webservice，作为web开发人员来说必须掌握的一门技术，它的好处这里就不多说了，eclipse中自带了一种生成webservice的 方法，使用JAX-WS，如果我没有弄错的话，它需要javaEE5.0、JDK1.5以上，了解完这些就开始写接口方法。各种随心所欲。不料在用 eclipse生成webservice时出现错误了，生成不了，错误信息如下“ An internal error occurred during: "Generating JAX-WS Web Services". Unable to create JAXBContext ”  ,错误堆栈如下:

  1. 十一月 16, 2015 1:01:32 下午 org.apache.catalina.core.ApplicationContext log
  2. 信息: Initializing Spring root WebApplicationContext
  3. 十一月 16, 2015 1:01:35 下午 org.apache.catalina.core.StandardContext filterStart
  4. 严重: Exception starting filter ssoFilter
  5. javax.xml.ws.WebServiceException: Unable to create JAXBContext
  6.     at com.sun.xml.internal.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:156)
  7.     at com.sun.xml.internal.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:84)
  8.     at com.sun.xml.internal.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:234)
  9.     at com.sun.xml.internal.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:328)
  10.     at com.sun.xml.internal.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:190)
  11.     at com.sun.xml.internal.ws.api.server.WSEndpoint.create(WSEndpoint.java:498)
  12.     at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.createEndpoint(EndpointImpl.java:246)
  13.     at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.publish(EndpointImpl.java:170)
  14.     at com.sun.xml.internal.ws.spi.ProviderImpl.createAndPublishEndpoint(ProviderImpl.java:118)
  15.     at javax.xml.ws.Endpoint.publish(Endpoint.java:240)
  16.     at com.pcitc.sso.client.SSOFilter.init(SSOFilter.java:42)
  17.     at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
  18.     at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
  19.     at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
  20.     at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4038)
  21.     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4692)
  22.     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
  23.     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
  24.     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
  25.     at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
  26.     at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
  27.     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
  28.     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
  29.     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
  30.     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
  31.     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
  32.     at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
  33.     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
  34.     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
  35.     at org.apache.catalina.core.StandardService.start(StandardService.java:525)
  36.     at org.apache.catalina.core.StandardServer.start(StandardServer.java:701)
  37.     at org.apache.catalina.startup.Catalina.start(Catalina.java:585)
  38.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  39.     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  40.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  41.     at java.lang.reflect.Method.invoke(Method.java:606)
  42.     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
  43.     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
  44. Caused by: java.security.PrivilegedActionException: com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 2 counts of IllegalAnnotationExceptions
  45. javax.servlet.http.HttpServletRequest is an interface, and JAXB can't handle interfaces.
  46.     this problem is related to the following location:
  47.         at javax.servlet.http.HttpServletRequest
  48.         at public javax.servlet.http.HttpServletRequest com.pcitc.sso.client.webservice.jaxws.GetLoginUser.arg0
  49.         at com.pcitc.sso.client.webservice.jaxws.GetLoginUser
  50. javax.servlet.http.HttpServletResponse is an interface, and JAXB can't handle interfaces.
  51.     this problem is related to the following location:
  52.         at javax.servlet.http.HttpServletResponse
  53.         at public javax.servlet.http.HttpServletResponse com.pcitc.sso.client.webservice.jaxws.GetLoginUser.arg1
  54.         at com.pcitc.sso.client.webservice.jaxws.GetLoginUser
  55.  
  56.     at java.security.AccessController.doPrivileged(Native Method)
  57.     at com.sun.xml.internal.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:143)
  58.     ... 37 more
  59. Caused by: com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 2 counts of IllegalAnnotationExceptions
  60. javax.servlet.http.HttpServletRequest is an interface, and JAXB can't handle interfaces.
  61.     this problem is related to the following location:
  62.         at javax.servlet.http.HttpServletRequest
  63.         at public javax.servlet.http.HttpServletRequest com.pcitc.sso.client.webservice.jaxws.GetLoginUser.arg0
  64.         at com.pcitc.sso.client.webservice.jaxws.GetLoginUser
  65. javax.servlet.http.HttpServletResponse is an interface, and JAXB can't handle interfaces.
  66.     this problem is related to the following location:
  67.         at javax.servlet.http.HttpServletResponse
  68.         at public javax.servlet.http.HttpServletResponse com.pcitc.sso.client.webservice.jaxws.GetLoginUser.arg1
  69.         at com.pcitc.sso.client.webservice.jaxws.GetLoginUser
  70.  
  71.     at com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:91)
  72.     at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:442)
  73.     at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:274)
  74.     at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:125)
  75.     at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1127)
  76.     at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:173)
  77.     at com.sun.xml.internal.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:95)
  78.     at com.sun.xml.internal.ws.developer.JAXBContextFactory$1.createJAXBContext(JAXBContextFactory.java:98)
  79.     at com.sun.xml.internal.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:151)
  80.     at com.sun.xml.internal.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:143)
  81.     ... 39 more
  82.  
  83. 十一月 16, 2015 1:01:35 下午 org.apache.catalina.core.ApplicationContext log
  84. 信息: Closing Spring root WebApplicationContext

真心让人郁闷，尤其是刚开始搞webservice的时候。其实仔细阅读一下堆栈信息就会发现，说 HttpServletRequest ,HttpServletResponse 是一个接口，而JAXB不能处理接口。记得网上有人说 JAX-WS只支持基本数据类型，int、String等，其实不是的，JAX支持的数据类型很多，List、HashMap、自定义对象等等都没问题， 只是不能处理接口，那就在方法的参数和返回值上不要有接口就好了。

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