new.java

本程序采用了Microsoft公司的SQL Server2000作为后台数据库。建立数据库javaicq,建立两个表

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
import java.io.*;
public class New extends JFrame {//登录窗口类
  JPanel contentPane;
//*****************
 String server;//服务器名
 int serport;//端口
  private Socket socket;
private BufferedReader in;//输入输出流
private PrintWriter out;
//***********//程序界面
  JPanel jPanel1 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JTextField jicq = new JTextField();
  JLabel jLabel3 = new JLabel();
  JPasswordField password = new JPasswordField();
  JPanel jPanel2 = new JPanel();
  JButton login = new JButton();
  JButton newuser = new JButton();
  JButton quit = new JButton();
  JLabel jLabel6 = new JLabel();
  JTextField servername = new JTextField();
  JLabel jLabel7 = new JLabel();
  JTextField serverport = new JTextField();
  public New() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
      try {   jbInit();
      server=servername.getText().toString().trim();
   serport=Integer.parseInt(serverport.getText().trim());
    } catch(Exception e) { e.printStackTrace(); }

  }
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(null);
    this.setResizable(false);
    this.setSize(new Dimension(344, 245));
    this.setTitle("New JICQ");
    //contentPane.add(text, null);
    jPanel1.setBounds(new Rectangle(2, 3, 348, 110));
    jPanel1.setLayout(null);
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel1.setText("请输入你的信息");
    jLabel1.setBounds(new Rectangle(130, 24, 103, 18));
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel2.setText("JICQ");
    jLabel2.setBounds(new Rectangle(23, 67, 42, 18));
    jicq.setFont(new java.awt.Font("Dialog", 0, 12));
    jicq.setBounds(new Rectangle(85, 65, 71, 22));
    jLabel3.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel3.setText("密码");
    jLabel3.setBounds(new Rectangle(182, 66, 46, 18));
    password.setFont(new java.awt.Font("Dialog", 0, 12));
    password.setBounds(new Rectangle(237, 66, 76, 22));
    jPanel2.setBounds(new Rectangle(8, 154, 347, 151));
    jPanel2.setLayout(null);
    login.setText("登录");
    login.setBounds(new Rectangle(14, 29, 79, 29));
    login.setFont(new java.awt.Font("Dialog", 0, 12));
    login.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        login_mouseClicked(e);
      }
    });
    newuser.setText("新建");
    newuser.setBounds(new Rectangle(121, 29, 79, 29));
    newuser.setFont(new java.awt.Font("Dialog", 0, 12));
    newuser.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        newuser_mouseClicked(e);
      }
    });
    quit.setText("退出");
    quit.setBounds(new Rectangle(229, 29, 79, 29));
    quit.setFont(new java.awt.Font("Dialog", 0, 12));
    quit.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        quit_mouseClicked(e);
      }
    });
    jLabel6.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel6.setText("服务器");
    jLabel6.setBounds(new Rectangle(27, 130, 41, 18));
    servername.setFont(new java.awt.Font("Dialog", 0, 12));
    servername.setText("LJ");
    servername.setBounds(new Rectangle(89, 128, 67, 22));
    servername.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        servername_actionPerformed(e);
      }
    });
    jLabel7.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel7.setText("端口");
    jLabel7.setBounds(new Rectangle(189, 130, 41, 18));
    serverport.setFont(new java.awt.Font("Dialog", 0, 12));
    serverport.setText("8080");
    serverport.setBounds(new Rectangle(239, 127, 78, 25));
    contentPane.add(jPanel1, null);
    jPanel1.add(jicq, null);
    jPanel1.add(jLabel3, null);
    jPanel1.add(jLabel2, null);
    jPanel1.add(password, null);
    jPanel1.add(jLabel1, null);
    contentPane.add(jPanel2, null);
    jPanel2.add(quit, null);
    jPanel2.add(login, null);
    jPanel2.add(newuser, null);
    contentPane.add(servername, null);
    contentPane.add(serverport, null);
    contentPane.add(jLabel6, null);
    contentPane.add(jLabel7, null);
  }
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
 public static void main(String[] args) {//主程序
 New f=new New();
 f.setVisible(true);

}

  void login_mouseClicked(MouseEvent e) {//登录按扭

      try{Socket socket=new Socket(InetAddress.getByName(server),serport);//连接服务器

      BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
      PrintWriter out=new PrintWriter(new BufferedWriter(
                              new OutputStreamWriter(socket.getOutputStream())),true);
out.println("login");//告诉服务器我要登录
out.println(jicq.getText());
out.println(password.getPassword());

 String str=" ";
      //do{
        str=in.readLine().trim();//从服务器读取消息
        //如果失败就告诉出错
        if(str.equals("false")) JOptionPane.showMessageDialog(this,"对不起，出错了","ok",JOptionPane.INFORMATION_MESSAGE);
       else{//如果成功就打开主程序
       this.dispose();
          int g=Integer.parseInt(jicq.getText());
            MainWin f2=new MainWin(g,server,serport);
            f2.setVisible(true);
               }

        //System.out.println("\n");
        //}while(!str.equals("ok"));
    }catch(IOException e1){}
  }

  void newuser_mouseClicked(MouseEvent e) {//新建用户按纽
  this.dispose();
JDialog d=new Register(server,serport);//打开新建窗口
d.pack();
d.setLocationRelativeTo(this);
d.setSize(400,400);
d.show();
  }

  void quit_mouseClicked(MouseEvent e) {//关闭按扭
this.dispose();
  System.exit(0);
  }

  void servername_actionPerformed(ActionEvent e) {

  }


}