WSO2

Question

在WSO2 iterate mediator中，如果在一次迭代中发生错误，我希望后续迭代继续进行。我们如何确保这一点？我已完成以下操作，但在第一个错误后执行不会继续。

<sequence xmlns="http://ws.apache.org/ns/synapse" name="IterateErrprTest" onError="onErr2Cric">
   <payloadFactory media-type="xml">
      <format>
         <format xmlns="">
            <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
               <soapenv:Body>
                  <LIST>
                     <DETAIL></DETAIL>
                     <DETAIL></DETAIL>
                  </LIST>
               </soapenv:Body>
            </soapenv:Envelope>
         </format>
      </format>
   </payloadFactory>
   <iterate xmlns:ns="http://org.apache.synapse/xsd" continueParent="true" expression="//LIST/DETAIL" sequential="true">
      <target sequence="2Cric"></target>
   </iterate>
</sequence>
<!--- In my target sequence 2Cric, I have introduced an error by calling a non-existent website -->
<sequence xmlns="http://ws.apache.org/ns/synapse" name="2Cric" onError="onErr2Cric">
   <log>
      <property name="KKLK" value="KKLK KKLK"></property>
   </log>
   <callout serviceURL="http://www.cricinfo22.com">
      <source type="envelope"></source>
      <target key="Output"></target>
   </callout>
</sequence>

<!--- The error sequence  -->
<sequence xmlns="http://ws.apache.org/ns/synapse" name="onErr2Cric">
       <log>
          <property name="onErr2CricError" value="2Cric error has happened"></property>
       </log>
</sequence>

Answer 1

WSO2 中的错误与Java 中的错误相似，但与java 中的异常不同。基本上，您不应该处理错误。这意味着当迭代中介器出现错误时，它将退出循环。
我们通过围绕它进行设计来解决这个问题。我们使用 onError 属性调用与我们的错误处理序列相同的序列。但是我们不处理失败的记录。代码是这样的。

<sequence xmlns="http://ws.apache.org/ns/synapse"
          name="MySequence"
          onError="MySequence"
          trace="enable"
          statistics="enable">
  <!-- Error logging is done -->
  <!-- Get the list of records to process from the database excluding the ones failed -->
<!-- Our code here does not get the failed  -->

WSO2 - 迭代调解器。错误后应继续迭代

WSO2 - Iterate mediator. Iteration should continue after error

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