Java Socket编程服务器响应客户端实例代码

通过输入流来读取客户端信息，相应的时候通过输出流来实现。

服务端类的代码：

									import java.io.BufferedReader;

									import java.io.IOException;

									import java.io.InputStream;

									import java.io.InputStreamReader;

									import java.io.OutputStream;

									import java.io.PrintWriter;

									import java.net.ServerSocket;

									import java.net.Socket;

									import java.util.logging.Level;

									import java.util.logging.Logger;

									/** 

									 * 

									 * @author whn6325689 

									 */

									public class server {

									    //服务器端 

									    public static void main(String[] args) {

									        try {

									            //1.创建一个服务器端Socket，即serverSocket，指定绑定的端口，并监听此端口。 

									            ServerSocket serverSocket=new ServerSocket(8888);

									            //2.调用serverSocket的accept（）方法，等待客户端的连接 

									            System.out.println("==服务器即将启动，等待客户端的连接==");

									            Socket socket=serverSocket.accept();

									            //3.获取输入流用来读取客户端所发出的登录信息 

									            InputStream is=socket.getInputStream();

									            //字节输入流 

									            InputStreamReader isr=new InputStreamReader(is);

									            //将字节流转化为字符流 

									            //为字符流添加缓冲 

									            BufferedReader bufferedReader=new BufferedReader(isr);

									            String info=null;

									            //循环读取客户端提交的信息 

									            while((info=bufferedReader.readLine())!=null){

									                System.out.println("我是服务器，客户端提交的信息是："+info);

									            }

									            socket.shutdownInput();

									            //4.获取输出流，响应客户端的请求 

									            OutputStream os= socket.getOutputStream();

									            PrintWriter pw=new PrintWriter(os);

									            //转化为打印流 

									            pw.write("欢迎您！");

									            pw.flush();

									            //刷新缓存 

									            //5.关闭相关的资源 

									            bufferedReader.close();

									            is.close();

									            isr.close();

									            socket.close();

									            serverSocket.close();

									            os.close();

									            pw.close();

									        }

									        catch (IOException ex) {

									            Logger.getLogger(server.class.getName()).log(Level.SEVERE, null, ex);

									        }

									    }

									}

客户端类的代码：

									import java.io.BufferedReader;

									import java.io.IOException;

									import java.io.InputStream;

									import java.io.InputStreamReader;

									import java.io.OutputStream;

									import java.io.PrintWriter;

									import java.net.Socket;

									import java.util.logging.Level;

									import java.util.logging.Logger;

									/** 

									 * 

									 * @author whn6325689 

									 */

									public class client {

									    //客户端 

									    public static void main(String[] args) {

									        try {

									            //1.创建客户端Socket，指定服务器地址和端口号 

									            Socket socket=new Socket("127.0.0.1", 8888);

									            //2.获取输出流，用来向服务器发送信息 

									            OutputStream os=socket.getOutputStream();

									            //字节输出流 

									            //转换为打印流 

									            PrintWriter pw=new PrintWriter(os);

									            pw.write("用户名：admin；密码：admin");

									            pw.flush();

									            //刷新缓存，向服务器端输出信息 

									            //关闭输出流 

									            socket.shutdownOutput();

									            //3.获取输入流，用来读取服务器端的响应信息 

									            InputStream is=socket.getInputStream();

									            BufferedReader br=new BufferedReader(new InputStreamReader(is));

									            String info=null;

									            while((info=br.readLine())!=null){

									                System.out.println("我是客户端，服务器端返回的信息是："+info);

									            }

									            //4.关闭资源 

									            br.close();

									            is.close();

									            pw.close();

									            os.close();

									            socket.close();

									        }

									        catch (IOException ex) {

									            Logger.getLogger(client.class.getName()).log(Level.SEVERE, null, ex);

									        }

									    }

									}