Jetty - 嵌入式运行Servlet

一、说明
    在嵌入式Jetty中，有时候我们想运行一些的Servlet，此时就需要创建创建Context，然后让自己的Servlet运行在这些ServletContext中。

二、应用
    1、方式一

         首先创建一个ServletContextServer类，用来初始化web应用程序的Context，并且指定Servlet和Servlet匹配的url。这里指定了两个Servlet，分别是IndexServlet和UserServlet，并分别对应/test/index/indexServlet和/test/user/userServlet。

package com.test.main;

import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import com.test.servlet.IndexServlet;
import com.test.servlet.UserServlet;

public class Main {

    public static void main(String[] args) throws Exception {

       Server service = new Server();
        //创建连接器
        Connector connector = new SelectChannelConnector();
        // 设置端口
        connector.setPort(80);
        // 设置host地址
        connector.setHost("127.0.0.1");

        service.setConnectors(new Connector[] { connector });

        //ServletContext
        ServletContextHandler context =
            new ServletContextHandler(ServletContextHandler.SESSIONS);
        //设置根路径
        context.setContextPath("/test");

        //设置servlet的url
        context.addServlet(new ServletHolder(new IndexServlet()), "/index/indexServlet");
        context.addServlet(new ServletHolder(new UserServlet()), "/user/userServlet");

        service.setHandler(context);

        service.setStopAtShutdown(true);
        service.setSendServerVersion(true);

        // 启动服务
        service.start();
        service.join();
    }
}

    2、方式二
         除了上面的方式外，也可以创建两个Context，分别绑定到/index/indexServlet和/user/userServlet，如下：

package com.test.main;

import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import com.test.servlet.IndexServlet;
import com.test.servlet.UserServlet;

public class Main {

    public static void main(String[] args) throws Exception {

      Server service = new Server();
        //创建连接器
        Connector connector = new SelectChannelConnector();
        // 设置端口
        connector.setPort(80);
        // 设置host地址
        connector.setHost("127.0.0.1");

        //context1
        ServletContextHandler context1 =
            new ServletContextHandler(ServletContextHandler.SESSIONS);
        context1.setContextPath("/index");
        context1.setClassLoader(Thread.currentThread().getContextClassLoader());
        context1.addServlet(new ServletHolder(new IndexServlet()), "/indexServlet");

        //context2   
        ServletContextHandler context2 =
            new ServletContextHandler(ServletContextHandler.SESSIONS);
        context2.setContextPath("/user");
        context2.setClassLoader(Thread.currentThread().getContextClassLoader());
        context2.addServlet(new ServletHolder(new UserServlet()), "/userServlet");

        //contexts
        ContextHandlerCollection contexts = new ContextHandlerCollection();
        contexts.setHandlers(new Handler[] { context1, context2 });

        service.setHandler(contexts);

        service.setStopAtShutdown(true);
        service.setSendServerVersion(true);

        // 启动服务
        service.start();
        service.join();
    }
}

三、参考

   http://blog.csdn.net/kongxx/article/details/7230080