[英]FTP client subdirectory creation
我正在使用FTPClient在FTP服務器中創建子目錄。 我想在“Root”下創建一個目錄“Archive”。我使用以下函數創建子目錄。
boolean s = ftNew.makeDirectory("/"+folderName+"/Archive");
但它返回false並且無法創建子目錄“Archive”。 怎么解決這個?
FTPClient的makeDirectory返回true或false,它不是非常有用且結果很模糊。 幸運的是,您可以改進代碼以報告精確的FTP狀態消息。
這就是你需要的:
private static void showServerReply(FTPClient ftpClient) {
String[] replies = ftpClient.getReplyStrings();
if (replies != null && replies.length > 0) {
for (String aReply : replies) {
System.out.println("SERVER: " + aReply);
}
}
}
在每個FTPClient方法之后調用它,例如:
package apachenet.ftp;
import java.io.IOException;
import org.apache.commons.net.ftp.FTPClient;
public class App {
public static void main( String[] args ) {
FTPClient client = new FTPClient();
FileInputStream fis = null;
try {
client.connect("127.0.0.1");
showServerReply(client);
client.login("pwyrwinski", "secret");
showServerReply(client);
System.out.println("Current working directory is: " + client.printWorkingDirectory());
String someDirectory = "nonexistentDir";
client.makeDirectory("/" + someDirectory + "/Archive");
showServerReply(client);
client.logout();
showServerReply(client);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fis != null) {
fis.close();
}
client.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private static void showServerReply(FTPClient ftpClient) {
// ...
}
}
結果在我的機器上:
SERVER: 220 (vsFTPd 2.3.5)
SERVER: 230 Login successful.
Current working directory is: "/home/pwyrwinski"
SERVER: 550 Create directory operation failed.
SERVER: 221 Goodbye.
當我將String someDirectory
更改為“home / pwyrwinski”時:
SERVER: 220 (vsFTPd 2.3.5)
SERVER: 230 Login successful.
Current working directory is: "/home/pwyrwinski"
SERVER: 257 "/home/pwyrwinski/Archive" created
SERVER: 221 Goodbye.
550
是允許或訪問被拒絕的代碼,這個和其他代碼很容易google。
我希望這能幫到您。
你應該逐步創建目錄。否則,你將獲得創建目錄false。這里有一個例子。 http://www.codejava.net/java-se/networking/ftp/creating-nested-directory-structure-on-a-ftp-server
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