Web Service 自动生成代码报错

案例 1

生成时报错：WSDL file has validation errors. Code generation may fail

启动报错：
Caused by: javax.xml.ws.WebServiceException: Unable to create JAXBContext
    at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:158)
    at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:87)
    at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:262)
    at com.sun.xml.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:322)
    at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:188)
    at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:467)
    at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parseAdapters(DeploymentDescriptorParser.java:253)
    at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147)
    at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:108)
    ... 24 more
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 2 counts of IllegalAnnotationExceptions
java.util.List is an interface, and JAXB can't handle interfaces.
    this problem is related to the following location:
        at java.util.List
java.util.List does not have a no-arg default constructor.
    this problem is related to the following location:
        at java.util.List

参考：http://jyao.iteye.com/blog/1213655

解决方法：将服务端的services接口返回的Map类型的值，改成HashMap.
结论：在做webServices复杂类型值传递时，返回值的类型不要用接口类型。例如(List应该改为ArrayList,Map改为HashMap，或者用String[]数组等)

 

案例 2

服务端或客户端生成包时，报错：cannot find the declaration of element 'html'

原因：由于在web.xml配置了struts2的过滤器，代码如：

 

<!-- 配置Struts2核心过滤器(拦截器) -->  

    <filter>

        <filter-name>struts2</filter-name>

        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

    </filter>

 

    <filter-mapping>

        <filter-name>struts2</filter-name>

        <url-pattern>/*</url-pattern>

</filter-mapping>     

 

将/*修改为.action或.do，在struts.xml中.action不能访问静态权限，因此不能要：

<!--

         该属性设置Struts 2是否支持动态方法调用，该属性的默认值是true。如果需要关闭动态方法调用，则可设置该属性为false

 -->

<constant name="struts.enable.DynamicMethodInvocation" value="false" />

 

而.do必须要：

<!-- 设置url请求后缀 -->

    <constant name="struts.action.extension" value="do"></constant>

并且在jsp的表单action中必须加后缀.action或.do