代碼如下:

package com.neusoft.edu.socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
/**
 * 服務(wù)器端代碼
 * 獲取客戶端發(fā)送的信息，顯示并且返回對(duì)應(yīng)的回復(fù)
 * 1、創(chuàng)建ServerSocket對(duì)象
 * 2、調(diào)用accept方法獲取客戶端連接
 * 3、使用輸入流讀取客戶端發(fā)送的數(shù)據(jù)
 * 4、使用輸出流向客戶端寫入數(shù)據(jù)
 * 5、關(guān)閉對(duì)應(yīng)的對(duì)象
 * @author L
 *
 */
public class ChatServer {
    /**
     * @param args
     */
    public static void main(String[] args) {
        try {
            //1、創(chuàng)建ServerSocket對(duì)象,8875為自定義端口號(hào)
            ServerSocket server = new ServerSocket(8857);

            //簡(jiǎn)單提示
            System.out.println("等待客戶端連接……");

            //2、獲取客戶端連接
            Socket client = server.accept();

            //獲取客戶端的相關(guān)信息
            System.out.println(client.getInetAddress().getHostAddress() + "連接上來了……");

            //3.1、定義輸入流和輸出流對(duì)象
            BufferedReader in = new BufferedReader(
                    new InputStreamReader(
                            client.getInputStream()));

            //用來獲取從控制臺(tái)輸入的數(shù)據(jù)，將該數(shù)據(jù)發(fā)送給客戶端
            BufferedReader inByServer = new BufferedReader(
                    new InputStreamReader(System.in));

            PrintWriter out = new PrintWriter(client.getOutputStream(), true);

            //讀取到的數(shù)據(jù)
            String data = null;
            String answer = null;

            //循環(huán)和客戶端進(jìn)行通信
            do
            {
                //3.2、讀取客戶端發(fā)送的數(shù)據(jù)
                data = in.readLine();

                //在服務(wù)器端顯示讀取到的數(shù)據(jù)
                System.out.println("客戶端發(fā)送信息：" + data);

                //獲取服務(wù)器端要發(fā)送給客戶端的信息
                System.out.print("服務(wù)器端回復(fù)客戶端：");
                answer = inByServer.readLine();

                //3.3、將數(shù)據(jù)寫入到客戶端
                out.println(answer);
                out.flush();
            }while(!"bye".equals(data));

            //4、關(guān)閉相關(guān)資源
            out.flush();
            in.close();
            inByServer.close();
            out.close();

            //關(guān)閉Socket對(duì)象
            client.close();
            server.close();

            System.out.println("服務(wù)器端關(guān)閉……");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

復(fù)制代碼代碼如下: