实验08-Jva之网络编程.doc

实验八 网络编程 1．实验目的 （1）掌握Socket通信。 （2）掌握UDP通信 2．实验内容 实验题1 利用Socket类和ServerSocket类编写一个C/S程序，实现C/S通信。 客户端向服务器端发送Time命令，服务器端接受到该字符串后将服务器端当前时间返回给客户端；客户端向服务器端发送Exit命令，服务器端向客户端返回“Bye”后退出。 package cn.e; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.DataInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.Socket; import java.net.UnknownHostException; import java.util.Scanner; public class Client { public static void main(String[] args) { Socket client = null; InputStreamReader in = null;//将字节流变为字符流，有转换功能 OutputStreamWriter out = null; try { client = new Socket(localhost,4331); } catch (UnknownHostException e2) { // TODO Auto-generated catch block e2.printStackTrace(); } catch (IOException e2) { // TODO Auto-generated catch block e2.printStackTrace(); } try { in = new InputStreamReader(client.getInputStream()); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { out=new OutputStreamWriter(client.getOutputStream()); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } BufferedWriter bout=new BufferedWriter(out); BufferedReader bin=new BufferedReader(in); while(true){//从客户端向服务器传输数据 System.out .println(请输入Time或者Exit); Scanner reader=new Scanner(System.in); try { bout.write(reader.next()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { bout.newLine(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { bout.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } String massage = null; try { massage=bin.readLine(); } catch (IOException e) { // TODO Auto-generated catch block