login.java

连接测试系统

package com.cnu.cie.olts.client;

import java.awt.BorderLayout;
import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.security.MessageDigest;

import javax.swing.BoxLayout;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFormattedTextField;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;

import com.cnu.cie.olts.client.admin.AdminFrame;
import com.cnu.cie.olts.client.student.StudentFrame;
import com.cnu.cie.olts.client.teacher.TeacherFrame;


/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class Login extends javax.swing.JFrame {
	private JLabel jLabel1;
	private JLabel pslabel;
	private JLabel statelabel;
	private JComboBox statecombobox;
	private JButton loginbt;
	private JTextField porttext;
	private JLabel portlabel;
	private JTextField iptext;
	private JLabel iplabel;
	private JButton settingbt;
	private JPasswordField pstext;
	private JTextField IDtext;
	
	private boolean unfold=false;
	
	static Socket socket;	
	static BufferedReader bufreader=null;
	static PrintWriter pswriter=null;
	public static String id=null;
	public static String ps=null;
	public static String status=null;
	public static String serverip=null;
	public static int    serverport=5000;
	/**
	* Auto-generated main method to display this JFrame
	*/
	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				Login inst = new Login();
				inst.setLocationRelativeTo(null);
				inst.setVisible(true);
			}
		});
	}
	
	public Login() {
		super();
		initGUI();
	}
	
	//实现关闭登录程序要进行的操作
	  protected void processWindowEvent(WindowEvent e)          
	 {
	    super.processWindowEvent(e);
	    if (e.getID() == WindowEvent.WINDOW_CLOSING) {	    	
			try {
				if(socket!=null&&!socket.isClosed()){
					socket.close();
					socket=null;
				}
				if(bufreader!=null)
					bufreader.close();
				if(pswriter!=null)
					pswriter.close();
			} catch (IOException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
			System.exit(0);
	    }
	  }
	
	private void initGUI() {
		try {
			setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
			getContentPane().setLayout(null);
			this.setTitle("\u767b\u5f55\u8054\u673a\u6d4b\u8bd5\u7cfb\u7edf");
			{
				jLabel1 = new JLabel();
				getContentPane().add(jLabel1);
				jLabel1.setText("\u7528\u6237\u540d");
				jLabel1.setBounds(45, 31, 47, 21);
				jLabel1.setName("idlabel");
			}
			{
				IDtext = new JTextField();
				getContentPane().add(IDtext);
				IDtext.setBounds(99, 31, 119, 21);
				IDtext.setName("idtext");
			}
			{
				pslabel = new JLabel();
				getContentPane().add(pslabel);
				pslabel.setText("\u5bc6    \u7801");
				pslabel.setBounds(45, 66, 47, 19);
			}
			{
				pstext = new JPasswordField();
				getContentPane().add(pstext);
				pstext.setBounds(99, 64, 119, 21);
			}
			{
				statelabel = new JLabel();
				getContentPane().add(statelabel);
				statelabel.setText("\u8eab    \u4efd");
				statelabel.setBounds(45, 97, 47, 14);
			}
			{
				ComboBoxModel statecomboboxModel = 
					new DefaultComboBoxModel(
							new String[] { "学生", "教师" ,"管理员" });
				statecombobox = new JComboBox();
				getContentPane().add(statecombobox);
				statecombobox.setModel(statecomboboxModel);
				statecombobox.setBounds(99, 94, 79, 21);
			}
			{
				loginbt = new JButton();
				getContentPane().add(loginbt);
				loginbt.setText("\u767b\u5f55");
				loginbt.setBounds(159, 134, 68, 21);
				loginbt.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent evt) {
						loginbtActionPerformed(evt);
					}
				});
			}
			{
				settingbt = new JButton();
				getContentPane().add(settingbt);
				settingbt.setText("\u8bbe\u7f6e");
				settingbt.setBounds(49, 134, 65, 21);
				settingbt.addActionListener(new ActionListener()  {
				      public void actionPerformed(ActionEvent e) {
				          if(unfold)
				        	  setSize(300, 250);
				          else
				        	  setSize(300, 200);	
				          unfold=!unfold;
				        }
				      });
			}
			{
				iplabel = new JLabel();
				getContentPane().add(iplabel);
				iplabel.setText(" \u5730\u5740");
				iplabel.setBounds(25, 183, 29, 14);
			}
			{
				iptext = new JTextField();
				getContentPane().add(iptext);
				iptext.setBounds(61, 180, 85, 21);
				iptext.setText("127.0.0.1");
			}
			{
				portlabel = new JLabel();
				getContentPane().add(portlabel);
				portlabel.setText("\u7aef\u53e3");
				portlabel.setBounds(186, 183, 30, 14);
			}
			{
				porttext = new JTextField();
				getContentPane().add(porttext);
				porttext.setText("5000");
				porttext.setBounds(222, 180, 41, 21);
			}
			pack();
			this.setSize(300, 200);
			this.setResizable(false);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public  void loginbtActionPerformed(ActionEvent evt) {
		//System.out.println("loginbt.actionPerformed, event="+evt);
		//TODO add your code for loginbt.actionPerformed
		id=IDtext.getText().trim();
  	  	ps=pstext.getText().trim();
	  	status=statecombobox.getSelectedItem().toString();
	  	serverip=iptext.getText();
	  	serverport=Integer.parseInt(porttext.getText());
	  	if("".equals(id)){
	  		JOptionPane.showMessageDialog(null,"用户名不能为空","登录失败",JOptionPane.ERROR_MESSAGE);
	  		return;
	  	}
	  	if("".equals(ps)){
	  		JOptionPane.showMessageDialog(null,"密码不能为空","登录失败",JOptionPane.ERROR_MESSAGE);
	  		return;
	  	}	  	    
	  	try {
	  		if(socket!=null&&!socket.isClosed()){
				socket.close();
	  		}
	  		socket=new Socket(serverip,serverport); System.out.println("login socket is--"+socket.toString());
	  		bufreader=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			pswriter=new PrintWriter(socket.getOutputStream());
			//密码md5加密
		//	byte[]   data   =ps.getBytes();
		///	MessageDigest   md   =   MessageDigest.getInstance("MD5");   
		///	ps   =   new String(md.digest(data));   
			
