Unzip Zip File Using JAVA ZipFile Class

Question

I am trying to unzip files using JAVA and It is compiling without any errors. When i am calling it from my tool, and giving absolute destination path and source path of file e.g: Source: D:\data\test.zip Destination: D:\data\op\

I am getting Error like Acess is Denied (I have Admin access of system)

Stack trace:

Extracting: test/New Text Document - Copy (2).txt java.io.FileNotFoundException: D:\Data\Op (Access is denied) at java.io.FileOutputStream.open(Native Method) at java.io.FileOutputStream.(FileOutputStream.java:179) at java.io.FileOutputStream.(FileOutputStream.java:70)

Below is the function I am calling, I believe it has to do with destination as it may ot extracting to absolute path but some temp folder where it cannot write. I tried some combination on destination but not working form my end.Please guide me how we can fix it.

public  void unzip(String zipFilePath, String destDir, String flName) throws Exception 
    {
     int BUFFER = 2048;//Buffer Size
 try 
     {
        File dir = new File(destDir);
        // Throw Exception if output directory doesn't exist

        if(!dir.exists()) 
        {
            //Print Message in Consol
        System.out.println("No Destination Directory Exists for Unzip Operation.");
        throw new Exception();
                }
         BufferedOutputStream dest = null;
         BufferedInputStream is = null;
         ZipEntry entry;
         ZipFile zipfile = new ZipFile(zipFilePath);
         Enumeration e = zipfile.entries();
         while(e.hasMoreElements()) 
         {
            entry = (ZipEntry) e.nextElement();
            System.out.println("Extracting: " +entry);
            is = new BufferedInputStream (zipfile.getInputStream(entry));
            int count;
            byte data[] = new byte[BUFFER];
            FileOutputStream fos = new FileOutputStream(destDir);
            dest = new BufferedOutputStream(fos, BUFFER);

            while ((count = is.read(data, 0, BUFFER)) != -1) 
              {
               dest.write(data, 0, count);
              }
              //Close All Streams
            dest.flush();
            dest.close();
            is.close();
          } 
         }
      catch(Exception e) 
          { 
         e.printStackTrace();
         throw new Exception();
          }

    }

Answer 1

You are trying to write to the directory

FileOutputStream fos = new FileOutputStream(destDir);

try changing it to

FileOutputStream fos = new FileOutputStream(destDir + File.separator + entry.getName ());

using the ZipFile entry 's name