从 Apache camel 调用 web 服务时遇到问题

【问题标题】：Trouble in calling webservice from Apache camel从 Apache camel 调用 web 服务时遇到问题
【发布时间】：2014-05-22 10:45:53
【问题描述】：

我正在尝试使用 CXF 从 Apache Camel 调用 Web 服务，该服务尝试将货币从一种货币转换为另一种货币，但由于端点解析，我无法调用它。 如果有任何简单的教程如何从 Apache Camel 调用 web 服务，请发布.. 提前谢谢..

CamelContext 如下..

<?xml version="1.0" encoding="UTF-8" standalone="no"?><beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:cxf="http://camel.apache.org/schema/cxf" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd        
    http://camel.apache.org/schema/spring  
    http://camel.apache.org/schema/spring/camel-spring.xsd">

  <camelContext trace="false" xmlns="http://camel.apache.org/schema/spring">
    <route>
    <from uri="file:src/data/order?noop=true"/>
        <log message="&gt;&gt;&gt; ${body}" loggingLevel="INFO"/>
        <to uri="cxf://http://www.webservicex.net/CurrencyConvertor.asmx?wsdlURL=http://www.webservicex.net/CurrencyConvertor.asmx?wsdl&amp;serviceName={http://www.webserviceX.NET/}CurrencyConvertor&amp;portName={http://www.webserviceX.NET/}CurrencyConvertorSoap&amp;dataFormat=MESSAGE"/>   
        <log message="&gt;&gt;&gt; ${body}" loggingLevel="INFO"/>
    </route>
</camelContext>

</beans>

我的 order.xml 是...

<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
  <soap12:Body>
   <web:ConversionRate>
<web:FromCurrency>AUD</web:FromCurrency>
<web:ToCurrency>USD</web:ToCurrency>
</web:ConversionRate> 
  </soap12:Body>
</soap12:Envelope>

这是我在运行骆驼上下文时遇到的错误......

*************************************
Error occurred while running main from: org.apache.camel.spring.Main
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.camel.maven.RunMojo$1.run(RunMojo.java:440)
    at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: Endpoint[cxf://http://www.webservicex.net/CurrencyConvertor.asmx?dataFormat=MESSAGE&portName=%7Bhttp%3A%2F%2Fwww.webserviceX.NET%2F%7DCurrencyConvertorSoap&serviceName=%7Bhttp%3A%2F%2Fwww.webserviceX.NET%2F%7DCurrencyConvertor&wsdlURL=http%3A%2F%2Fwww.webservicex.net%2FCurrencyConvertor.asmx%3Fwsdl]. Reason: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service.
    at org.apache.camel.impl.ProducerCache.doGetProducer(ProducerCache.java:395)
    at org.apache.camel.impl.ProducerCache.acquireProducer(ProducerCache.java:114)
    at org.apache.camel.impl.ProducerCache.startProducer(ProducerCache.java:145)
    at org.apache.camel.processor.SendProcessor.doStart(SendProcessor.java:175)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.processor.interceptor.TraceInterceptor.doStart(TraceInterceptor.java:358)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.processor.WrapProcessor.doStart(WrapProcessor.java:52)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.RedeliveryErrorHandler.doStart(RedeliveryErrorHandler.java:1064)
    at org.apache.camel.support.ChildServiceSupport.start(ChildServiceSupport.java:41)
    at org.apache.camel.support.ChildServiceSupport.start(ChildServiceSupport.java:28)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.interceptor.DefaultChannel.doStart(DefaultChannel.java:153)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:85)
    at org.apache.camel.processor.MulticastProcessor.doStart(MulticastProcessor.java:938)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.processor.UnitOfWorkProcessor.doStart(UnitOfWorkProcessor.java:88)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:52)
    at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:78)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.impl.RouteService.startChildService(RouteService.java:322)
    at org.apache.camel.impl.RouteService.warmUp(RouteService.java:151)
    at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:2000)
    at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:1928)
    at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:1716)
    at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1597)
    at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1453)
    at org.apache.camel.spring.SpringCamelContext.doStart(SpringCamelContext.java:179)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1421)
    at org.apache.camel.spring.SpringCamelContext.maybeStart(SpringCamelContext.java:228)
    at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:118)
    at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:283)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:97)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:327)
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:941)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:475)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
    at org.apache.camel.spring.Main.createDefaultApplicationContext(Main.java:186)
    at org.apache.camel.spring.Main.doStart(Main.java:140)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.main.MainSupport.run(MainSupport.java:141)
    at org.apache.camel.main.MainSupport.run(MainSupport.java:332)
    at org.apache.camel.spring.Main.main(Main.java:73)
    ... 6 more
Caused by: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service.
    at org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:94)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromWSDL(ReflectionServiceFactoryBean.java:398)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:534)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:248)
    at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:101)
    at org.apache.cxf.frontend.ClientFactoryBean.create(ClientFactoryBean.java:90)
    at org.apache.camel.component.cxf.CxfEndpoint.createClient(CxfEndpoint.java:527)
    at org.apache.camel.component.cxf.CxfProducer.doStart(CxfProducer.java:76)
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:60)
    at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:62)
    at org.apache.camel.impl.ProducerCache.doGetProducer(ProducerCache.java:393)
    ... 88 more
Caused by: javax.wsdl.WSDLException: WSDLException: faultCode=PARSER_ERROR: Problem parsing 'http://www.webservicex.net/CurrencyConvertor.asmx?wsdl'.: java.net.UnknownHostException: www.webservicex.net
    at com.ibm.wsdl.xml.WSDLReaderImpl.getDocument(Unknown Source)
    at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
    at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
    at org.apache.cxf.wsdl11.WSDLManagerImpl.loadDefinition(WSDLManagerImpl.java:249)
    at org.apache.cxf.wsdl11.WSDLManagerImpl.getDefinition(WSDLManagerImpl.java:192)
    at org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:92)
    ... 98 more
Caused by: java.net.UnknownHostException: www.webservicex.net
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
    at sun.net.www.http.HttpClient.New(HttpClient.java:308)
    at sun.net.www.http.HttpClient.New(HttpClient.java:326)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1300)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:637)
    at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:189)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:812)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:243)
    at enter code herecom.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:347)

【问题讨论】：

  • 本质上你是在代理网络服务。见这个例子camel.apache.org/cxf-proxy-example.html
  • 感谢 Namphibian 的回复...骆驼上下文中的 url 是正确还是错误，因为我在那个 url 中遇到错误..

标签： cxf apache-camel


【解决方案1】：

访问http://www.webservicex.net/CurrencyConvertor.asmx?wsdl 时，您的日志显示：

java.net.UnknownHostException

检查您是否可以访问互联网。或者，如果您在代理服务器后面，您可以先设置适当的代理设置。查找有关 here 的更多信息。

也就是说，您的 SOAP 请求错过了 web 命名空间。如果没有适当的设置，服务器会报错。

xmlns:web="http://www.webserviceX.NET/"

我开始测试：

 final org.apache.camel.spring.Main main = new org.apache.camel.spring.Main();
 main.setApplicationContextUri("META-INF/spring/cxf-example.orig.xml");
 main.start();

【讨论】：

  • 感谢彼得的帮助...我尝试了您的代理建议并在我的骆驼上下文中添加了 xmlns 但我仍然面临同样的问题..
  • @Rahulbujji 我测试了您的设置（使用更正的命名空间声明）并且它工作正常。如果可能，请从不在防火墙后面的另一个域中的不同服务器测试您的路由。
  • 彼得你能把你试过的骆驼上下文贴出来吗..这对我有用......
  • @Rahulbujji 我复制粘贴了您的示例，仅更改了文件源位置。我用 Camel v2.12.3 和 v2.13.1 进行了测试。我在答案中添加了我的 Java 启动序列。但是，正如我在回答中所述，我猜您的问题与网络有关。
  • @Rahulbujji 您能发布一下您是如何设置 Camel 代理配置的吗？
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