我尝试在GAE中使用Spring MVC创建一个应用程序。我需要响应XML并使用JAXB来完成它。响应对象很复杂（包含接口），但在我的本地工作正常。问题是当我部署到App Engine时。我的请求的响应抛出了这个异常（当复杂对象，简单对象工作正常时）：
Uncaught exception from servlet
java.lang.InternalError
at com.sun.xml.bind.v2.model.annotation.RuntimeInlineAnnotationReader.getClassValue(RuntimeInlineAnnotationReader.java:139)
at com.sun.xml.bind.v2.model.annotation.RuntimeInlineAnnotationReader.getClassValue(RuntimeInlineAnnotationReader.java:53)
at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.isApplicable(PropertyInfoImpl.java:212)
at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.getApplicableAdapter(PropertyInfoImpl.java:242)
at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.<init>(PropertyInfoImpl.java:122)
at com.sun.xml.bind.v2.model.impl.ERPropertyInfoImpl.<init>(ERPropertyInfoImpl.java:53)
at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl.<init>(ElementPropertyInfoImpl.java:96)
at com.sun.xml.bind.v2.model.impl.RuntimeElementPropertyInfoImpl.<init>(RuntimeElementPropertyInfoImpl.java:59)
at com.sun.xml.bind.v2.model.impl.RuntimeClassInfoImpl.createElementProperty(RuntimeClassInfoImpl.java:165)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.addProperty(ClassInfoImpl.java:875)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findFieldProperties(ClassInfoImpl.java:405)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:308)
at com.sun.xml.bind.v2.model.impl.RuntimeClassInfoImpl.getProperties(RuntimeClassInfoImpl.java:176)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:243)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:100)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:81)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:209)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:95)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:81)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:315)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:330)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:466)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:302)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1140)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:154)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:121)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:233)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:410)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:594)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:542)
at org.springframework.http.converter.xml.AbstractJaxb2HttpMessageConverter.getJaxbContext(AbstractJaxb2HttpMessageConverter.java:88)
at org.springframework.http.converter.xml.AbstractJaxb2HttpMessageConverter.createMarshaller(AbstractJaxb2HttpMessageConverter.java:49)
at org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter.writeToResult(Jaxb2RootElementHttpMessageConverter.java:94)
at org.springframework.http.converter.xml.AbstractXmlHttpMessageConverter.writeInternal(AbstractXmlHttpMessageConverter.java:66)
at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:181)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.writeWithMessageConverters(AnnotationMethodHandlerAdapter.java:975)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.handleResponseBody(AnnotationMethodHandlerAdapter.java:933)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.getModelAndView(AnnotationMethodHandlerAdapter.java:882)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:428)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:439)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:483)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:490)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:777)
at com.google.tracing.TraceContext$DoInTraceContext.runInContext(TraceContext.java:754)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:345)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:337)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:487)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:679)
MyRequestController.java
@Controller
@RequestMapping("/.myrequestX")
public class MyRequestController
{
@Autowired
private GenericResponse response;
@Autowired
private X_ResponseBehaviorImpl valorDTO;
@RequestMapping(method = RequestMethod.GET)
@ResponseBody
public Object getRespuesta(ModelMap model, HttpServletRequest req)
{
// Other parts of code...
response.getResponseBehavior().setResponse(valorDTO);
return response;
}
}
GenericResponse.java
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
@XmlSeeAlso({ X_ResponseBehaviorImpl.class, Y_ResponseBehaviorImpl.class})
public class GenericResponse
{
@XmlElement
private String id;
@XmlElement
private ResponseBehavior responseBehavior;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public ResponseBehavior getResponseBehavior() {
return responseBehavior;
}
public void setResponseBehavior (ResponseBehavior responseBehavior) {
this.responseBehavior = responseBehavior;
}
}
ResponseBehavior.java
import com.sun.xml.internal.bind.AnyTypeAdapter;
@XmlRootElement
@XmlJavaTypeAdapter(AnyTypeAdapter.class)
public interface ResponseBehavior
{
void setResponse(Object value);
}
X_ResponseBehaviorImpl.java
public class X_ResponseBehaviorImpl implements ResponseBehavior
{
@XmlElement
String comb10;
@XmlElement
String reint4;
private void setResponse(Object value)
{
X_ValueDTO x_value = (X_ValueDTO) value;
this.comb10 = x_value.getCombinacion();
this.reint4 = x_value.getReintegro();
}
public void setComb10(String comb10) {
this.comb10 = comb10;
}
public void setReint4(String reint4) {
this.reint4 = reint4;
}
}
Java6包含JAXB ..我尝试使用某个版本（JDK6_u04，JDK6_u14 ...）并没有解决问题......
提前致谢!!!
答案 0 :(得分：1)
Java 6可能包含JAXB，但我不确定它在GAE的JVM环境中是否可用。我建议您将JAXB罐与您的应用程序一起打包。我有一个类似的问题，在GAE生产环境中没有Rhino罐子（用于脚本支持）。
希望有所帮助。