socket链接

服务端：
package com.batch.service.impl;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class serverSoecktMain {
    public static void main(String[] args) {
           ServerSocket server = null;
           Socket socket = null;
           BufferedReader br = null;
           PrintWriter pr =null;
          try {
               try {
                server = new ServerSocket(6666);
               } catch (Exception e) {
                System.out.println("can not listen to:" + e);
               }
               System.out.println("server------------------------------");
               try {
                socket = server.accept();
               } catch (Exception e) {
                System.out.println("Error." + e);
               }
               br= new BufferedReader(new InputStreamReader(socket.getInputStream()));
               pr= new PrintWriter(socket.getOutputStream());
               pr.println("服务端：this is a server");
               pr.flush();
               System.out.println("Client:" + br.readLine());
              } catch (Exception e) {
               System.out.println("Error:" + e);
              } finally{
                  try {
                    server.close();
                    socket.close();
                    br.close();
                    pr.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
              }
    }
}

客户端：
package com.batch.service.impl;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;

public class serverMain {
    public static void main(String[] args) {
        Socket socket= null;
        PrintWriter pr= null;
        BufferedReader br = null;
        try {
               socket = new Socket("127.0.0.1",6666);
               pr = new PrintWriter(socket.getOutputStream());
               br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
               System.out.println("Client------------------------------");
               pr.println("client is good!");
               pr.flush();
               System.out.println("Server:" + br.readLine());
              } catch (Exception e) {
               System.out.println("Error" + e); //错则打印错信息
              } finally{
                  try {
                    socket.close();
                    pr.close();
                    br.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
              }
    }
}