How do I use JCIFS with apache VFS to access an SMB URL - part 2?

问题

I had the same problem: How do I use JCIFS with apache VFS to access an SMB URL?

... after including commons-vfs-sandbox-2.1-SNAPSHOT.jar in the classpath I now get this exception:

Exception in thread "main" org.apache.commons.vfs2.FileSystemException: Could not determine the type of file "smb://10.10.18.210/CIFS/123/asd".
    at org.apache.commons.vfs2.provider.AbstractFileObject.attach(AbstractFileObject.java:1522)
    at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:489)
    at org.apache.commons.vfs2.provider.AbstractFileObject.exists(AbstractFileObject.java:477)
    at VFSTest.main(VFSTest.java:19)
Caused by: jcifs.smb.SmbAuthException: Logon failure: account currently disabled.
    at jcifs.smb.SmbTransport.checkStatus(SmbTransport.java:549)
    at jcifs.smb.SmbTransport.send(SmbTransport.java:667)
    at jcifs.smb.SmbSession.sessionSetup(SmbSession.java:390)
    at jcifs.smb.SmbSession.send(SmbSession.java:218)
    at jcifs.smb.SmbTree.treeConnect(SmbTree.java:176)
    at jcifs.smb.SmbFile.doConnect(SmbFile.java:911)
    at jcifs.smb.SmbFile.connect(SmbFile.java:954)
    at jcifs.smb.SmbFile.connect0(SmbFile.java:880)
    at jcifs.smb.SmbFile.queryPath(SmbFile.java:1335)
    at jcifs.smb.SmbFile.exists(SmbFile.java:1417)
    at jcifs.smb.SmbFile.isDirectory(SmbFile.java:1490)
    at org.apache.commons.vfs2.provider.smb.SmbFileObject.createSmbFile(SmbFileObject.java:118)
    at org.apache.commons.vfs2.provider.smb.SmbFileObject.doAttach(SmbFileObject.java:70)
    at org.apache.commons.vfs2.provider.AbstractFileObject.attach(AbstractFileObject.java:1505)
    ... 3 more

Please advice.

回答1:

I think I know what your problem is, the sandbox providers are not registered automatically in 2.0. And also you need to actually use the configured authentication properties in the resolve call (see modified source below).

I typically not use the default filesystem manager but register my providers dynamically, but if you want to use the automatic detection, you need to add vfs-providers.xml to the sandbox JAR.

This is how you build a complete working JAR with 2.0:

> git clone https://github.com/apache/commons-vfs.git -b commons-vfs2-project-2.0 vfs2.0
> cd vfs2.0
> notepad sandbox\pom.xml
> notepad sandbox\src\test\java\org\apache\commons\vfs2\provider\smb\test\StandaloneMain.java
> mvn -Pinclude-sandbox -DskipTests=true clean package dependency:tree

When you edit the sandbox/pom.xml, you need to make sure to remove -SANDBOX from <version> and <parent><version> tags. Then you need to add:

  <resource>
    <directory>src/main/resources</directory>
  </resource>

to the already existing <resources> tag (right after first LICENSE+NOTICE include line 88)

This is the test code used:

package org.apache.commons.vfs2.provider.smb.test;

import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.FileSystemManager;
import org.apache.commons.vfs2.FileSystemOptions;
import org.apache.commons.vfs2.VFS;
import org.apache.commons.vfs2.auth.StaticUserAuthenticator;
import org.apache.commons.vfs2.impl.DefaultFileSystemConfigBuilder;


public class StandaloneMain
{
    public static void main(String[] args) throws FileSystemException {
        //jcifs.Config.registerSmbURLHandler();
        StaticUserAuthenticator auth = new StaticUserAuthenticator("DOMAIN", "eckenfel", "SECRET");
        FileSystemOptions opts = new FileSystemOptions();
        DefaultFileSystemConfigBuilder.getInstance().setUserAuthenticator(opts, auth);
        FileSystemManager fs = VFS.getManager();
        if (!fs.hasProvider("smb")) throw new RuntimeException("Provide missing");
        System.out.println("Connecting " + args[0] + " with " + opts);
        FileObject smbFile = fs.resolveFile(args[0], opts); // added opts!
        System.out.println(smbFile.exists() + " " + smbFile.getContent().getLastModifiedTime());
    }
}

And this is the execution:

> set REP=C:\Users\USERNAME\.m2\repository
> java -cp sandbox\target\commons-vfs2-sandbox-2.0.jar;^
           core\target\commons-vfs2-2.0.jar;^
           %REP%\commons-logging\commons-logging\1.1.1\commons-logging-1.1.1.jar;^
           %REP%\jcifs\jcifs\0.8.3\jcifs-0.8.3.jar;^
           sandbox\target\test-classes
       org.apache.commons.vfs2.provider.smb.test.StandaloneMain smb://HOST/Users
Jan 05, 2015 2:40:19 PM org.apache.commons.vfs2.VfsLog info
INFORMATION: Using "C:\Users\USERNAME\AppData\Local\Temp\vfs_cache" as temporary files store.
Connecting smb://eckenfels02/Users with org.apache.commons.vfs2.FileSystemOptions@27dd2ec5
true 0

来源：https://stackoverflow.com/questions/27779254/how-do-i-use-jcifs-with-apache-vfs-to-access-an-smb-url-part-2