socket服务端
import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
  
 //socket服务端
 public class test114 {
     public static void main(String[] args){
         ServerSocket serverSocket=null;
         Socket client=null;
         /*创建服务器套接字*/
         try {
             serverSocket=new ServerSocket( 9898 );
             while (true){//循环等待客户端连接
                 //等待客户端套接字继续连接，连接成功后返回连接的客户端套接字实例
                 System.out.println( "等待连接" );
                 serverSocket.accept();
                 System.out.println( "连接成功" );
             }
         }catch (IOException e){
             e.printStackTrace();
         }
  
     }
 }
 socket客户端import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
  
 //socket服务端
 public class test114 {
     public static void main(String[] args){
         ServerSocket serverSocket=null;
         Socket client=null;
         /*创建服务器套接字*/
         try {
             serverSocket=new ServerSocket( 9898 );
             while (true){//循环等待客户端连接
                 //等待客户端套接字继续连接，连接成功后返回连接的客户端套接字实例
                 System.out.println( "等待连接" );
                 serverSocket.accept();
                 System.out.println( "连接成功" );
             }
         }catch (IOException e){
             e.printStackTrace();
         }
  
     }
 }

运行结果