Java为什么java ftp上传文件已损坏

Question

我尝试将图片上传到我的服务器，但是当我试图打开此图片时 - 它无法打开，显然是因为它已损坏。有人能帮帮我，告诉我为什么吗？谢谢！
我使用的是Apache Commons Net jar。

String hostName = "host";
String username = "username";
String password = "pass";
String location = "filePath.png";
FTPClient ftp = null;

InputStream in = null;
try {
    ftp = new FTPClient();
    ftp.connect(hostName);
    ftp.login(username, password);

    ftp.changeWorkingDirectory("/pictures");

    int reply = ftp.getReplyCode();
    System.out.println("Received Reply from FTP Connection:" + reply);

    if(FTPReply.isPositiveCompletion(reply))
    {
        System.out.println("Connected Success");
    }

    ftp.setFileType(FTP.BINARY_FILE_TYPE);

    File f1 = new File(location);
    in = new FileInputStream(f1);

    ftp.storeFile("fileName.png",in);

    System.out.println("SUCCESS");

    in.close();
    ftp.logout();
    ftp.disconnect();
} catch (Exception e) {
    e.printStackTrace();
}

Answer 1

我的防病毒软件阻止了它..