com.sun.istack.SAXException2: XXXX is not known to this context

解决WebService调用异常

最新推荐文章于 2020-12-03 09:27:41 发布

翻译最新推荐文章于 2020-12-03 09:27:41 发布 · 3.1k 阅读

本文介绍了一种在连续调用多个WebService接口时出现的“gc.web.ws.SayGoodByeisnotknowntothiscontext”异常，并提供了解决方案。通过重置线程上下文类加载器，可以避免此类异常，确保接口调用成功。

com.sun.istack.SAXException2: XXXX is not known to this context

近期一个需求,需要在一个 cfx+spring搭建的webService项目的一个功能中调用另外一个WebService项目中的两个接口,单独调用两个接口没有任何异常,但是同时调用两个接口就会报异常 org.apache.cxf.interceptor.Fault: Marshalling Error: XXXX is not known to this conte,同事帮助得以解决,做个例子特此留念.

服务端接口A:

@WebService
public interface SayHello {
public String sayHello(@WebParam(name = "name") String name);
}

接口A实现类:

public class SayHelloImpl implements SayHello {
@Resource
private UserService userService;
@Override
public String sayHello(String name) {
//User user = userService.findOne(Long.valueOf(id));
return "Hello:" + name;
}
}

服务端接口B:

@WebService
public interface SayGoodBye {
public String sayGoodBye(@WebParam(name = "name") String name);
}

接口B实现类:

public class SayGoodByeImpl implements SayGoodBye {
@Override
public String sayGoodBye(String name) {
return "bye:" + name;
}
}

spring配置文件:

<bean id="getSayHelloImpl" class="gc.web.ws.SayHelloImpl"></bean>
<jaxws:endpoint id="getSayHelloService" implementor="#getSayHelloImpl" address="/getSayHelloService"></jaxws:endpoint>
<bean id="getSayGoodByeImpl" class="gc.web.ws.SayGoodByeImpl"></bean>
<jaxws:endpoint id="getSayGoodByeService" implementor="#getSayGoodByeImpl" address="/getSayGoodByeService"></jaxws:endpoint>

客户端调用:

public static void main(String[] args){
try {
JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();
Client clientA = dcf.createClient("http://192.168.1.66:8080/groupClass/ws/getSayHelloService?wsdl");
Object[] resultA = clientA.invoke("sayHello", "Joker");
System.out.println("resultA===>" + resultA[0]);
dcf = JaxWsDynamicClientFactory.newInstance();
Client clientB = dcf.createClient("http://192.168.1.66:8080/groupClass/ws/getSayGoodByeService?wsdl");
Object[] resultB = clientB.invoke("sayGoodBye", "Joker");
System.out.println("resultB===>" + resultB[0]);
} catch (Exception e) {
e.printStackTrace();
}
}

得到的异常:

[INFO ] [08:43:33] org.apache.cxf.endpoint.dynamic.DynamicClientFactory - Created classes: gc.web.ws.ObjectFactory, gc.web.ws.SayHello, gc.web.ws.SayHelloResponse
resultA===>Hello:Joker
[INFO ] [08:43:35] org.apache.cxf.endpoint.dynamic.DynamicClientFactory - Created classes: gc.web.ws.ObjectFactory, gc.web.ws.SayGoodBye, gc.web.ws.SayGoodByeResponse
[WARN ] [08:43:35] org.apache.cxf.phase.PhaseInterceptorChain - Interceptor for {http://ws.web.gc/}SayGoodByeImplService#{http://ws.web.gc/}sayGoodBye has thrown exception, unwinding now
org.apache.cxf.interceptor.Fault: Marshalling Error: gc.web.ws.SayGoodBye is not known to this context
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:266)
at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:237)
at org.apache.cxf.interceptor.AbstractOutDatabindingInterceptor.writeParts(AbstractOutDatabindingInterceptor.java:117)
at org.apache.cxf.wsdl.interceptors.BareOutInterceptor.handleMessage(BareOutInterceptor.java:68)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:277)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:297)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:283)
at cms.web.util.ConnectWebService.main(ConnectWebService.java:129)
Caused by: javax.xml.bind.MarshalException
- with linked exception:
[com.sun.istack.SAXException2: gc.web.ws.SayGoodBye is not known to this context
javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context]
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:326)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:251)
at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:95)
at org.apache.cxf.jaxb.JAXBEncoderDecoder.writeObject(JAXBEncoderDecoder.java:617)
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:241)
... 11 more
Caused by: com.sun.istack.SAXException2: gc.web.ws.SayGoodBye is not known to this context
javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:247)
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:262)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:147)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:130)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeBody(ElementBeanInfoImpl.java:332)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeRoot(ElementBeanInfoImpl.java:339)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeRoot(ElementBeanInfoImpl.java:75)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:494)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:323)
... 15 more
Caused by: javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getBeanInfo(JAXBContextImpl.java:613)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:144)
... 21 more
org.apache.cxf.interceptor.Fault: Marshalling Error: gc.web.ws.SayGoodBye is not known to this context
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:266)
at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:237)
at org.apache.cxf.interceptor.AbstractOutDatabindingInterceptor.writeParts(AbstractOutDatabindingInterceptor.java:117)
at org.apache.cxf.wsdl.interceptors.BareOutInterceptor.handleMessage(BareOutInterceptor.java:68)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:277)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:297)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:283)
at cms.web.util.ConnectWebService.main(ConnectWebService.java:129)
Caused by: javax.xml.bind.MarshalException
- with linked exception:
[com.sun.istack.SAXException2: gc.web.ws.SayGoodBye is not known to this context
javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context]
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:326)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:251)
at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:95)
at org.apache.cxf.jaxb.JAXBEncoderDecoder.writeObject(JAXBEncoderDecoder.java:617)
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:241)
... 11 more
Caused by: com.sun.istack.SAXException2: gc.web.ws.SayGoodBye is not known to this context
javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:247)
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:262)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:147)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:130)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeBody(ElementBeanInfoImpl.java:332)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeRoot(ElementBeanInfoImpl.java:339)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl.serializeRoot(ElementBeanInfoImpl.java:75)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:494)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:323)
... 15 more
Caused by: javax.xml.bind.JAXBException: gc.web.ws.SayGoodBye is not known to this context
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getBeanInfo(JAXBContextImpl.java:613)
at com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl$1.serializeBody(ElementBeanInfoImpl.java:144)
... 21 more

解决异常后的客户端代码:主要是重置上下文

public static void main(String[] args){
try {
//在一个方法中连续调用多次WebService接口,每次调用前需要重置上下文
ClassLoader cl = Thread.currentThread().getContextClassLoader();
JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();
Client clientA = dcf.createClient("http://192.168.1.66:8080/groupClass/ws/getSayHelloService?wsdl");
Object[] resultA = clientA.invoke("sayHello", "Joker");
System.out.println("resultA===>" + resultA[0]);
Thread.currentThread().setContextClassLoader(cl);
dcf = JaxWsDynamicClientFactory.newInstance();
Client clientB = dcf.createClient("http://192.168.1.66:8080/groupClass/ws/getSayGoodByeService?wsdl");
Object[] resultB = clientB.invoke("sayGoodBye", "Joker");
System.out.println("resultB===>" + resultB[0]);
} catch (Exception e) {
e.printStackTrace();
}
}