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我想編寫一個FTP客戶端,我似乎無法連接到被動端口。我想最終列出目錄並下載一個文件,但我不知道該怎麼做。在Java中實現FTP - 連接到227指定的端口響應PASV命令
這是我的程序打印出來的。
PASV
227 Entering Passive Mode (73,13,156,129,217,103).
Passive Ports: 73,13,156,129,217,103
Failed to connect to port: 73
Failed to connect to port: 13
Failed to connect to port: 156
Failed to connect to port: 129
Failed to connect to port: 217
Failed to connect to port: 103
"/home/daniel">>
case 227://PASSIVE MODE
String psPorts = lastMessage.substring(lastMessage.indexOf('(')+1,lastMessage.indexOf(')'));
System.out.println("Passive Ports: " + psPorts);
for(String i : psPorts.split(",")){
Ports.add(Integer.parseInt(i));
}
for(int i: Ports){
try{
pSk = new Socket("webserver",i);
break;
}catch(Exception e){
System.out.println("Failed to connect to port: " + i);
}
}
break;
有人可以幫我嗎?非常感謝你的幫助。