Apache Commons VFS - cannot resolveFile

问题

The VFS method cannot process this URI ${jboss.server.temp.dir}/local/outgoing configured in jboss-beans.xml which is resolved to "C:\\Download\\jboss-eap-5.1.1\\server\\default\\tmp/local/outgoing" by JBoss. When I try to resolve the URI and get the file, it throws an exception. Any ideas what could be the problem?

Exception

17:35:25,024 ERROR [VfsSynchronizerConfImpl] File FromOutgoing cannot be resolved, FileSystemException:
org.apache.commons.vfs2.FileSystemException: Could not find file with URI "C:\Download\jboss-eap-5.1.1\server\default\tmp/local/outgoing" because it is a relative path, and no base URI was provided.
    at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:719)
    at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:649)
    at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:605)

DefaultFileSystemManager.class methods

public FileObject resolveFile(final String uri) throws FileSystemException
  -- this method calls the method below

public FileObject resolveFile(final FileObject baseFile, final String uri,
        final FileSystemOptions fileSystemOptions)
        throws FileSystemException
  -- this method cannot process the string and throws
     throw new FileSystemException("vfs.impl/find-rel-file.error", uri);

回答1:

I think it needs the file: scheme because the error says it's asumed to be relative.

回答2:

For other people facing with this issue: I got rid of this error by replacing

FileSystemManager fsManager = VFS.getManager();

with

StandardFileSystemManager fsManager = new StandardFileSystemManager();
fsManager.init();

This allowed me to use the file system manager multiple times without getting the error anymore described in the question. Don't forget to close you fsManager when you're done with it:

fsManager.close();

来源：https://stackoverflow.com/questions/7998574/apache-commons-vfs-cannot-resolvefile

标签

java

jboss

apache-commons-vfs