Question

我正在尝试将文件从我的计算机复制到LAN上的另一个文件。我的要求是，当我运行程序时应该有一些密码保护，这样即使他们设法运行程序也没有其他人可以发送文件。

我的服务器代码：

FileInputStream fis = null;
BufferedInputStream bis = null;
OutputStream os = null;
ServerSocket servsock = null;
Socket sock = null;
servsock = new ServerSocket(SOCKET_PORT);
String FILE_TO_SEND = "D:/Hi.txt";

while (true) {
    System.out.println("Waiting...");
    sock = servsock.accept();
    System.out.println("Accepted connection : " + sock);
    File myFile = new File(FILE_TO_SEND);
    byte[] mybytearray = new byte[(int) myFile.length()];
    fis = new FileInputStream(myFile);
    bis = new BufferedInputStream(fis);
    bis.read(mybytearray, 0, mybytearray.length);
    os = sock.getOutputStream();
    System.out.println("Sending " + FILE_TO_SEND + "(" + mybytearray.length + " bytes)");
    os.write(mybytearray, 0, mybytearray.length);
    os.flush();
    System.out.println("Done.");
}

我的客户代码：

int bytesRead;
int current = 0;
FileOutputStream fos = null;
BufferedOutputStream bos = null;
Socket sock = null;
String FILE_TO_RECEIVED = "C:/Hey.txt";
sock = new Socket(SERVER, SOCKET_PORT);
System.out.println("Connecting...");
byte[] mybytearray = new byte[10240];
InputStream is = sock.getInputStream();
fos = new FileOutputStream(FILE_TO_RECEIVED);
bos = new BufferedOutputStream(fos);
bytesRead = is.read(mybytearray, 0, mybytearray.length);
current = bytesRead;

do {
    bytesRead = is.read(mybytearray, current, (mybytearray.length - current));
    if (bytesRead >= 0) {
        current += bytesRead;
    }
} while (bytesRead > -1);

bos.write(mybytearray, 0, current);
bos.flush();
System.out.println("File " + FILE_TO_RECEIVED
        + " downloaded (" + current + " bytes read)");

此代码运行正常，文件复制没有任何故障，我也可以发送多个文件。但是我不知道如何保护这个密码，所以我可以在这里使用一些帮助。

使用密码将文件安全地复制到另一台计算机

0 个答案: