java Socket编程（二）

 下面的程序实现通过客户端向服务器端发送输入的消息，服务器端接收消息进行打印。

服务器端程序

package com.robert.view;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.ServerSocket;import java.net.Socket;public class ServerClient {ServerSocket server = null;Socket socket = null;InputStream inputStream = null;BufferedInputStream bis = null;DataInputStream dis = null;OutputStream outputStream = null;BufferedOutputStream bos = null;DataOutputStream dos = null;public static void main(String[] args) {ServerClient serverClient = new ServerClient();serverClient.communicate();}public void communicate() {try {server = new ServerSocket(9999);while (true) {socket = server.accept();Runnable threadHandler = new ThreadHandler(socket);Thread thread = new Thread(threadHandler);thread.start();}} catch (IOException e) {e.printStackTrace();}}class ThreadHandler implements Runnable {private Socket socket;public ThreadHandler(Socket socket) {this.socket = socket;}@Overridepublic void run() {try {String showInfo = "";while (!"exit".equals(showInfo)) {inputStream = socket.getInputStream();bis = new BufferedInputStream(inputStream);dis = new DataInputStream(bis);showInfo = dis.readUTF();System.out.println(showInfo);}} catch (IOException e) {e.printStackTrace();}}}}

客户端程序

package com.robert.view;import java.io.BufferedOutputStream;import java.io.DataOutputStream;import java.io.IOException;import java.io.OutputStream;import java.net.ServerSocket;import java.net.Socket;import java.net.UnknownHostException;import java.util.Scanner;public class CustomerClient {OutputStream outputStream = null;BufferedOutputStream bos = null;DataOutputStream dos = null;public static void main(String[] args) {CustomerClient customerClient = new CustomerClient();customerClient.communication();}public void communication() {try {Socket socket = new Socket("localhost", 9999);Runnable threadHandler = new ThreadHandler(socket);Thread thread = new Thread(threadHandler);thread.start();} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}class ThreadHandler implements Runnable {Socket socket = null;public ThreadHandler(Socket socket) {this.socket = socket;}@Overridepublic void run() {try {String input = "";while (!"exit".equals(input)) {outputStream = socket.getOutputStream();bos = new BufferedOutputStream(outputStream);dos = new DataOutputStream(bos);Scanner scanner = new Scanner(System.in);input = scanner.nextLine();dos.writeUTF(input);dos.flush();}} catch (IOException e) {e.printStackTrace();}}}}