ZipFolder.java

package com.mcxiaoke.apptoolkit.compress;

import java.io.File;
import java.io.FileInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipFolder {
    // here is the code for the method
    public void zipDir(String dir2zip, ZipOutputStream zos) {
        try {
            // create a new File object based on the directory we
            // have to zip File
            File zipDir = new File(dir2zip);
            // getIcon a listing of the directory content
            String[] dirList = zipDir.list();
            byte[] readBuffer = new byte[2156];
            int bytesIn = 0;
            // loop through dirList, and zip the files
            for (int i = 0; i < dirList.length; i++) {
                File f = new File(zipDir, dirList[i]);
                if (f.isDirectory()) {
                    // if the File object is a directory, call this
                    // function again to add its content recursively
                    String filePath = f.getPath();
                    zipDir(filePath, zos);
                    // loop again
                    continue;
                }
                // if we reached here, the File object f was not
                // a directory
                // create a FileInputStream on top of f
                FileInputStream fis = new FileInputStream(f);
                // create a new zip entry
                ZipEntry anEntry = new ZipEntry(f.getPath());
                // place the zip entry in the ZipOutputStream object
                zos.putNextEntry(anEntry);
                // now write the content of the file to the ZipOutputStream
                while ((bytesIn = fis.read(readBuffer)) != -1) {
                    zos.write(readBuffer, 0, bytesIn);
                }
                // close the Stream
                fis.close();
            }
        } catch (Exception e) {
            // handle exception
        }

    }
}