Java method for determining whether a file exists on a remote server _java

In doing the data file import into the leftii is encountered a file, in doing the import sometimes generated by the original file may not exist, now by adding a judgment, to determine whether the file exists, initially thought that a simple decision file file.exists () does not exist on the line, but then it turns out that this can only Determine if a local file exists.

Here we have a clever way to tell you that the remote files are shared locally, through the computer diffraction can easily solve this problem

Process is as follows

Then enter the username and password in the following steps so that you can determine if the local presence exists.