chatclient.java

一个简单的socket通信的聊天对话程序

package chatroom;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import java.net.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.*;

public class chatclient {

	private JTextField textField;
	private JTextArea textArea;
	private JFrame frame;
	private String host="localhost";
	private int port=8000;
	private static Socket socket;
	  BufferedReader in;
	  InputStream Is;
	  OutputStream Os;
	  DataInputStream DIS;
	  PrintStream PS;
	  static  String clientsaid="";


	/**
	 * Launch the application
	 * @param args
	 */
	public static void main(String args[]) {
		try {
			chatclient window = new chatclient();
			window.frame.setVisible(true);
			window.getResponse();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * Create the application
	 */
	public chatclient() {
		initialize();
		 try{
		     socket=new Socket(host,port);
		     Is = socket.getInputStream();
		     PS = new PrintStream(socket.getOutputStream());//获取socket的输出流
		     in = new BufferedReader(new InputStreamReader( Is));//获取socket的输入流
		  } catch (Exception e)
		  {textArea.append("无法连接服务器");}

	}
	public void sendRequest(String request)
	{PS.println(request);
	textArea.append("client发送请求："+request+"\n");	
	}
	public void  getResponse(){
		String str = new String();
		str="wangba";
		while(true)
		{
		try{
			str=in.readLine();
		   if (str.equals(""))
			   str="wrong";
			textArea.append("server说："+str+"\n");
		//	if(str.equals("bye"))
			//		break;
			
		} catch (IOException e){textArea.append("服务器中断");}
		
		//return str;
		}
	}

	/**
	 * Initialize the contents of the frame
	 */
	private void initialize() {
		frame = new JFrame();
		frame.setName("frame_client");
		frame.setTitle("client");
		frame.getContentPane().setLayout(null);
		frame.setBounds(100, 100, 500, 375);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		textArea = new JTextArea();
		textArea.setName("c_textroom");
		textArea.setBounds(43, 39, 307, 155);
		frame.getContentPane().add(textArea);

		final JButton button = new JButton();
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				clientsaid=textField.getText();
			    {if (clientsaid==null)
			    	clientsaid=""; 
			     }		
				sendRequest(clientsaid);
				// getResponse();
				
			}
		});
		button.setName("c_button");
		button.setText("New JButton");
		button.setBounds(359, 258, 99, 23);
		frame.getContentPane().add(button);

		textField = new JTextField();
		textField.setName("c_text");
		textField.setBounds(32, 258, 299, 37);
		frame.getContentPane().add(textField);
	}

}