JAVA网络编程

1.Server端代码

package TCP;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;

public class Server {
	
	private Socket socket;
	private ServerSocket server;
	private BufferedReader reader;
	
	public static void main(String[] args) {
		new Server().getServer();
	}
	
	void getServer(){
		try{
			server = new ServerSocket(8888);
			server.setSoTimeout(1000*1000);
			
			System.out.println("服务器套接字创建成功...");
			while(true){
				System.out.println("等待客户端连接...");
				socket = server.accept();
				reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
				getClientMessage();
			}
			
		}catch(SocketTimeoutException e){
			System.out.println("超时啦！！！");
		}catch(Exception e){
			System.out.println("创建套接字失败...");
			e.printStackTrace();
		}
	}

	private void getClientMessage() {
		 try{
			 while(true){
				 System.out.println("客户机:"+reader.readLine());
			 }
		 }catch(Exception e){
			 	e.printStackTrace();
		 }
		
		 try{
			 if(reader != null){
				 reader.close();
			 }
			 if(socket != null){
				 socket.close();
			 }
		 }catch(Exception e){
			 e.printStackTrace();
		 }
	}
	
}

2.Client端代码

package TCP;

import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class Client extends JFrame{
	private PrintWriter writer;
	Socket socket;
	private JTextArea ta = new JTextArea();
	private JTextField tf = new JTextField();
	Container cc;
	
	public static void main(String[] args) {
		Client c = new Client("向服务器发送数据");
		c.setBounds(300,300,300,300);
		
		c.setVisible(true);
		c.connect();
	}
	
	public Client(String s) {
			super(s);
			cc = this.getContentPane();
			cc.add(ta, "North");
			cc.add(tf, "South");
			tf.addActionListener(new ActionListener() {
				
				@Override
				public void actionPerformed(ActionEvent e) {
						writer.println(tf.getText());
						ta.append(tf.getText()+'\n');
						tf.setText(" ");
				}
			});
	}
			
			private void connect(){
				ta.append("尝试连接\n");
				try{
					socket = new Socket("192.168.21.1",8888);
					writer = new PrintWriter(socket.getOutputStream(),true);
					ta.append("完成连接\n");
					
					InetAddress netAddress = socket.getInetAddress();
					System.out.println(netAddress.getHostAddress());
					System.out.println(socket.getPort());
					
				}catch(Exception e){
					e.printStackTrace();
				}
			}
	 
	
}

一、TCP部分

1）核心类

2）核心API

二、UDP部分

1）核心类

2）核心API

三、