基于socket的上传下载（Java）精简版

很简单的一个例子，没有界面只有代码。

服务器端代码

package server;



import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.FileInputStream;

import java.net.ServerSocket;

import java.net.Socket;



public class AndroidServer implements Runnable {

	private ServerSocket serverSocket = null;

	private DataInputStream is;



	public void run() {

		if (serverSocket == null) {

			try {

				serverSocket = new ServerSocket(5926);

			} catch (Exception e) {

				e.printStackTrace();

			}

		}

		try {

			Socket socket = serverSocket.accept();

			is = new DataInputStream(new BufferedInputStream(new FileInputStream("D:\\test.mp4"))); // 把需要上传的文件，放入InputStream

			DataOutputStream os = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream())); // 初始化socket的OutputStream

			int count;

			byte[] buffer = new byte[1024];

			while ((count = is.read(buffer, 0, buffer.length)) != -1) { // 把文件放入socket的OutputStream中

				os.write(buffer, 0, count);

			}

			os.flush();

			serverSocket.close();

			socket.close();

		} catch (Exception e) {

			e.printStackTrace();

		}

	}



	public static void main(String[] args) {

		Thread desktopServerThread = new Thread(new AndroidServer()); // 启动服务

		desktopServerThread.start();

	}

}

客户端代码

import java.io.BufferedOutputStream;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.net.Socket;



public class test {



	public static void main(String[] args) {

		try {

			Socket socket = new Socket("192.168.0.228", 5926);

			DataInputStream dis = new DataInputStream(socket.getInputStream()); // 获取socket中的InputStream

			DataOutputStream os = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(new File("D:\\fuck")))); // 初始化OutputStream

			int count = 0;

			byte[] buffer = new byte[1024];

			while ((count = dis.read(buffer)) != -1) { // 把socket中的InputStream放入OutputStream

				os.write(buffer, 0, count);

			}

			os.close();

			socket.close(); // 上传完成，关闭socket

		} catch (Exception e) {

			e.printStackTrace();

		} finally {

		}

	}

}