>
         </axis2ns392:source_data_service>
         <axis2ns392:ds_code>DATABASE_ERROR</axis2ns392:ds_code>
         <axis2ns392:nested_exception>com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1</axis2ns392:nested_exception>
         <axis2ns392:current_request_name>AddUser</axis2ns392:current_request_name>
      </axis2ns392:DataServiceFault>
   </soapenv:Detail>
</soapenv:Fault>

在我的 Carbon 日志中我有这样的东西：

TID: [-1234] [] [2018-04-25 16:57:13,853] ERROR {org.wso2.carbon.dataservices.core.DBInOutMessageReceiver} -  Error in in-out message receiver {org.wso2.carbon.dataservices.core.DBInOutMessageReceiver}
DS Code: DATABASE_ERROR
Nested Exception:-
javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processPreNormalQuery': Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1
DS Code: DATABASE_ERROR
Source Data Service:-
Name: user-dss
Location: /opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: AddUser
Current Params: {local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1}
Nested Exception:-
com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1


        at org.wso2.carbon.dataservices.core.dispatch.SingleDataServiceRequest.processRequest(SingleDataServiceRequest.java:75)
        at org.wso2.carbon.dataservices.core.dispatch.DataServiceRequest.dispatch(DataServiceRequest.java:357)
        at org.wso2.carbon.dataservices.core.DataServiceProcessor.dispatch(DataServiceProcessor.java:41)
        at org.wso2.carbon.dataservices.core.DBInOutMessageReceiver.invokeBusinessLogic(DBInOutMessageReceiver.java:57)
        at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:42)
        at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
        at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:404)
        at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:151)
        at org.apache.axis2.transport.base.threads.NativeWorkerPool.run(NativeWorkerPool.java:172)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processPreNormalQuery': Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1
DS Code: DATABASE_ERROR
Source Data Service:-
Name: user-dss
Location: /opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: AddUser
Current Params: {local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1}
Nested Exception:-
com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1

        at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:102)
        at org.wso2.carbon.dataservices.core.dispatch.SingleDataServiceRequest.processRequest(SingleDataServiceRequest.java:73)
        ... 12 more
TID: [-1234] [] [2018-04-25 16:57:13,855] ERROR {org.apache.synapse.transport.passthru.ServerWorker} -  Error processing POST request for : /services/user-dss.SOAP12Endpoint/AddUser {org.apache.synapse.transport.passthru.ServerWorker}
org.apache.axis2.AxisFault: DS Code: DATABASE_ERROR
Nested Exception:-
javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processPreNormalQuery': Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1
DS Code: DATABASE_ERROR
Source Data Service:-
Name: user-dss
Location: /opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: AddUser
Current Params: {local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1}
Nested Exception:-
com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1


        at org.wso2.carbon.dataservices.core.DBUtils.createAxisFault(DBUtils.java:740)
        at org.wso2.carbon.dataservices.core.DBInOutMessageReceiver.invokeBusinessLogic(DBInOutMessageReceiver.java:67)
        at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:42)
        at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
        at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:404)
        at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:151)
        at org.apache.axis2.transport.base.threads.NativeWorkerPool.run(NativeWorkerPool.java:172)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processPreNormalQuery': Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1
DS Code: DATABASE_ERROR
Source Data Service:-
Name: user-dss
Location: /opt/wso2/wso2ei/wso2/tmp/carbonapps/-1234/1524668046564userreg-cap_1.0.0.car/user-dss_1.0.0/user-dss-1.0.0.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: AddUser
Current Params: {local_user_id=1, is_active=true, gender=?, prefix=?, birth_date=?, is_full_profile=true, application_UID=xxx, country_id=1, localization_id=1}
Nested Exception:-
com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '?' for column 'birth_date' at row 1

        at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:102)
        at org.wso2.carbon.dataservices.core.dispatch.SingleDataServiceRequest.processRequest(SingleDataServiceRequest.java:73)
        at org.wso2.carbon.dataservices.core.dispatch.DataServiceRequest.dispatch(DataServiceRequest.java:357)
        at org.wso2.carbon.dataservices.core.DataServiceProcessor.dispatch(DataServiceProcessor.java:41)
        at org.wso2.carbon.dataservices.core.DBInOutMessageReceiver.invokeBusinessLogic(DBInOutMessageReceiver.java:57)
        ... 9 more

