开发以及测试echo应用最好使用内置jetty的形式

yui

　　如果使用tomcat，当改动类后，你会发现，根本不会把变化体现出来。
　　只能重启tomcat，可以使用内置jetty.
　　把jetty的jar放入，测试echo只需要2个jar，最主要的那两个，也是jetty的核心部分，必须加入的。
　　然后可以使用如下主类 进行：
　　这样就可以在jetty中测试界面了。如果愿意，后台的spring hibernate的部分使用tomcat测试。
　　两者可以同时进行。
　　下面是一个简单的启动jetty的类：  如果需要更高级的可以照着改：该类源自echo官网的测

/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
import com.wsc.myoa.TestServlet;
import java.io.IOException;
import java.io.InputStream;
import java.net.ConnectException;
import java.net.URL;
import java.net.URLConnection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.mortbay.jetty.Server;
import org.mortbay.jetty.servlet.Context;
import org.mortbay.jetty.servlet.ServletHolder;
public class TestAppRun {
private static final Class SERVLET_CLASS = TestServlet.class;
private static final String CONTEXT_PATH = "/myoa";
private static final String PATH_SPEC = "/app";
private static final int PORT = 8001;
public static void main(String[] arguments) {
new Runnable() {
public void run() {
try {
startServer();
} catch (Exception ex) {
System.out.println("ex:" + ex);
}
}
}.run();
}
static void startServer() throws Exception {
try {
URL url = new URL("http://localhost:" + PORT + "/__SHUTDOWN__/");
URLConnection conn = url.openConnection();
InputStream in = conn.getInputStream();
in.close();
} catch (ConnectException ex) {
// Do nothing.
}
Server server = new Server(PORT);
final Context testContext = new Context(server, CONTEXT_PATH, Context.SESSIONS);
testContext.addServlet(new ServletHolder(SERVLET_CLASS), PATH_SPEC);
Context shutdownContext = new Context(server, "/__SHUTDOWN__");
shutdownContext.addServlet(new ServletHolder(new HttpServlet() {
private static final long serialVersionUID = 1L;
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
try {
// Manually stopping session handler to test Application.dispose().
testContext.getSessionHandler().stop();
System.out.println("Shutdown request received: terminating.");
System.exit(0);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}), "/");
System.out.println("Deploying " + SERVLET_CLASS.getName() + " on http://localhost:" + PORT + CONTEXT_PATH + PATH_SPEC);
server.start();
server.join();
}
}
　　试代码