jax-ws handler 的详解及简单实例

import javax.jws.HandlerChain; 
import javax.jws.WebMethod; 
import javax.jws.WebService; 
 
 
@WebService 
@HandlerChain(file="handlers.xml") 
public class Hello { 
 
  @WebMethod() 
  public String sayHello(String name) { 
    return "Hello " + name + "."; 
  } 
} 

<?xml version="1.0" encoding="UTF-8"?> 
<handler-chains xmlns="http://java.sun.com/xml/ns/javaee"> 
  <handler-chain> 
    <handler> 
      <handler-name>ServiceSOAPHandler</handler-name> 
      <handler-class>com.ws.handler.HelloHandler</handler-class> 
    </handler> 
  </handler-chain> 
</handler-chains> 

import java.util.Set; 
 
import javax.xml.namespace.QName; 
import javax.xml.ws.handler.MessageContext; 
import javax.xml.ws.handler.soap.SOAPHandler; 
import javax.xml.ws.handler.soap.SOAPMessageContext; 
 
public class HelloHandler implements SOAPHandler<SOAPMessageContext> { 
 
 
  @Override 
  public boolean handleMessage(SOAPMessageContext context) { 
    System.out.println(context.get(MessageContext.WSDL_SERVICE).toString()); 
    return true; 
  } 
 
  @Override 
  public boolean handleFault(SOAPMessageContext context) { 
    // TODO Auto-generated method stub 
    return true; 
  } 
 
  @Override 
  public void close(MessageContext context) { 
    // TODO Auto-generated method stub 
     
  } 
 
  @Override 
  public Set<QName> getHeaders() 
  { 
    // TODO Auto-generated method stub 
    return null; 
  } 
 
} 

<listener> 
    <listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class> 
  </listener> 
  <servlet> 
     
    <servlet-name>wsservlet</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>wsservlet</servlet-name> 
    <url-pattern>/helloservice</url-pattern> 
  </servlet-mapping> 

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