Jetty直接调试，不用部署，不用弄一些杂七杂八的设置

package jetty;  
     
    import org.mortbay.jetty.Connector;  
    import org.mortbay.jetty.Server;  
    import org.mortbay.jetty.nio.SelectChannelConnector;  
    import org.mortbay.jetty.webapp.WebAppContext;  
     
    /**  
    * Jetty Server 启动类  
    *   
    * @author  zhailzh
    */  
    public class JettyStarter {  
      
    public static void main(String[] args) throws Exception {  
        long begin = System.currentTimeMillis();  
        Connector connector = new SelectChannelConnector();  
        connector.setPort(Integer.getInteger("jetty.port", 12345).intValue());  
     
        WebAppContext webapp = new WebAppContext("web", "/httpServlet");  
              
        Server server = new Server();  
        server.setConnectors(new Connector[] { connector });  
        server.setHandler(webapp);  
        server.start();  
     
        System.out.println("Jetty Server started, use " + (System.currentTimeMillis() - begin) + " ms");  
     
    }  
    }