Jetty example source code file (ManyContexts.java)

This example Jetty source code file (ManyContexts.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Jetty tags/keywords

connector, contexthandler, contexthandler, contexthandlercollection, handler, handler, handlercollection, handlercollection, hellohandler, hellohandler, http, io, ioexception, request, request, response, server, servlet, servletexception

The Jetty ManyContexts.java source code

//========================================================================
//Copyright 2006 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at 
//http://www.apache.org/licenses/LICENSE-2.0
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
//========================================================================

package org.mortbay.jetty.example;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.HttpConnection;
import org.mortbay.jetty.Request;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.AbstractHandler;
import org.mortbay.jetty.handler.ContextHandler;
import org.mortbay.jetty.handler.ContextHandlerCollection;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerCollection;
import org.mortbay.jetty.nio.SelectChannelConnector;

public class ManyContexts
{
    public static void main(String[] args)
        throws Exception
    {
        Server server = new Server();
        Connector connector=new SelectChannelConnector();
        connector.setPort(8080);
        server.setConnectors(new Connector[]{connector});
        
        ContextHandler context0 = new ContextHandler();
        context0.setContextPath("/zero");
        Handler handler0=new HelloHandler();
        context0.setHandler(handler0);

        ContextHandler context1 = new ContextHandler();
        context1.setContextPath("/one");
        Handler handler1=new HelloHandler();
        context1.setHandler(handler1);   
        
        ContextHandlerCollection contexts = new ContextHandlerCollection();
        contexts.setHandlers(new Handler[]{context0,context1});
        
        HandlerCollection handlers = new HandlerCollection();
        handlers.setHandlers(new Handler[]{contexts,new DefaultHandler()});
        
        server.setHandler(handlers);
        
        server.start();
        server.join();
    }

    public static class HelloHandler extends AbstractHandler
    {
        static int h=0;
        int hello=h++;
        
        public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException
        {
            Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
            base_request.setHandled(true);
            response.setStatus(HttpServletResponse.SC_OK);
            response.setContentType("text/html");
            response.getWriter().println("<h1>Hello OneContext "+hello+"");
        }
    }
    
}