Java Socket编程服务端多线程图片上传demo

最新推荐文章于 2024-09-12 14:53:14 发布

原创最新推荐文章于 2024-09-12 14:53:14 发布 · 125 阅读

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#socket #java #iostream

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本文介绍了一个简单的文件传输案例，包括服务端和客户端的Java代码实现。服务端监听特定端口接收文件，并将接收到的文件保存到指定目录下；客户端则负责发送本地文件到服务端。通过BufferedInputStream和BufferedOutputStream进行数据读写，实现了高效的文件传输。

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1、服务端

package ztest;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
/**
 * 服务端
 * @author Caro
 *
 */
public class UploadServer {
	public static void main(String[] args) throws IOException {
		ServerSocket ss = new ServerSocket(10001);
		while(true){
			Socket s = ss.accept();
			new Thread(new UploadTask(s)).start();
		}
	}
}

class UploadTask implements Runnable{
	private Socket s;
	public UploadTask(Socket s){
		this.s = s;
	}
	@Override
	public void run() {
		String ip = s.getInetAddress().getHostAddress();
		File dir = new File("d:/");
		File file = new File(dir, ip + "-" + System.currentTimeMillis() + ".jpg");
		try {
			BufferedInputStream in = new BufferedInputStream(s.getInputStream());
			BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(file));
			byte[] b = new byte[1024];
			int len = 0;
			while((len = in.read(b)) != -1){
				out.write(b);
				out.flush();
			}
			out.close();
			in.close();
			s.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
}

2、客户端

package ztest;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
/**
 * 客户端
 * @author Caro
 *
 */
public class UploadClient {
	public static void main(String[] args) throws UnknownHostException, IOException {
		Socket s = new Socket("192.168.1.101", 10001);
		File file = new File("d:/abc.jpg");
		BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
		BufferedOutputStream out = new BufferedOutputStream(s.getOutputStream());
		byte[] b = new byte[1024];
		int len = 0;
		while((len = in.read(b)) != -1){
			out.write(b, 0, len);
			out.flush();
		}
		out.close();
		in.close();
		s.close();
	}
}