TCP协议的多线程实现多个客户端上传文件

package cn.idcast14;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;

public class ClientDemo {
	public static void main(String[] args) throws IOException {
		Socket s = new Socket("192.168.1.115", 12345);
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
				s.getOutputStream()));
		 BufferedReader br = new BufferedReader(new FileReader("Aa.java"));
		String line = null;
		while ((line = br.readLine()) != null) {
			bw.write(line);
			bw.newLine();
			bw.flush();
		}
		s.shutdownOutput();
		BufferedReader brClient = new BufferedReader(new InputStreamReader(
				s.getInputStream()));
		String str = brClient.readLine();
		System.out.println(str);
		br.close();
		s.close();

	}
}

　　

package cn.idcast14;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerDemo {
	public static void main(String[] args) throws IOException {
		ServerSocket ss = new ServerSocket(12345);
		//注意while(true)
		while (true) {
			Socket s = ss.accept();
			new Thread(new UserThread(s)).start();  
			/*
			 * 上面一步相当于
			 * UserThread ut = new UserThread(s);
			   Thread t = new Thread(ut);
			   t.start();
			 */
		}
	}
}

　

package cn.idcast14;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;

public class UserThread implements Runnable {
	private Socket s;

	public UserThread(Socket s) {
		this.s = s;
	}

	@Override
	public void run() {
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(
					s.getInputStream()));
			String newName = System.currentTimeMillis() + ".java";
			BufferedWriter bw = new BufferedWriter(new FileWriter(newName));
//			BufferedWriter bw = new BufferedWriter(new FileWriter("Ip.java"));
			String line = null;
			while ((line = br.readLine()) != null) {
				bw.write(line);
				bw.newLine();
				bw.flush();
			}
			BufferedWriter bwServer = new BufferedWriter(
					new OutputStreamWriter(s.getOutputStream()));
			bwServer.write("文件上传成功");
			bwServer.newLine();
			bwServer.flush();

			s.close();
			bw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}

　　

转载于:https://www.cnblogs.com/zengjiao/p/6575900.html