Question

我正在尝试开发一个通过网络传输大文件的应用程序。我试图将相同的拆分文件实现为块如何将一个大文件分成每个50kb的块？以及如何根据哈希码（用于错误控制）将其恢复原状？

Answer 1

我知道这不是你要求的，但你可以像这样传输大文件发信人：

            try
            {
             ss = new ServerSocket(9244); // try to open ServerSocket
             ready =true;
            }
            catch(Exception e)
            {

            }
        Socket bs = ss.accept(); // reciever joins 
        OutputStream out = bs.getOutputStream();
        fis = new FileInputStream(f); // you open fileinputstream of the file you want to send 

        int x = 0;
        while (true) {
            x = fis.read();
            if (x == -1) { // until fis.read() doesn't return -1 wich means file is completly read write bytes out
                break;
            }
            out.write(x);
        }
        fis.close();
        out.close();
        bs.close();
        ss.close();

Reciever：

        try {
        Socket socket  = new Socket("127.0.0.1",9244); // connect to server
        InputStream in = socket.getInputStream();
        FileOutputStream fos = new FileOutputStream(f); 
        int x = 0;
        while (true) {
            x = in.read();
            if (x == -1) { // write data into file until in.read returns "-1"
                break;
            }
            fos.write(x);
        }
        in.close();
        fos.close();
        socket.close();

希望这有点帮助

如何拆分大文件并在java

1 个答案: