jcifs.smb.SmbException: l'accès est refusé. exception pour les répertoires smb

Question

Dans la déclaration de code ci-dessous:

SmbFileInputStream din==new SmbFileInputStream(src); 

Je tente de créer un objet SmbFileInputStream. Cette volonté fonctionne très bien si SmbFile « src » est un fichier, mais si « src » est un répertoire smb il émet une exception:

jcifs.smb.SmbException: Access is Denied. 
at jcifs.smb.SmbTransport.checkStatus(SmbTransport.java:622) 
at jcifs.smb.SmbTransport.send(SmbTransport.java:722) 
at jcifs.smb.SmbSession.send(SmbSession.java:262) 
at jcifs.smb.SmbTree.send(SmbTree.java:119) 
at jcifs.smb.SmbFile.send(SmbFile.java:785) 
at jcifs.smb.SmbFile.open0(SmbFile.java:1009) 
at jcifs.smb.SmbFile.open(SmbFile.java:1026) 
at jcifs.smb.SmbFileInputStream.<init>(SmbFileInputStream.java:73) 
at jcifs.smb.SmbFileInputStream.<init>(SmbFileInputStream.java:65) 
at testhelp.main(testhelp.java:25) 

Quel est le problème avec ce code? ou où vais-je mal?

Salut s'il vous plaît vérifier ce code:

case DOWNLOAD2: 

/*This code snippet is used to download a file/folder from smb nETWORK to android sd card. 
when I run this code its throwing some exception. It have commented where ever necessary. rest of the code is self 
explanatory. So please go through the code and please tell why this exception is thrown. 
IF POSSIBLE PLEASE ADD A PROGRESS BAR WHICH SHOULD HELP USER SAYING SOME WORK IS GOING ON. 
I have tried including a progress bar, but its not working. I ve read some materials related to this, 
but every thing makes use threads. I am not that good at threads. So is it possible to include a progess bar, 
without using threads?If possible please help me to do it. 
And this code is working file for smb files, I dont know why its throwing exception in case of directories. 
Please see why this is throwing exception.. 
So please see that the modified code contains: 
a)no exceptions 
b)a progress bar(more specifically a horizontal bar)*/ 

/*exception thrown: 
jcifs.smb.SmbException: Access is Denied. 
at jcifs.smb.SmbTransport.checkStatus(SmbTransport.java:622) 
at jcifs.smb.SmbTransport.send(SmbTransport.java:722) 
at jcifs.smb.SmbSession.send(SmbSession.java:262) 
at jcifs.smb.SmbTree.send(SmbTree.java:119) 
at jcifs.smb.SmbFile.send(SmbFile.java:785) 
at jcifs.smb.SmbFile.open0(SmbFile.java:1009) 
at jcifs.smb.SmbFile.open(SmbFile.java:1026) 
at jcifs.smb.SmbFileInputStream.<init>(SmbFileInputStream.java:73) 
at jcifs.smb.SmbFileInputStream.<init>(SmbFileInputStream.java:65) 
at testhelp.main(testhelp.java:25)*/ 


StatFs statFs = new StatFs(Environment.getExternalStorageDirectory().getAbsolutePath()); 
//if sd card is mounted then only this operation occur: 
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) 
{ 
    //object.getCount() gets the number of objects in list view 
    for(int i=0;i<object.getCount();i++) 
    { 
     //for each object in list view, if it is checked: 
     if(object.getter(i)==true) 
     { 
      SmbFileInputStream din=null; 
      FileOutputStream dout=null; 
      try 
      { 
       //I have used a hash table, which maps list view name with smb object 
       SmbFile src=map.get(object.getItem(i)); 
       long blockSize = statFs.getBlockSize(); 
       long freeSize = statFs.getFreeBlocks()*blockSize; 
       long diff=freeSize-src.length(); 
       boolean can=false; 
       if(!(diff<0)) 
       { 
        can=true; 
       } 
       if(!src.isHidden() && can) 
       { 
        try 
        { 
         if(src.isFile()) 
         { 
          din=new SmbFileInputStream(src); 
          dout=new FileOutputStream(Environment.getExternalStorageDirectory()+"/"+src.getName()); 
         } 
         else 
         { 
          din=new SmbFileInputStream(src); 
          File outputFile = new File(Environment.getExternalStorageDirectory()+"/"+src.getName()); // ADDED 
          outputFile.mkdirs(); // ADDED 
          dout=new FileOutputStream(outputFile); // CHANGED 
         } 
         int c; 
         while((c=din.read())!=-1) 
         { 
          dout.write(c); 
         } 
        } 
        finally 
        { 
         if (din != null) 
         { 
          din.close(); 
         } 
         if (dout != null) 
         { 
          dout.close(); 
         } 
        } 
       } 
       else 
       { 
        Toast.makeText(this,src.getName()+" cannot be downloaded",Toast.LENGTH_LONG).show(); 
       } 
      } 
      catch(IOException e) 
      { 
       Toast.makeText(this,"DOWNLOAD FAILED--IO EXCEPTION\n"+e,Toast.LENGTH_LONG).show(); 
      } 
     } 
    } 
} 
else 
{ 
    Toast.makeText(this,"DOWNLOAD FAILED--NO SD CARD FOUND",Toast.LENGTH_LONG).show(); 
} 
return true; 

Answer 1

Vous ne pouvez pas créer un SmbFileInputStream pour un répertoire, parce que vous ne pouvez pas lire/écrire directement à l'objet de répertoire. Un répertoire n'a aucun contenu, du moins pas de la même manière qu'un fichier a du contenu.

Si vous essayez de lire le contenu d'un répertoire, vous devriez probablement utiliser SmbFile à la place (par exemple, utilisez la méthode listFiles()). L'objet SmbFileInputStream sert uniquement à lire les informations d'un fichier.

Pour écrire un fichier dans un répertoire, faire ...

File file = new File("/mnt/sdcard/filename.txt"); 
file.mkdirs(); // this creates all the directories that are missing 
FileOutputStream os = new FileOutputStream (file); 
// now write the file data 
os.write(...); 

Dans votre code, modifiez les quelques lignes ...

try 
    { 
    din=new SmbFileInputStream(src); 
    dout=new FileOutputStream(Environment.getExternalStorageDirectory()+"/"+src.getName()); 
    int c; 
    while((c=din.read())!=-1) 

A cette ...

try 
    { 
    din=new SmbFileInputStream(src); 

    File outputFile = new File(Environment.getExternalStorageDirectory()+"/"+src.getName()); // ADDED 
    outputFile.mkdirs(); // ADDED 

    dout=new FileOutputStream(outputFile); // CHANGED 
    int c; 
    while((c=din.read())!=-1) 

changer également les points suivants ...

if(src.isFile()){ 
    din=new SmbFileInputStream(src); 
    //dout=new FileOutputStream(Environment.getExternalStorageDirectory()+"/"+src.getName());// REMOVE THIS LINE 
    File outputFile = new File(Environment.getExternalStorageDirectory()+"/"+src.getName()); // ADDED 
    outputFile.mkdirs(); // ADDED 
    dout=new FileOutputStream(outputFile); // ADDED 
} 
else { 
    //din=new SmbFileInputStream(src); // REMOVE THIS LINE 
    File outputFile = new File(Environment.getExternalStorageDirectory()+"/"+src.getName()); 
    outputFile.mkdirs(); 
    //dout=new FileOutputStream(outputFile); // REMOVE THIS LINE 
}