使用骆驼recipientList got

Question

我试图在程序运行时使用Apache动态指定目标。将recipientList参数更改为端点列表后，将遇到一个ClassCastException。

如果我错过了什么，谁能帮我提点建议吗？

非常感谢。

from("jms:queue:jms/XXXQ").recipientList(header("recipientList")); 

List<Endpoint> eps = new ArrayList<Endpoint>(); 
CxfEndpoint endpoint = exchange.getContext().getEndpoint("cxf:bean:configServiceEndpoint", CxfEndpoint.class);

endpoint.setAddress(URL);
endpoint.setWsdlURL(WSDL);
eps.add(endpoint); 

CxfProducer cp = (CxfProducer) endpoint.createProducer();
cp.start();  

exchange.getIn().setHeader("recipientList", eps);

<cxf:cxfEndpoint id="configServiceEndpoint" address="${CXFTestSupport.URL}" wsdlURL="${CXFTestSupport.WSDL}" serviceClass="com.company.client.ClientService">
</cxf:cxfEndpoint>

例外情况如下：

2017-05-16 09:24:16,100 13100 WARN  org.apache.camel.component.jms.EndpointMessageListener  - Execution of JMS message listener failed. Caused by: [org.apache.camel.RuntimeCamelException - java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String]
org.apache.camel.RuntimeCamelException: java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String
        at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1619)
        at org.apache.camel.component.jms.EndpointMessageListener$EndpointMessageListenerAsyncCallback.done(EndpointMessageListener.java:186)
        at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:107)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:699)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:637)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:605)
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:308)
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:246)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1144)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1136)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1033)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:627)
        at java.lang.Thread.run(Thread.java:809)
    Caused by: java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String
        at org.apache.cxf.transport.http.Headers.transferProtocolHeadersToURLConnection(Headers.java:358)
        at org.apache.cxf.transport.http.Headers.setProtocolHeadersInConnection(Headers.java:310)
        at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.setProtocolHeaders(URLConnectionHTTPConduit.java:222)
        at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleHeadersTrustCaching(HTTPConduit.java:1288)
        at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.onFirstWrite(HTTPConduit.java:1267)
        at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.onFirstWrite(URLConnectionHTTPConduit.java:210)
        at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:47)
        at org.apache.cxf.io.AbstractThresholdOutputStream.unBuffer(AbstractThresholdOutputStream.java:89)
        at org.apache.cxf.io.AbstractThresholdOutputStream.write(AbstractThresholdOutputStream.java:63)
        at org.apache.cxf.io.CacheAndWriteOutputStream.write(CacheAndWriteOutputStream.java:80)
        at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:51)
        at com.ctc.wstx.io.UTF8Writer.flush(UTF8Writer.java:100)
        at com.ctc.wstx.sw.BufferingXmlWriter.flush(BufferingXmlWriter.java:241)
        at com.ctc.wstx.sw.BaseStreamWriter.flush(BaseStreamWriter.java:253)
        at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:215)
        at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:174)
        at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
        at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:516)
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:418)
        at org.apache.camel.component.cxf.CxfProducer.process(CxfProducer.java:116)
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
        at org.apache.camel.builder.NoErrorHandlerBuilder$1.process(NoErrorHandlerBuilder.java:40)
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
        at org.apache.camel.processor.MulticastProcessor.doProcessParallel(MulticastProcessor.java:798)
        at org.apache.camel.processor.MulticastProcessor.access$200(MulticastProcessor.java:83)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:304)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:289)
        at java.util.concurrent.FutureTask.run(FutureTask.java:274)
        ... 3 more
    2017-05-16 09:24:16,100 13100 WARN  org.apache.camel.component.jms.EndpointMessageListener  - Execution of JMS message listener failed. Caused by: [org.apache.camel.RuntimeCamelException - java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String]
    org.apache.camel.RuntimeCamelException: java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String
        at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1619)
        at org.apache.camel.component.jms.EndpointMessageListener$EndpointMessageListenerAsyncCallback.done(EndpointMessageListener.java:186)
        at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:107)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:699)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:637)
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:605)
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:308)
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:246)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1144)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1136)
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1033)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:627)
        at java.lang.Thread.run(Thread.java:809)
    Caused by: java.lang.ClassCastException: org.apache.camel.component.cxf.CxfSpringEndpoint incompatible with java.lang.String
        at org.apache.cxf.transport.http.Headers.transferProtocolHeadersToURLConnection(Headers.java:358)
        at org.apache.cxf.transport.http.Headers.setProtocolHeadersInConnection(Headers.java:310)
        at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.setProtocolHeaders(URLConnectionHTTPConduit.java:222)
        at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleHeadersTrustCaching(HTTPConduit.java:1288)
        at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.onFirstWrite(HTTPConduit.java:1267)
        at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.onFirstWrite(URLConnectionHTTPConduit.java:210)
        at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:47)
        at org.apache.cxf.io.AbstractThresholdOutputStream.unBuffer(AbstractThresholdOutputStream.java:89)
        at org.apache.cxf.io.AbstractThresholdOutputStream.write(AbstractThresholdOutputStream.java:63)
        at org.apache.cxf.io.CacheAndWriteOutputStream.write(CacheAndWriteOutputStream.java:80)
        at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:51)
        at com.ctc.wstx.io.UTF8Writer.flush(UTF8Writer.java:100)
        at com.ctc.wstx.sw.BufferingXmlWriter.flush(BufferingXmlWriter.java:241)
        at com.ctc.wstx.sw.BaseStreamWriter.flush(BaseStreamWriter.java:253)
        at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:215)
        at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:174)
        at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
        at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:516)
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:418)
        at org.apache.camel.component.cxf.CxfProducer.process(CxfProducer.java:116)
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
        at org.apache.camel.builder.NoErrorHandlerBuilder$1.process(NoErrorHandlerBuilder.java:40)
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
        at org.apache.camel.processor.MulticastProcessor.doProcessParallel(MulticastProcessor.java:798)
        at org.apache.camel.processor.MulticastProcessor.access$200(MulticastProcessor.java:83)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:304)
        at org.apache.camel.processor.MulticastProcessor$1.call(MulticastProcessor.java:289)
        at java.util.concurrent.FutureTask.run(FutureTask.java:274)
        ... 3 more

Answer 1

你是在

List<Endpoint>

对于recipientList头，但根据文档(http://camel.apache.org/recipient-list.html )，不能使用“动态收件人列表”“->”"Iteratable“)端点对象：

在标头中定义的接收者的动态列表必须是可迭代的，例如：

• java.util.Collection
• java.util.Iterator
• 列阵
• org.w3c.dom.NodeList
• 用逗号分隔值的单个字符串。
• 任何其他类型都将被视为单个值。