udpclient.java

还不错的Java编程的网络聊天室。。。。包含客户端还有client端。。

package chat.client;

import chat.task.*;
import java.net.SocketAddress;
import java.util.Observable;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;

/**
 *UDP客户端，用于用户之间单独聊天
 *本类含有一个独立的JFrame,当发送完信息之后隐藏窗口。
 */
public class UDPClient extends Observable implements ActionListener {
	
	protected JFrame frame;
	protected UDPClientModel model;
	private JLabel label;
	private JTextPane editor;
	protected String name;
	protected String remoteName;
	protected SocketAddress remoteAddress;
	/**
	 * Method UDPClient
	 *
	 *
	 */
	public UDPClient(UDPClientModel model,String name) {
		this.model=model;
		this.name=name;
		label=new JLabel();
		
		frame=new JFrame();
		//创建编辑框
		editor=new JTextPane();
		editor.setPreferredSize(new Dimension(350,180));
		JScrollPane editorPane=new JScrollPane(editor);
		editorPane.setOpaque(false);
		//创建按钮
		JPanel buttonPane=new JPanel(new FlowLayout(FlowLayout.RIGHT));
		buttonPane.setOpaque(false);
		KeyStroke stroke=KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,ActionEvent.CTRL_MASK,true);
		Setting.createButton("关闭(C)",'C',"close",null,buttonPane,this);
		Setting.createButton("发送(S)",'C',"send",stroke,buttonPane,this);
		
		JPanel contentPane=new JPanel(new BorderLayout());
		contentPane.setBackground(Setting.color1);
		contentPane.setBorder(BorderFactory.createEmptyBorder(15,10,10,10));
		contentPane.add(new EditToolBar(editor),BorderLayout.NORTH);
		contentPane.add(editorPane,BorderLayout.CENTER);
		contentPane.add(buttonPane,BorderLayout.SOUTH);
		frame.setContentPane(contentPane);
		frame.pack();
	}

	public void setRemoteSymbol(String name,SocketAddress address){
		remoteName=name;
		remoteAddress=address;
		frame.setTitle(remoteName+" - 发送消息");
	}
	
	//按指定窗口的位置显示
	public void showIn(Component owner){
		frame.setLocationRelativeTo(owner);
		frame.show();
	}
	
	//发送信息过程
	protected boolean send()throws java.io.IOException {
		DefaultStyledDocument doc=(DefaultStyledDocument)editor.getStyledDocument();
		if(doc.getLength()==0){
			JOptionPane.showMessageDialog(frame,"请不要发送空消息！");
			return false;
		}else{
			Information info=new Information(Information.MESSAGE,name,doc);
			model.send(info,remoteAddress);
			setChanged();
			notifyObservers(new Information(Information.MESSAGE,remoteName,doc));
			editor.setDocument(editor.getEditorKit().createDefaultDocument());
			return true;
		}
	}
	/**
	 * Method actionPerformed
	 *
	 *
	 * @param e
	 *
	 */
	public void actionPerformed(ActionEvent e) {
		// TODO: 在这添加你的代码
		String command=e.getActionCommand();
		if(command.equals("close")){
			frame.dispose();
		}else if(command.equals("send")){
			try{
				if(send()){
					frame.dispose();
				}
			}catch(Exception ie){
				ie.printStackTrace();
			}
			
		}
	}
}