JAVA基础篇—模拟服务器与客户端通信

最新推荐文章于 2022-04-21 14:58:02 发布

转载最新推荐文章于 2022-04-21 14:58:02 发布 · 889 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/lc-java/p/7397909.html

文章标签：

#java

本文提供了一个Java实现的TCP客户端与服务器之间的简单通信实例。客户端能够向服务器发送消息，服务器接收并处理这些消息后再返回给客户端。通过两个不同的类实现这一过程，演示了基本的输入输出流操作。

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第一种：

客户端class Client

package 服务器发送到客户端;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class Client {
     public static void main(String[] args) {
    	 try {
				Socket socket=new Socket("127.0.0.1", 6666);
				System.out.println("�ͻ��������ӡ���");
					   
 		        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 		        PrintWriter writer=new PrintWriter(socket.getOutputStream());
				BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
				String readline;
				readline=br.readLine();
				
				while (!readline.equals("end")) {
					writer.println(readline);
					writer.flush();
					System.out.println("�ͻ���˵��"+readline);
					System.out.println("��������"+in.readLine());
					readline=br.readLine();
				}
				writer.close();
				in.close();
				socket.close();		
    	 } catch (Exception e) {
				// TODO Auto-generated catch block
				System.out.println("��������"+e);
			}
     }
}

　　服务器端class Server

package 服务器发送到客户端;

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

public class Server {
    	public static void main(String[] args) throws IOException{
    		Server server=new Server();
    		server.onServer();
    		
		}
    	public void onServer(){
    		ServerSocket server=null;
      	try {
    		try {
				server=new ServerSocket(6666);
				System.out.println("�ȴ��ͻ�������");
			} catch (Exception e) {
				// TODO Auto-generated catch block
				System.out.println("��������"+e);
			}
    		Socket socket=null;
    		try {
				socket=server.accept();
				System.out.println("������������");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				System.out.println("Error."+e);
			}
    		String line;
  
				BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			
				PrintWriter writer=new PrintWriter(socket.getOutputStream());
				BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
				System.out.println("�ͻ��ˣ�"+in.readLine());
				line=br.readLine();
				while (!line.equals("end")) {
					writer.println(line);
					writer.flush();
					System.out.println("������˵��"+line);
					System.out.println("�ͻ��ˣ�"+in.readLine());
					line=br.readLine();
				}
				writer.close();
				in.close();
				server.close();
				socket.close();				
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
    		
    		
    	}
}

　　第二种：

客户端class TCPClient

package 服务器发送到客户端;

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

public class TCPClient {
     public static void main(String[] args) throws UnknownHostException,IOException{
    	 try {
				Socket socket=new Socket("127.0.0.1", 6666);
				System.out.println("�ͻ��������ӡ���");
					   
		        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		        PrintWriter writer=new PrintWriter(socket.getOutputStream());//�����
		        String readline;
				readline=br.readLine();
				writer.println(readline);
				writer.flush();
				System.out.println("�ͻ���˵��"+readline);
				
				BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));//�õ�������													
					System.out.println("��������"+in.readLine());
				
				writer.close();
				in.close();
				socket.close();		
 	 } catch (Exception e) {
				// TODO Auto-generated catch block
				System.out.println("��������"+e);
			}
	}
}

　　服务器端class TCPServer

package 服务器发送到客户端;

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.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class TCPServer {
    public static void main(String[] args) throws IOException{
		ServerSocket server=null;
  	try {
		try {
			server=new ServerSocket(6666);
			System.out.println("�ȴ��ͻ�������");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			System.out.println("��������"+e);
		}
		Socket socket=null;
		try {
			socket=server.accept();
			System.out.println("������������");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			System.out.println("Error."+e);
		}
		String line;
			BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));//�õ�������
			line=in.readLine();
			System.out.println("�ͻ��ˣ�"+line);
			
			
			ArrayList<Integer> list = new ArrayList<Integer>();
			Scanner scanner=new Scanner(line);
			while (scanner.hasNext()) {
				list.add(scanner.nextInt());
			}
			// ��һ���ַ����ָ�Ϊ���ַ���,Ȼ�?����Ϊ�ַ������鷵�ء�
			
				
			Collections.sort(list);
			
			PrintWriter writer=new PrintWriter(socket.getOutputStream());//�����						
				writer.println(list);
				writer.flush();
				System.out.println("������˵��"+list);
				
			
			writer.close();
			in.close();
			server.close();
			socket.close();		
			scanner.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
				
	}
}

转载于:https://www.cnblogs.com/lc-java/p/7397909.html