Convert a FileObject into a File

问题:

I'm using Apache Commons VFS2 (Virtual File System) to monitor change file in directory. org.apache.commons.vfs2.FileListener return org.apache.commons.vfs2.FileObject. How Convert a org.apache.commons.vfs2.FileObject into a java.io.File

回答1:

You can use

new File(fileobject.getName().getPath());

Note that a VFS file object does not necessarily references a real File, it can also reference a file within a zip file for example. Depends on the resolver you used to obtain a file object.

Additional references:

1. [VFS-443] Need an easy way to convert from a FileObject to a File - ASF JIRA.

回答2:

fileobject.getURL().getFile()

should work. The caveat is that we need to convert it first to a Java URL object, which can then be used to resolve the file.

回答3:

org.apache.commons.vfs2.FileObjectis an interface. My guess is, that you are working with the following implementation org.apache.commons.vfs2.provider.local.LocalFile

This class offers the method getLocalFile()which return an object of the class java.io.File

If you are not dealing with a LocalFile most of the other implementations offer doGetInputStream() which can be used to create a File object