add rename

hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/CommonsFtp.java

@@ -403,6 +403,15 @@ public class CommonsFtp extends AbstractFtp {
 		return ftpFiles;
 	}
 
+	@Override
+	public boolean rename(String oldPath, String newPath) {
+		try {
+			return this.client.rename(oldPath, newPath);
+		} catch (final IOException e) {
+			throw new IORuntimeException(e);
+		}
+	}
+
 	@Override
 	public boolean mkdir(final String dir) throws IORuntimeException {
 		try {

hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/Ftp.java

@@ -127,6 +127,15 @@ public interface Ftp extends Closeable {
 	 */
 	List<String> ls(String path);
 
+	/**
+	 * 重命名文件
+	 *
+	 * @param oldPath 旧文件名（或路径）
+	 * @param newPath 新文件名（或路径）
+	 * @return 是否重命名成功
+	 */
+	boolean rename(String oldPath, String newPath);
+
 	/**
 	 * 删除指定目录下的指定文件
 	 *

hutool-extra/src/main/java/cn/hutool/v7/extra/ssh/engine/jsch/JschSftp.java

@@ -328,6 +328,16 @@ public class JschSftp extends AbstractFtp {
 		return entryList;
 	}
 
+	@Override
+	public boolean rename(String oldPath, String newPath) {
+		try {
+			getClient().rename(oldPath, newPath);
+		} catch (final SftpException e) {
+			throw new SshException(e);
+		}
+		return true;
+	}
+
 	@Override
 	public boolean mkdir(final String dir) {
 		if (isDir(dir)) {

hutool-extra/src/main/java/cn/hutool/v7/extra/ssh/engine/sshj/SshjSftp.java

@@ -188,6 +188,16 @@ public class SshjSftp extends AbstractFtp {
 		return null;
 	}
 
+	@Override
+	public boolean rename(String oldPath, String newPath) {
+		try {
+			sftp.rename(oldPath, newPath);
+			return containsFile(newPath);
+		} catch (final IOException e) {
+			throw new FtpException(e);
+		}
+	}
+
 	@Override
 	public boolean delFile(final String path) {
 		try {