Question

我正在尝试通过扩展SpringBeanAutowiringSupport来公开我的Web服务。我正在使用GlassFish 3.1和Spring 3.0.5.RELEASE。

我正在关注教程here。

但是，当我转到我的网络服务的网址时，我收到了ClassCastException。

关于我遗失或做错的任何想法？

WARNING: StandardWrapperValve[GreetingService]: PWC1382: Allocate exception for servlet GreetingService
java.lang.ClassCastException: com.service.GreetingServiceEndpoint cannot be cast to javax.servlet.Servlet
    at com.sun.enterprise.web.WebContainer.createServletInstance(WebContainer.java:702)
    at com.sun.enterprise.web.WebModule.createServletInstance(WebModule.java:1958)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1263)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:1070)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:189)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:680)

端点

@WebService (serviceName="GreetingService")
public class GreetingServiceEndpoint extends SpringBeanAutowiringSupport {
    @Autowired
    private GreetingService greetingService;

    @WebMethod
    public String sayHello () {
        return greetingService.sayHello();
    }
}

服务

@Service ("greetingService")
public class GreetingService {
    public String sayHello () {
        return "Hello from Greeting Service";
    }
}

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0" metadata-complete="true">  

    <display-name>Archetype Created Web Application</display-name>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>GreetingService</servlet-name>
    <servlet-class>com.service.GreetingServiceEndpoint</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>GreetingService</servlet-name>
    <url-pattern>/GreetingService</url-pattern>
  </servlet-mapping>
</web-app>

Answer 1

您的班级：com.service.GreetingServiceEndpoint不是javax.servlet.Servlet的实例。您不能将其作为servlet放入web.xml。要运行JAX-WS Web服务，必须在web.xml中声明JAX-WS servlet：com.sun.xml.ws.transport.http.servlet.WSServlet此servlet将为您的Web服务提供请求。

完整的servlet声明应如下所示：

<servlet>
    <servlet-name>Greeting</servlet-name>
    <servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Greeting</servlet-name>
    <url-pattern>/services/Greeting</url-pattern>
</servlet-mapping>

您的com.service.GreetingServiceEndpoint课程应在sun-jaxws.xml文件中定义，如下所示：

<endpoints xmlns="http://java.sun.com/xml/ns/jax-ws/ri/runtime" version="2.0">
    <endpoint name="Greeting" implementation="com.service.GreetingServiceEndpoint" url-pattern="/services/Greeting"/>
</endpoints>

此文件必须添加到您的网络应用的WEB-INF中。看一下我的帖子here。它应该会有所帮助。

Answer 2

无需在com.service.GreetingServiceEndpoint中注册web.xml作为Servlet;因为它没有扩展HttpServlet。

使用GlassFish 3.1扩展SpringBeanAutowiringSupport

端点

服务

的web.xml

2 个答案: