Mule xml

Question

我正在从Mule进行SOAP调用。我使用默认异常策略来捕获异常。发生异常时，如何发送自己的故障代码和故障字符串而不是通用的soap故障消息？感谢

以下是mule xml，java代码，实际输出和预期输出的片段

Mule xml

<flow name="addressSearchFlow1" doc:name="addressSearchFlow1">
    <invoke object-ref="InvoiceManager" method="completeSearchObject"
        methodArguments="#[message.payload]"></invoke>

    <logger level="INFO" doc:name="Logger" />

    <processor-chain doc:name="Search Processor Chain">
        <cxf:jaxws-client operation="doSearch"
            clientClass="com.invoice.web_2007_09.ProWeb" port="InvoicePortType"
            wsdlLocation="proweb.wsdl" enableMuleSoapHeaders="true" doc:name="SOAP">
        </cxf:jaxws-client>
        <http:outbound-endpoint exchange-pattern="request-response"
            method="POST" ref="InvoiceEndPoint" doc:name="HTTP" />
    </processor-chain>

    <default-exception-strategy>
        <processor-chain>
            <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />
            <custom-transformer class="com.managers.CustomExceptionHandler" />
            <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />
        </processor-chain>
    </default-exception-strategy>

</flow>

Java代码

package com.managers;

import org.mule.api.MuleMessage;
import org.mule.api.transformer.TransformerException;
import org.mule.message.ExceptionMessage;
import org.mule.transformer.AbstractMessageTransformer;

public class CustomExceptionHandler extends AbstractMessageTransformer {

public CustomExceptionHandler() {
    setName("CustomExceptionHandler");
}

@Override
public Object transformMessage(MuleMessage message, String outputEncoding)
        throws TransformerException {

    ExceptionMessage exceptionMessage = (ExceptionMessage)message.getPayload();

    String outputMessage = "<soap:Fault xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">        "
            + " <faultcode>soap:Server</faultcode> "
            + "<faultstring>"
            + "An unexpected error has occured. Please contact your service desk and quote this error \""  + exceptionMessage.getException() +  "\""+ "</faultstring>      " + "</soap:Fault>";
    return outputMessage;

}

}

实际输出

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
   <soap:Body>
      <soap:Fault>
         <faultcode>soap:Server</faultcode>
         <faultstring> dt-invoice. Failed to route event via endpoint: org.mule.module.cxf.CxfOutboundMessageProcessor. Message payload is of type: PostMethod</faultstring>
      </soap:Fault>
   </soap:Body>
</soap:Envelope>

预期输出

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
   <soap:Body>
      <soap:Fault>
         <faultcode>soap:Server</faultcode>
         <faultstring> An unexpected error has occured. Please contact your service desk and quote this error   "org.mule.api.transport.DispatchException: dt-invoice. Failed to route event via endpoint: org.mule.module.cxf.CxfOutboundMessageProcessor. Message payload is of type: PostMethod"
</faultstring>
      </soap:Fault>
   </soap:Body>
</soap:Envelope>

Answer 1

您的流程中需要<catch-exception-strategy' and not '<default-exception-strategy>，如下所示：

<flow name="addressSearchFlow1" doc:name="addressSearchFlow1">
    <invoke object-ref="InvoiceManager" method="completeSearchObject"
        methodArguments="#[message.payload]"></invoke>

    <logger level="INFO" doc:name="Logger" />

    <processor-chain doc:name="Search Processor Chain">
        <cxf:jaxws-client operation="doSearch"
            clientClass="com.invoice.web_2007_09.ProWeb" port="InvoicePortType"
            wsdlLocation="proweb.wsdl" enableMuleSoapHeaders="true" doc:name="SOAP">
        </cxf:jaxws-client>
        <http:outbound-endpoint exchange-pattern="request-response"
            method="POST" ref="InvoiceEndPoint" doc:name="HTTP" />
    </processor-chain>

    <catch-exception-strategy>
        <processor-chain>
            <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />
            <custom-transformer class="com.managers.CustomExceptionHandler" />
            <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />
        </processor-chain>
    </catch-exception-strategy>

</flow>

catch-exception-strategy ：定义一个catch异常策略来自定义Mule处理任何异常的方式。 Catch异常策略使用入站消息。

default-exception-strategy ：默认情况下定义并隐式应用以处理Mule应用程序中引发的所有消息传递异常

更多信息位于mulesoft

Answer 2

按如下所示更新流程，开始使用Catch Exception Strategy。

<flow name="addressSearchFlow1" doc:name="addressSearchFlow1">
    <invoke object-ref="InvoiceManager" method="completeSearchObject"
        methodArguments="#[message.payload]"></invoke>

    <logger level="INFO" doc:name="Logger" />

    <processor-chain doc:name="Search Processor Chain">
        <cxf:jaxws-client operation="doSearch"
            clientClass="com.invoice.web_2007_09.ProWeb" port="InvoicePortType"
            wsdlLocation="proweb.wsdl" enableMuleSoapHeaders="true" doc:name="SOAP">
        </cxf:jaxws-client>
        <http:outbound-endpoint exchange-pattern="request-response"
            method="POST" ref="InvoiceEndPoint" doc:name="HTTP" />
    </processor-chain>

    <catch-exception-strategy>          
        <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />
        <custom-transformer class="com.managers.CustomExceptionHandler" />
        <logger message="Exception_logger" level="INFO" doc:name="Exception_logger" />          
    </catch-exception-strategy>
</flow>

同样在自定义转换器中，作为有效内容的消息中不存在异常。它在exceptionPayload中可用。因此，使用message.getExceptionPayload（），它会为您提供ExceptionPayload。在exceptionPayload对象中，可以获取异常消息和其他详细信息。

希望这有帮助。

当发生mule-soap异常时，如何发送自己的故障代码和故障字符串而不是通用soap故障消息？

Mule xml

Java代码

实际输出

预期输出

2 个答案: