java socket tcp通讯，多个客户端连接服务器简单例子

下面是编程之家 jb51.cc 通过网络收集整理的代码片段。

编程之家小编现在分享给大家，也给大家做个参考。

import java.net.*;  
import java.io.*;  
  
public class Tcpserver {  
	
	public Tcpserver() throws Exception{
		ServerSocket ss = new ServerSocket(6666);
        while (true) {  
            Socket s = ss.accept();  
            new ServerThread(s).start();
            
        }
	}
    public static void main(String[] args) throws Exception {  
       new Tcpserver();
  
    }  
    
    protected class ServerThread extends Thread{
    	 Socket s;
    	public ServerThread(Socket s1){
    		s = s1;
    	}
    	public void run(){
    		 System.out.println("a client connect!");  
    		try{
                DataInputStream dis = new DataInputStream(s.getInputStream());//服务器通过输入管道接收数据流  
                String str;
          		while((str = dis.readUTF()).length() > 0){
                    System.err.println(str);//输出读入的数据  
          		}

    		}
    		catch(Exception ex){
    			ex.printstacktrace();
    		}

    	}
    }
}

客户端

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.DataOutputStream;
import java.io.OutputStream;
import java.net.socket;
import javax.swing.JTextField;

public class TCPClientFrame extends JFrame {
	Socket s;
	DataOutputStream dos;
	private JPanel contentPane;
	private JTextField textField;
	private JButton button;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokelater(new Runnable() {
			public void run() {
				try {
					TCPClientFrame frame = new TCPClientFrame();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printstacktrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public TCPClientFrame() {
		setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100,100,450,300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5,5,5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JButton btnNewButton = new JButton("连接");
		btnNewButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try{
					s = new Socket("127.0.0.1",6666);  
			        OutputStream os = s.getoutputStream();  //得到输出管道  
			        dos = new DataOutputStream(os);//创建数据传输流  
				}
				catch(Exception ex){
					ex.printstacktrace();
				}
			}
		});
		btnNewButton.setBounds(10,10,93,23);
		contentPane.add(btnNewButton);
		
		JButton btnNewButton_1 = new JButton("发消息");
		btnNewButton_1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try{
					 dos.writeUTF(textField.getText());//客户端传输数据  
				     dos.flush();  
				}
				catch(Exception ex){
					ex.printstacktrace();
				}
			}
		});
		btnNewButton_1.setBounds(141,23);
		contentPane.add(btnNewButton_1);
		
		textField = new JTextField();
		textField.setBounds(10,56,66,21);
		contentPane.add(textField);
		textField.setColumns(10);
		
		button = new JButton("自动发消息");
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try{
					while(true){
						 dos.writeUTF("======自动发的消息");//客户端传输数据  
					     dos.flush();  
					}
					
				}
				catch(Exception ex){
					ex.printstacktrace();
				}
			}
		});
		button.setBounds(314,23);
		contentPane.add(button);
	}
}

以上是编程之家(jb51.cc)为你收集整理的全部代码内容，希望文章能够帮你解决所遇到的程序开发问题。

如果觉得编程之家网站内容还不错，欢迎将编程之家网站推荐给程序员好友。