如何将文件从目录A移动到远程服务器中的目录B？

似乎

SftpChannel.rename();

String existingfile = "abc.jpg";String newfile = "123.jpg";FileDirectory = "/appl/user/home/test/";sftp.cd(FileDirectory+"temp/");if (sftp.get( newfile ) != null){    sftp.rename(FileDirectory + "temp/" + newfile ,         FileDirectory + newfile );    sftp.cd(FileDirectory);    sftp.rm(existingfile );}