Java 连接到 FileZilla 服务器

Java connection to FileZilla Server

就是这样,我正在尝试从 java 连接到 FileZilla FTPS 服务器。我可以登录,但是当我尝试列出文件时出现异常:

javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:946)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
    at org.apache.commons.net.ftp.FTPSClient._openDataConnection_(FTPSClient.java:619)
    at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:759)
    at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3293)
    at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3271)
    at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2930)
Caused by: java.io.EOFException: SSL peer shut down incorrectly
    at sun.security.ssl.InputRecord.read(InputRecord.java:482)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:927)

我已经尝试了所有可能的在线解决方案,但没有任何效果,这是我使用的代码(使用 apache commons-net):

FTPSClient ftps = new FTPSClient();
ftps.setTrustManager(TrustManagerUtils.getAcceptAllTrustManager()); 


ftps.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

int reply;

ftps.connect("xxx.xx.x.xx",8500);
reply = ftps.getReplyCode();

if (!FTPReply.isPositiveCompletion(reply)) {
  ftps.disconnect();
  System.err.println("FTP server refused connection.");
  System.exit(1);
}

if (!ftps.login("user", "*******")) {
  ftps.logout();
}

ftps.setBufferSize(1000);                 
ftps.execPBSZ(0);         
ftps.execPROT("P");
ftps.enterLocalPassiveMode();  
ftps.changeWorkingDirectory("/");
FTPFile[] files = ftps.listFiles();

ftps.logout();

非常感谢你们的帮助。提前致谢。

我找到了解决方案。这与会话重用有关,Apache Commons Net 有某种错误,它不允许您重用会话,我不得不实现 cyberduck 库 cyberduck source code。我希望这对以后的人有所帮助,感谢您的帮助。