chatserverframe.java

Java实例入门

package simplechatserver;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;

/**
 * Title:        网络聊天程序的服务器端
 * Description:
 * Copyright:    Copyright (c) 2001
 * Company:
 * @author
 * @version 1.0
 */

public class ChatServerFrame extends JFrame {
  JPanel contentPane;
  JLabel statusBar = new JLabel();
  BorderLayout borderLayout1 = new BorderLayout();
  JTextField txtSerPort = new JTextField();
  JButton cmdCommand = new JButton();
  JLabel jLabel1 = new JLabel();
  JPanel jPanelHost = new JPanel();
  JTextArea txtMsg = new JTextArea();
  JTextArea txtInput = new JTextArea();
  JPanel jPanelInput = new JPanel();
  JScrollPane jScrollPaneInput = new JScrollPane();
  JPanel jPanelMain = new JPanel();
  JScrollPane jScrollPaneMsg = new JScrollPane();
  JButton cmdSend = new JButton();
  JPanel jPanelSend = new JPanel();
  GridLayout gridLayout1 = new GridLayout();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel3 = new JLabel();
  BorderLayout borderLayout2 = new BorderLayout();
  TitledBorder titledBorder1;
  Border border1;
  Border border2;
  TitledBorder titledBorder2;
  JComboBox cboClient = new JComboBox();
  servThread currencyServer;

  /**Construct the frame*/
  public ChatServerFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(ChatServerFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    titledBorder1 = new TitledBorder(BorderFactory.createEtchedBorder(Color.white,new Color(134, 134, 134)),"需要发送的内容");
    border1 = BorderFactory.createEmptyBorder();
    border2 = BorderFactory.createEtchedBorder(Color.white,new Color(134, 134, 134));
    titledBorder2 = new TitledBorder(border2,"日志");
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(401, 435));
    this.setTitle("聊天程序服务器端");
    statusBar.setText(" ");
    txtSerPort.setColumns(5);
    cmdCommand.setText("连接");
    cmdCommand.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        cmdCommand_actionPerformed(e);
      }
    });
    jLabel1.setText("请输入服务器地址:");
    jPanelInput.setLayout(borderLayout2);
    jPanelMain.setLayout(gridLayout1);
    cmdSend.setText("发送");
    cmdSend.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        cmdSend_actionPerformed(e);
      }
    });
    gridLayout1.setRows(2);
    gridLayout1.setColumns(1);
    gridLayout1.setHgap(1);
    jLabel4.setText(" ");
    jLabel3.setText(" ");
    jLabel1.setText("请输入服务端口号:");
    txtSerPort.setText("1200");
    txtSerPort.setColumns(6);
    cmdCommand.setText("Start");
    gridLayout1.setRows(2);
    gridLayout1.setColumns(1);
    jScrollPaneInput.setBorder(titledBorder1);
    jScrollPaneMsg.setBorder(titledBorder2);
    cmdSend.setText("发送至");
    contentPane.add(statusBar, BorderLayout.SOUTH);
    contentPane.add(jPanelHost,  BorderLayout.NORTH);
    jPanelHost.add(jLabel1, null);
    jPanelHost.add(txtSerPort, null);
    jPanelHost.add(cmdCommand, null);
    contentPane.add(jPanelMain, BorderLayout.CENTER);
    jPanelInput.add(jScrollPaneInput, BorderLayout.CENTER);
    jPanelInput.add(jLabel3, BorderLayout.WEST);
    jPanelInput.add(jLabel4, BorderLayout.EAST);
    jPanelInput.add(jPanelSend, BorderLayout.SOUTH);
    jPanelSend.add(cmdSend, null);
    jScrollPaneMsg.getViewport().add(txtMsg, null);
    jScrollPaneInput.getViewport().add(txtInput, null);
    jPanelMain.add(jPanelInput, null);
    jPanelMain.add(jScrollPaneMsg, null);
    jPanelSend.add(cboClient, null);
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
  void cmdCommand_actionPerformed(ActionEvent e) {
    if(cmdCommand.getText().equals("Start")){
       if(currencyServer!=null) {
          currencyServer.stopServer() ;
          currencyServer=null;
       }
       int port=Integer.parseInt(txtSerPort.getText().trim() );
       currencyServer=new servThread(port);
       currencyServer.start();
       currencyServer.setClientList(cboClient);
       currencyServer.setOutTextComponent(txtMsg);
       statusBar.setText("服务启动，端口为"+port);
       txtMsg.setText(txtMsg.getText()+"服务启动，端口为"+port+"\n");
       cmdCommand.setText("Stop");
    }
    else{
      if(currencyServer!=null) {
          currencyServer.stopServer() ;
          currencyServer=null;
       }
       statusBar.setText("服务停止");
       txtMsg.setText(txtMsg.getText()+"服务停止\n");
       cmdCommand.setText("Start");
    }

  }
  void cmdSend_actionPerformed(ActionEvent e) {
    if(currencyServer!=null){
        String strSend=txtInput.getText().trim();
        String strClient=cboClient.getSelectedItem().toString();
        synchronized(this){
           String result=(currencyServer.send(strSend,strClient)?"成功":"失败");
           txtMsg.setText(txtMsg.getText()+"向"+strClient+"发送 :"+txtInput.getText().trim()+"\n"+result+"\n");
       }
     }
  }
}