为什么FTPClient listFiles 返回的总是0，该怎么解决

Answer 1

下面是我写过关於FTPClient，看对你有没有一点帮助
package com.XXXX;
import or.ftp.FTPClient;
import or.ftp.FTPFile;
import or.ftp.FTPReply;
import java.io.*;
import java.net.SocketException;
public class myFtpClient {
protected FTPClient FTP_;
protected String host;
protected int port = 21;
protected String userID;
protected String password;
public myFtpClient() {
FTP_ = new FTPClient();
}
public myFtpClient(String host, String userID, String password) {
this.host = host;
this.userID = userID;