Java

Create Zip in a BinData Object

See more Zip Examples

Recursively appends files in a directory tree and writes a zip archive into a Chilkat BinData object. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkZip zip = new CkZip();

    // Initialize the zip object.  Because we will never actually write a zip file to the filesystem,
    // the filepath passed to NewZip does not matter.
    success = zip.NewZip("x.zip");
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    // Append a directory tree.  The call to AppendFiles does
    // not read the file contents or append them to the zip
    // object in memory.  It simply appends references
    // to the files so that when WriteBd, WriteZip, or WriteZipAndClose 
    // is called, the referenced files are streamed and compressed
    // into the .zip output file (or BinData object).

    boolean recurse = true;
    success = zip.AppendFiles("c:/temp/a/*",recurse);
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    // Write the zip archive into the bdZip object.
    CkBinData bdZip = new CkBinData();
    success = zip.WriteBd(bdZip);
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    // We could directly access the bytes of the zip archive, or perhaps
    // get the zip bytes in base64 format.
    String zipAsBase64 = bdZip.getEncoded("base64");
    System.out.println(zipAsBase64);

    // Or the zip can be used by some other Chilkat method call that accepts
    // a BinData object as an argument.
  }
}