			String st="LOGIN:"+id+":"+ps+":"+status;   
			pswriter.println(st);
			pswriter.flush();
			loginbt.setEnabled(false);
			new Thread(){public void run(){
				String loginfostring = "";
				try {
					loginfostring = bufreader.readLine();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					if(socket!=null&&!socket.isClosed())
						System.out.println(e.getMessage());
					loginbt.setEnabled(true);
				}
				if(loginfostring==null){
					JOptionPane.showMessageDialog(null,"网络不通或者服务器没开启服务","连接失败",JOptionPane.ERROR_MESSAGE);
					loginbt.setEnabled(true);
				}
				else if("LOGINSUCC".equals(loginfostring)){
					if("学生".equals(status))
						new StudentFrame(socket,bufreader,pswriter).setVisible(true);
					else if("教师".equals(status))
						new TeacherFrame(socket,bufreader,pswriter).setVisible(true);
					else new AdminFrame(socket,bufreader,pswriter).setVisible(true);
					setVisible(false);
				}
				else if("LOGINFAIL".equals(loginfostring)){
					JOptionPane.showMessageDialog(null,"该身份的用户名或者密码输入错误","登录失败",JOptionPane.ERROR_MESSAGE);
					loginbt.setEnabled(true);
				}
				else if("ALREADYONLINE".equals(loginfostring)){
					JOptionPane.showMessageDialog(null,"你已经在线了，不能重复登录","登录失败",JOptionPane.ERROR_MESSAGE);
					loginbt.setEnabled(true);
				}
			}}.start();
			
	  	 } catch (Exception e1) {
				// TODO Auto-generated catch block
	  		 	JOptionPane.showMessageDialog(null,"网络连接失败，请检查网络设置以及目标主机服务是否启动","登录失败",JOptionPane.ERROR_MESSAGE);
	  		 	loginbt.setEnabled(true);
	  		 	if(socket!=null&&!socket.isClosed())
					try {
						socket.close();
					} catch (IOException e) {
						System.out.println(e.getMessage());
					}
	  		 	System.out.println(e1.getMessage());
	  	 		}
	
	        System.out.println("id--"+id);
	        System.out.println("ps--"+ps);
	        System.out.println("state--"+status);
	        System.out.println("ip--"+serverip);
	        System.out.println("port--"+serverport);
	}

}