JBOSS和Java 6中注释的WebService中的CLSASTASTExtExchange

我使用jboss 4.0使用@web service注释创建简单的Web服务,如中所述。 http://www.jtraining.com/blogs/java-web-services-getting-started.html . 但是,当我像servlet一样访问服务时(根据本文中的说明),我得到的是 ClassCastException 声明我的带批注的WebService类不能强制转换为 javax.servlet.Servlet .

我哪里出错了?

The classes are given below:

//SimpleServiceWS.java    
import javax.jws.WebService;

@WebService()
public interface SimpleServiceWS {
    public String simpleMethod();
}

//SimpleServiceImpl.java
import javax.jws.WebService;

@WebService( serviceName="SimpleService", portName="SimpleServicePort", endpointInterface="edu.shyam.ws.SimpleServiceWS")
public class SimpleServiceImpl implements SimpleServiceWS {

    public String simpleMethod() {
        return "Simple response";
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>Service</display-name>
    <welcome-file-list>
        <welcome-file>/SimpleServiceWS</welcome-file>
    </welcome-file-list>
    <servlet>
        <servlet-name>SimpleServiceWS</servlet-name>
        <servlet-class>edu.shyam.ws.SimpleServiceWS</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>SimpleServiceWS</servlet-name>
        <url-pattern>/SimpleService</url-pattern>
    </servlet-mapping>
</web-app>

stacktrace如下:

java.lang.ClassCastException: SimpleServiceImpl cannot be cast to javax.servlet.Servlet
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1048)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:750)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Unknown Source)