logindialog.java~2~

1． 消息即时通信 2． 消息发送实现一对一、一对多等多种发送模式 3． 发送的消息实现多彩文本编辑

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
//import java.lang.Thread;
public class LoginDialog extends JDialog implements ActionListener, Runnable {
  static JFrame jframe;
  JPanel jpanel;
  JButton loginButton;
  JButton cancelButton;
  JTextField nameTextField;
  JPasswordField pdField;
  JLabel nameLabel;
  JLabel pdLabel;
  JLabel infoLabel;
  boolean isEnableChat=false;//判断是否可以聊天
  String name;//用户名
  String pd;//登陆密码
  Socket socket;
  Thread thread=null;
  DataInputStream in;
  DataOutputStream out;
  public LoginDialog() {
    super(jframe);
    jpanel=new JPanel();
    loginButton=new JButton("登陆");
    cancelButton=new JButton("取消");
    nameTextField=new JTextField(10);
    nameTextField.setText(null);
    //System.out.println(nameTextField.getText().trim());

    pdField=new JPasswordField(10);
    pdField.setText(null);
    nameLabel=new JLabel("用户名",JLabel.CENTER);
    pdLabel=new JLabel("密码",JLabel.CENTER);
    infoLabel=new JLabel("信息",JLabel.LEFT);
    setSize(200,140);
    this.setResizable(false);
    this.setTitle("登陆对话框");
    Container con=getContentPane();
    con.setLayout(new BorderLayout());
    jpanel.setLayout(new GridLayout(3,2));
    jpanel.add(nameLabel);
    jpanel.add(nameTextField);
    jpanel.add(pdLabel);
    jpanel.add(pdLabel);
    jpanel.add(pdField);
    jpanel.add(loginButton);
    jpanel.add(cancelButton);
    con.add(jpanel,"North");
    con.add(infoLabel,"South");
    loginButton.addActionListener(this);
    cancelButton.addActionListener(this);
    /*addWindowListener(new WindowAdapter(){
      public void windowClosing(WindowEvent e){
      System.exit(0);
      }});*/
    thread=new Thread(this);
  }
  public void actionPerformed(ActionEvent e){
    if(e.getSource()==loginButton){
      if((nameTextField.getText().trim())==null){//&(pdField.getPassword().toString().trim())!=null){
//        System.out.println(nameTextField.getText().trim());
        this.loginButton.setEnabled(false);
        this.setName(nameTextField.getText().trim());
        this.setPd(pdField.getPassword().toString().trim());
        try {
          out.writeUTF("LOGIN_NAME:" + name + "LOGIN_PD:" + pd);
        }
        catch (IOException ioe) {
          this.infoLabel.setText("网络传输错误！");
        }
      }
      else{
        this.infoLabel.setText("请输入用户名和密码！");
      }

    }
    else if(e.getSource()==cancelButton){
      System.exit(0);
    }
  }
  public String getName(){
    return name;
  }
  public void setName(String name){
    this.name=name;
  }
  public void setPd(String pd){
    this.pd=pd;
  }
  public void setEnableChat(boolean enableChat){
    this.isEnableChat=enableChat;
  }
  public boolean enableChat(){
    return isEnableChat;
  }
  public void setConnection(Socket socket,DataInputStream in,DataOutputStream out){
    this.socket=socket;
    this.in=in;
    this.out=out;
    try{
      //thread.start();
    }catch(Exception e){

    }
  }
  public void run(){
    String message=null;
    while(true){
      if(in!=null){
        try {
          message = in.readUTF();
        }
        catch (IOException e) {
          this.infoLabel.setText("网络传输发生错误！");
        }
      }
      if(message.startsWith("LOGIN_SUCCED")){
       this.setEnableChat(true);
       this.setVisible(false);
      }
      else if(message.startsWith("LOGIN_ERROR")){
        this.infoLabel.setText("登陆错误！");
        this.loginButton.setEnabled(true);
      }

    }

  }
  public static void main(String[] args) {
    LoginDialog loginDialog = new LoginDialog();
    loginDialog.setVisible(true);
  }
}