Java简单文件传输 socket简单文件传输示例

服务器端代码：

import java.io.*;

import java.net.*;

/**

 * Created with IntelliJ IDEA.

 * User: HYY

 * Date: 13-10-30

 * Time: 下午2:15

 * To change this template use File | Settings | File Templates.

 */

public class Server {

    public static void main(String[] args) {

        ServerSocket serverSocket;

        BufferedInputStream bufferedInputStream;//文件读取流

        DataOutputStream dataOutputStream;//向客户端发送的数据流

        try {

            serverSocket = new ServerSocket(10000);

            Socket socket = serverSocket.accept();

            System.out.println("客户端连接。");

            dataOutputStream = new DataOutputStream(socket.getOutputStream());

            bufferedInputStream = new BufferedInputStream(new FileInputStream("c:/temp.sql"));

            byte[] buffer = new byte[8192];

            int read;

            while ((read = bufferedInputStream.read(buffer)) != -1) {

                dataOutputStream.write(buffer, 0, read);

                dataOutputStream.flush();

            }

            System.out.println("文件传输完毕！");

            bufferedInputStream.close();

            dataOutputStream.close();

            socket.close();

        } catch (IOException e) {

            e.printStackTrace();

            System.exit(-1);

        }

    }

}

客户端代码：

import java.io.*;

import java.net.*;

/**

 * Created with IntelliJ IDEA.

 * User: HYY

 * Date: 13-10-30

 * Time: 下午2:29

 * To change this template use File | Settings | File Templates.

 */

public class Client {

    public static void main(String[] args) {

        DataInputStream dataInputStream;//从服务器读取数据输入流

        FileOutputStream fileOutputStream;//写入本地文件流

        try {

            Socket socket = new Socket("127.0.0.1", 10000);

            System.out.println("连上服务器。");

            dataInputStream = new DataInputStream(socket.getInputStream());

            File file = new File("d:/temp_copy.sql");

            fileOutputStream = new FileOutputStream(file);

            byte[] buffer = new byte[8192];

            int read;

            while ((read=dataInputStream.read(buffer))>0) {

                fileOutputStream.write(buffer, 0, read);

            }

            System.out.println("文件接收完毕！");

            fileOutputStream.close();

            dataInputStream.close();

            socket.close();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}