在应用程序中内嵌tomcat7.0

经过一上午的摸索，终于搞定了如何内嵌tomcat7.0。其实挺简单的，主要在于与以前版本不同，tomcat7.0只要新建一个对象，就可以完成JSP服务器的启动与关闭，这个关键的类就是Tomcat；

以下是我今天的写的相关代码。IDE用的是Eclipse

主要的结构为:

以下是三个JAVA类的代码：

EmbededTomcat.java --->封装TOMCAT

package org.lee;

import org.apache.catalina.LifecycleException;
import org.apache.catalina.startup.Tomcat;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import java.io.File;

import javax.servlet.ServletException;

public class EmbededTomcat {
	private final Log log=LogFactory.getLog(getClass());
	private Tomcat tomcat=new Tomcat();
        private int port;
	
        public EmbededTomcat(int port){
            this.port=port;
        }
	public void start()throws Exception{
		String projectPath=new File("").getAbsolutePath();
		tomcat.setPort(port);
		try{
			tomcat.addWebapp("",projectPath+"/web");
		}catch(ServletException e){
			e.printStackTrace();
			log.error(e.getMessage());
			throw e;
		}
		try{
			tomcat.start();
		}catch(LifecycleException e){
			e.printStackTrace();
			log.error(e.getMessage());
			throw e;
		}
		log.info("Tomcat started.");
	}
	
	public void stop()throws Exception{
            try{
                tomcat.stop();
            }
            catch(LifecycleException ex){
                ex.printStackTrace();
                log.error(ex.getMessage());
                throw ex;
            }
            log.info("Tomcat stoped");
	}
        
        public void setPort(int port){
            this.port=port;
        }
        public int getPort(){
            return this.port;
        }
}

MainFrame.java ---》主窗体

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * MainFrame.java
 *
 * Created on 2011-11-27, 7:58:59
 */
package org.lee;

import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.IOException;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

/**
 *
 * @author Administrator
 */
public class MainFrame extends javax.swing.JFrame implements WindowListener{

    private EmbededTomcat et;
    private int port=8000;
    private boolean flag=false;
    private int DESKTOP_WIDTH;
    private int DESKTOP_HEIGHT;
    /** Creates new form MainFrame */
    public MainFrame() {
        initComponents();
        jTextField1.setText(String.valueOf(port));
        DESKTOP_WIDTH=Toolkit.getDefaultToolkit().getScreenSize().width;
        DESKTOP_HEIGHT=Toolkit.getDefaultToolkit().getScreenSize().height;
        setLocation((DESKTOP_WIDTH-getWidth())/2,(DESKTOP_HEIGHT-getHeight())/2);
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton4 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setResizable(false);

        jLabel1.setText("端口号:");

        jButton1.setText("进  入");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("退  出");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton4.setText("关  于");
        jButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton4ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 213, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addGap(86, 86, 86)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, 81, Short.MAX_VALUE)
                    .addComponent(jButton1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 81, Short.MAX_VALUE)
                    .addComponent(jButton4, javax.swing.GroupLayout.DEFAULT_SIZE, 81, Short.MAX_VALUE))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(25, 25, 25)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jLabel1))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton2)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 101, Short.MAX_VALUE)
                .addComponent(jButton4)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        // TODO add your handling code here:
        //使用第三方线程 EDT
        new Thread(new Runnable(){
            public void run(){
                SwingUtilities.invokeLater(new Runnable(){
                    public void run(){
                        /**------start------------ */
                        try{
            if(jTextField1.getText().equals("")){
                JOptionPane.showMessageDialog(rootPane, "璇疯緭鍏ョ鍙ｅ彿");
            }
            else{
                port=Integer.parseInt(jTextField1.getText());
                et=new EmbededTomcat(port);
                if(flag==true){
                    startIE();
                }
                else{
                    et.start();
                    startIE();
                    flag=true;
                }
            }
            /**------end------------ */
        }
        catch(Exception e){
            JOptionPane.showMessageDialog(rootPane, e.getMessage());
        }
                    }
                });
            }
        }).start();
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
        // TODO add your handling code here:
        try{
            if(et!=null){
                et.stop();
            }
            System.exit(0);
        }
        catch(Exception e){
            JOptionPane.showConfirmDialog(rootPane, e.getMessage());
        }
    }//GEN-LAST:event_jButton2ActionPerformed

    private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed
        // TODO add your handling code here:
        Aboutus about=new Aboutus(this,true);
        about.setLocation((DESKTOP_WIDTH-about.getWidth())/2,(DESKTOP_HEIGHT-about.getHeight())/2);
        about.setVisible(true);
    }//GEN-LAST:event_jButton4ActionPerformed
    /*
     * 启动IE
     */
    public void startIE()throws IOException{
        Runtime.getRuntime().exec("C://Program Files//Internet Explorer//IEXPLORE.EXE "+
                                  "http://localhost:"+port);
    }
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new MainFrame().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton4;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration//GEN-END:variables
	@Override
	public void windowActivated(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void windowClosed(WindowEvent arg0) {
		// TODO Auto-generated method stub
		try{
			if(et!=null){
				et.stop();
			}
		}
		catch(Exception ex){
			ex.printStackTrace();
		}
		
	}

	@Override
	public void windowClosing(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void windowDeactivated(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void windowDeiconified(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void windowIconified(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void windowOpened(WindowEvent arg0) {
		// TODO Auto-generated method stub
		
	}
}

Aboutus.java ---》软件信息面板

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * aboutus.java
 *
 * Created on 2011-11-27, 9:23:54
 */
package org.lee;

/**
 *
 * @author Administrator
 */
public class Aboutus extends javax.swing.JDialog {

    /** Creates new form aboutus */
    public Aboutus(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jButton1 = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

        jButton1.setText("OK");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jLabel1.setText("SuperSoft");

        jLabel2.setText("Version:1.0");

        jLabel3.setText("the software is protected.");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(301, Short.MAX_VALUE)
                .addComponent(jButton1)
                .addContainerGap())
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel2)
                .addContainerGap(280, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addContainerGap(292, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel3)
                .addContainerGap(190, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabel2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabel3)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 7, Short.MAX_VALUE)
                .addComponent(jButton1)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        // TODO add your handling code here:
        setVisible(false);
    }//GEN-LAST:event_jButton1ActionPerformed

    /**
     * @param args the command line arguments
     */
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    // End of variables declaration//GEN-END:variables
}

生成可执行的JAR文件便可运行此JAVA应用了。如果觉得要使程序大众化，即在不安装JDK或JRE的情况下使用，可参考我在

http://blog.csdn.net/tomyjohn/archive/2011/05/27/6449831.aspx这所写的如何用EXE文件启动JAR。

看到这里你好像有些想法了，如果可以这样做的话，是不是以后我所写的软件，可以不用做成C/S了，直接做成B/S，而且便于使用。如是再加上一两个内嵌的数据库，即可实现100%的可移植。

下面我将会学习如何使用db4o这个开源的面向对象的内嵌数据库。