CODEWITHSUNDEEP
javazip
nbonbon
nbonbon

Reputation: 1767

Getting a java.util.zip.ZipException when trying to create a ZipFile in JAVA?

I am getting this error:

java.util.zip.ZipException: invalid CEN header (bad signature)

and I am not quite sure what is the problem, when I search google for CEN header nothing useful is found.

Any help is appreciated, thanks.

Here is the code and it fails on the last line:

ZipFile resourceZip = null;
if (pir.getSource().endsWith("Resources.zip")) 
{
    File temp = new File( "C:\\Users\\nbonnet\\Desktop\\new\\Resources1.zip");
    byte[] bytesFromClob = ClobHelper.bytesFromClob(pir.getContents(),"latin1");
    FileOutputStream out = new FileOutputStream(temp);
    out.write(bytesFromClob);
    out.flush();
    out.close();
    resourceZip = new ZipFile(temp);  // <-- Code fails here
}

Upvotes: 0

Views: 6210

Answers (1)

Keith Randall
Keith Randall

Reputation: 23265

You're writing the file as a regular (non-ZIP) file and then trying to read it back as a ZIP file. That's not going to work. You need to write it with a ZipOutputStream.

Check out this example or this one.

Upvotes: 4

Related Questions