如果我使用这样的查询会发生类似的错误：

<body>
   <p:AddUser xmlns:p="http://ws.wso2.org/dataservice">
      <!--Exactly 1 occurrence-->
      <p:application_UID>xxx</p:application_UID>
      <!--Exactly 1 occurrence-->
      <p:country_id>1</p:country_id>
      <!--Exactly 1 occurrence-->
      <p:localization_id>1</p:localization_id>
      <!--Exactly 1 occurrence-->
      <p:local_user_id>1</p:local_user_id>
      <!--Exactly 1 occurrence-->
      <p:is_active>true</p:is_active>
      <!--Exactly 1 occurrence-->
      <p:is_full_profile>true</p:is_full_profile>
      <!--Exactly 1 occurrence-->
      <p:birth_date></p:birth_date>
      <!--Exactly 1 occurrence-->
      <p:gender></p:gender>
      <!--Exactly 1 occurrence-->
      <p:prefix></p:prefix>
   </p:AddUser>
</body>

也试过这种方式得到同样的问题：

<body>
   <p:AddUser xmlns:p="http://ws.wso2.org/dataservice">
      <!--Exactly 1 occurrence-->
      <p:application_UID>xxx</p:application_UID>
      <!--Exactly 1 occurrence-->
      <p:country_id>1</p:country_id>
      <!--Exactly 1 occurrence-->
      <p:localization_id>1</p:localization_id>
      <!--Exactly 1 occurrence-->
      <p:local_user_id>1</p:local_user_id>
      <!--Exactly 1 occurrence-->
      <p:is_active>true</p:is_active>
      <!--Exactly 1 occurrence-->
      <p:is_full_profile>true</p:is_full_profile>
      <!--Exactly 1 occurrence-->
      <p:birth_date>null</p:birth_date>
      <!--Exactly 1 occurrence-->
      <p:gender>null</p:gender>
      <!--Exactly 1 occurrence-->
      <p:prefix>null</p:prefix>
   </p:AddUser>
</body>

我发现 woks 的唯一方法是执行排除这些参数的查询，使用此查询效果很好：

<body>
   <p:AddUser xmlns:p="http://ws.wso2.org/dataservice">
      <!--Exactly 1 occurrence-->
      <p:application_UID>xxx</p:application_UID>
      <!--Exactly 1 occurrence-->
      <p:country_id>1</p:country_id>
      <!--Exactly 1 occurrence-->
      <p:localization_id>1</p:localization_id>
      <!--Exactly 1 occurrence-->
      <p:local_user_id>1</p:local_user_id>
      <!--Exactly 1 occurrence-->
      <p:is_active>true</p:is_active>
      <!--Exactly 1 occurrence-->
      <p:is_full_profile>true</p:is_full_profile>
   </p:AddUser>
</body>

在这种情况下工作并且记录正确插入我的数据库 table，但我不能使用它，因为我必须从 ESB 流调用这个 DSS 服务并且必须使用所有参数（如果参数未设置或为空）则必须插入空值。

为什么？如何修复此查询并使用 NULL 值调用它，将 NULL 保存为我的可为空字段的值？

Answer 1

Why?

恕我直言，这是预期的行为

  <p:birth_date>?</p:birth_date>
  <!--Exactly 1 occurrence-->
  <p:gender>?</p:gender>
  <!--Exactly 1 occurrence-->
  <p:prefix>?</p:prefix>

此处您将文本 ? 作为日期发送，因此 mysql 正确地抛出表达式

在 <p:birth_date></p:birth_date> 的情况下，该值是一个空字符串并且具有字符串 null 也无济于事。

How can I fix this query

我不经常使用 mysql，我建议使用 str_to_date 函数，它应该将 null 或空字符串表示为 null 值

为什么可空字段在此 WSO2 DSS INSERT 查询中不起作用？

Why nullable fields is not working in this WSO2 DSS INSERT query?

integration

wso2

wso2esb

wso2dss

jakarta-ee