• 服务器端

public class Homework03Server {public static void main(String[] args) throws IOException {// 接收文件名, 从磁盘中找到该文件发过去// 监听 9999ServerSocket serverSocket = new ServerSocket(9999);System.out.println("开始监听端口 9999 ");// 通过 ServerSocket 获取 socketSocket socket = serverSocket.accept();// 接收字符串InputStream inputStream = socket.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));String filePath = reader.readLine();// 找该文件File file = new File(filePath);BufferedInputStream bis;BufferedOutputStream bos;if (file.exists()) {// 该路径文件若存在, 发过去bis = new BufferedInputStream(new FileInputStream(file));bos = new BufferedOutputStream(socket.getOutputStream());byte[] buf = new byte[1024];int read;while ((read = bis.read(buf)) != -1) {bos.write(buf, 0, read);}} else {// 该路径文件若不存在, 发一个默认文件过去filePath = "d:\\default.mp4";file = new File(filePath);bis = new BufferedInputStream(new FileInputStream(file));bos = new BufferedOutputStream(socket.getOutputStream());byte[] buf = new byte[1024];int read;while ((read = bis.read(buf)) != -1) {bos.write(buf, 0, read);}}socket.getOutputStream();System.out.println("服务器端发送完毕... ");// 关闭资源bos.close();bis.close();reader.close();socket.close();serverSocket.close();}
}

 

• 客户端

public class Homework03Client {public static void main(String[] args) throws IOException {// 发送文件名, 然后接收文件// 设置 IP 和端口号Socket socket = new Socket("192.168.1.4", 9999);// 发送字符串OutputStream outputStream = socket.getOutputStream();BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream));writer.write("d:\\123.mp");writer.newLine();writer.flush();// 接收发过来的视频并写入 srcInputStream inputStream = socket.getInputStream();String filePath = "src\\video.mp4";BufferedInputStream bis = new BufferedInputStream(inputStream);BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));byte[] buf = new byte[1024];int read;while ((read = bis.read(buf)) != -1) {bos.write(buf, 0, read);}socket.getInputStream();// 关闭资源bos.close();bis.close();writer.close();socket.close();}
}