WSO2 ESB：AxisFault：无协议

Question

我在使用 WSO2 ESB 4.6.0 中的以下代理时遇到问题：

<proxy name="GetCapacity" transports="http https" startOnLoad="true" trace="disable">
  <target>
     <inSequence>
        <xslt key="conf:ManageWorkforce/xslt/GetCapacity_Request.xsl"/>
        <send>
           <endpoint key="Capacity"/>
        </send>
     </inSequence>
     <outSequence>
        <filter xpath="get-property('FAULT')">
           <then>
              <log level="full" separator=",">
                 <property name="trace" value="-------- FAULT ---------"/>
              </log>
              <xslt key="conf:ManageWorkforce/xslt/SoapFaultToStandardHeader.xsl"/>
              <header name="To" expression="get-property('ReplyTo')"/>
           </then>
           <else>
              <xslt key="conf:ManageWorkforce/xslt/GetCapacity_Response.xsl"/>
           </else>
        </filter>
        <send/>
     </outSequence>
     <faultSequence>
        <log level="full" separator=",">
           <property name="trace" value="-------- FAULT SEQUENCE -------"/>
        </log>
        <property name="RESPONSE" value="true"/>
        <header name="To" expression="get-property('ReplyTo')"/>
     </faultSequence>
  </target>
</proxy>

当我用soapUI调用它并且服务抛出SoapFault（FAULT属性为TRUE）时，WSO2中出现以下错误：

[2014-01-20 19:13:30,764] ERROR - Axis2Sender Unexpected error sending message back
org.apache.axis2.AxisFault: no protocol: 
    at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
    at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:453)
    at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:277)
    at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
    at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:161)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:282)
    at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:92)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71)
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:230)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:443)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:166)
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
    at org.apache.synapse.core.axis2.DynamicAxisOperation$DynamicOperationClient.send(DynamicAxisOperation.java:238)
    at org.apache.synapse.core.axis2.DynamicAxisOperation$DynamicOperationClient.executeImpl(DynamicAxisOperation.java:167)
    at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
    at org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:456)
    at org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:57)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:316)
    at org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:329)
    at org.apache.synapse.endpoints.AddressEndpoint.send(AddressEndpoint.java:59)
    at org.apache.synapse.endpoints.IndirectEndpoint.send(IndirectEndpoint.java:54)
    at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:95)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71)
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114)
    at org.apache.synapse.core.axis2.ProxyServiceMessageReceiver.receive(ProxyServiceMessageReceiver.java:154)
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
    at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:434)
    at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:219)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.net.MalformedURLException: no protocol: 
    at java.net.URL.<init>(URL.java:567)
    at java.net.URL.<init>(URL.java:464)
    at java.net.URL.<init>(URL.java:413)
    at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:422)
    ... 31 more

我做错了什么？

Answer 1

根据错误，“To”标题似乎不正确。您能否尝试删除“To”标题并查看。在您的配置中，“To”标题已使用“ReplyTo”属性添加。因此，请在您的故障序列中添加以下内容

<header name="To" action="remove"/>

另外，最好启用调试日志，以解决问题。这将向您显示线路中的消息。请从 /repository/conf 目录下的 log4j.properties 文件中启用以下两个属性。

log4j.logger.org.apache.synapse.transport.nhttp.wire=DEBUG log4j.logger.org.apache.synapse.transport.nhttp.headers=DEBUG

在答案中添加更多内容，您已从“ReplyTo”复制“To”标题。您可以将“ReplyTo”的值记录如下，以检查它是否真的不正确。

<log level="custom"><property name="RelyTo" expression="get-property('ReplyTo')"/></log>