Android端i-jetty服务器开发(七)

http://blog.csdn.net/kongxx/article/details/7230080
Jetty实战之 嵌入式Jetty运行Servlet
1. 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HelloServlet和GoodbyeServlet，并分别对应/hello/*和/goodbye/*。

package com.google.code.garbagecan.jettystudy.sample5;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

public class ServletContextServer {
 public static void main(String[] args) throws Exception {
  Server server = new Server(8080);

  ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
  context.setContextPath("/");
  server.setHandler(context);

  // http://localhost:8080/hello
  context.addServlet(new ServletHolder(new HelloServlet()), "/hello");
  // http://localhost:8080/hello/kongxx
  context.addServlet(new ServletHolder(new HelloServlet("Hello Kongxx!")), "/hello/kongxx");

  // http://localhost:8080/goodbye
  context.addServlet(new ServletHolder(new GoodbyeServlet()), "/goodbye");
  // http://localhost:8080/goodbye/kongxx
  context.addServlet(new ServletHolder(new GoodbyeServlet("Goodbye kongxx!")), "/goodbye/kongxx");
  
  server.start();
  server.join();
 }
}
2. 两个简单的Servlet：HelloServlet和GoodbyeServlet：

package com.google.code.garbagecan.jettystudy.sample5;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloServlet extends HttpServlet {
 private static final long serialVersionUID = 1L;
 private String msg = "Hello World!";

 public HelloServlet() {
 }

 public HelloServlet(String msg) {
  this.msg = msg;
 }

 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.setContentType("text/html");
  response.setStatus(HttpServletResponse.SC_OK);
  response.getWriter().println("

" + msg + "

");
  response.getWriter().println("session=" + request.getSession(true).getId());
 }
}

package com.google.code.garbagecan.jettystudy.sample5;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class GoodbyeServlet extends HttpServlet {
 private static final long serialVersionUID = 1L;
 private String msg = "Goodbye!";

 public GoodbyeServlet() {
 }

 public GoodbyeServlet(String msg) {
  this.msg = msg;
 }

 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.setContentType("text/html");
  response.setStatus(HttpServletResponse.SC_OK);
  response.getWriter().println("

" + msg + "

");
  response.getWriter().println("session=" + request.getSession(true).getId());
 }
}
3. 运行ServletContextServer类，然后分别访问以下四个url

  http://localhost:8080/hello
  http://localhost:8080/hello/kongxx
  http://localhost:8080/goodbye
  http://localhost:8080/goodbye/kongxx

4. 除了上面的方式外，也可以创建两个个Context，分别绑定到"/hello"和"/goodbye"，如下：

package com.google.code.garbagecan.jettystudy.sample5;

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

public class MultiContextServer {
 public static void main(String[] args) throws Exception {
  Server server = new Server(8080);

  // http://localhost:8080/hello/kongxx
  ServletContextHandler context1 = new ServletContextHandler(ServletContextHandler.SESSIONS);
  context1.setContextPath("/hello");
  context1.setResourceBase(".");
  context1.setClassLoader(Thread.currentThread().getContextClassLoader());
  context1.addServlet(new ServletHolder(new HelloServlet("Hello Kongxx!")), "/kongxx");

  // http://localhost:8080/goodbye/kongxx
  ServletContextHandler context2 = new ServletContextHandler(ServletContextHandler.SESSIONS);
  context2.setContextPath("/goodbye");
  context2.setResourceBase(".");
  context2.setClassLoader(Thread.currentThread().getContextClassLoader());
  context2.addServlet(new ServletHolder(new GoodbyeServlet("Goodbye kongxx!")), "/kongxx");

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

  server.setHandler(contexts);

  server.start();
  server.join();
 }
}