Start Jetty Server-优快云博客

本文介绍了一个使用Java实现的Jetty服务器部署示例。通过该示例可以了解如何配置和启动多个端口上的Jetty服务器，并部署不同的Web应用程序。文中详细展示了如何设置连接器、上下文路径以及WAR文件。

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import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerCollection;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.webapp.WebAppContext;

/**
 * Start Jetty Server(Servlet container) 
 * Dependencies:
 *   jetty.jar, jetty-util.jar, servlet-api-2.5.6.jar
 *   (/jsp-2.1) core.jar, jsp-2.1.jar, jsp-api-2.1.jar
 * @author louis
 */
public class JettyServer {
    static Map<Integer, Server> portServers = new HashMap<Integer, Server>();
    static Map<Integer, List<WebAppContext>> webAppContextLists = new HashMap<Integer, List<WebAppContext>>();

    public static void main(String args[]) throws Exception {
        //http://localhost:8088/CxfHello/HelloWorld?wsdl
        deployWebApp("web", "/CxfHello", 8088);

        //http://localhost:8080/web-sample1
        deployWebApp("C:/temp/web-sample1.war", "/web-sample1", 8080);

        //http://localhost:8080/web-sample2
        deployWebApp("C:/temp/web-sample2/web", "/web-sample2", 8080);

        startServer();
    }

    static void startServer() throws Exception {
        long startTime = System.currentTimeMillis();

        for (Integer port : portServers.keySet()) {
            Server server = portServers.get(port);

            List<WebAppContext> webAppContexts = webAppContextLists.get(port);
            Handler[] handlers1 = webAppContexts.toArray(new Handler[webAppContexts.size()]);

            //Add DefaultHandler
            Handler[] handlers = new Handler[handlers1.length + 1];
            System.arraycopy(handlers1, 0, handlers, 0, handlers1.length);
            handlers[handlers.length - 1] = new DefaultHandler();

            HandlerCollection handlerCollection = new HandlerCollection();
            handlerCollection.setHandlers(handlers);
            server.setHandler(handlerCollection);

            server.start();
        }

        System.out.printf("Server started in %.3f seconds. %n", ((double) (System.currentTimeMillis() - startTime)) / 1000);
    }

    static void deployWebApp(String war, String contextPath, int port) throws Exception {
        Server server = portServers.get(port);

        //1) Set Connector/port
        if (server == null) {
            server = new Server();
            SelectChannelConnector connector = new SelectChannelConnector();
            connector.setPort(port);
            server.setConnectors(new Connector[] { connector });

            portServers.put(port, server);
        }

        //2) Set Context 'Context Path' and 'War'
        WebAppContext webAppContext = new WebAppContext();
        webAppContext.setContextPath(contextPath);
        //It can be war file's path or webapp directory
        webAppContext.setWar(war);

        List<WebAppContext> webAppContexts = webAppContextLists.get(port);
        if (webAppContexts == null) {
            webAppContexts = new ArrayList<WebAppContext>();
            webAppContextLists.put(port, webAppContexts);
        }
        webAppContexts.add(webAppContext);

        System.out.printf("[%s] is ready...%n", contextPath);
    }
}