ZipClass

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipClass {
    private List<File> fileList = new ArrayList<File>();
    private File outputFile;
    private File sourceFolder;
    private List<File> ignoreFiles = new ArrayList<File>();


    public ZipClass(File outputFile, File sourceFolder, List<File> ignoreFiles){
        this.outputFile = outputFile;
        this.sourceFolder = sourceFolder;
        this.ignoreFiles = ignoreFiles;
    }

    public File zipit(){
        try{
            outputFile.getParentFile().mkdir();
            listAll(sourceFolder);
            byte[] buffer = new byte[1024];
            FileOutputStream fileOutputStream = new FileOutputStream(outputFile);
            ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
            for(File file:fileList){
                try{
                    ZipEntry zipEntry = new ZipEntry(file.getPath().substring(sourceFolder.getAbsolutePath().length()+1));
                    zipOutputStream.putNextEntry(zipEntry);

                    FileInputStream fileInputStream = new FileInputStream(file);
                    int len;
                    while((len=fileInputStream.read(buffer))>0){
                        zipOutputStream.write(buffer,0,len);
                    }
                    fileInputStream.close();
                    zipOutputStream.closeEntry();
                }catch(Exception e){
                    continue;
                }
            }
            zipOutputStream.close();
            return outputFile;
        }catch(Exception e){
            e.printStackTrace();
            return null;
        }
    }

    public void listAll(File directory){
        if(ignoreFiles.contains(directory)){
            return;
        }
        if(!directory.isDirectory()){
            fileList.add(directory);
        }
        if(directory.isDirectory()){
            try{
                for(File file:directory.listFiles()){
                    listAll(file);
                }
            }catch(Exception e){
            }
        }
    }
}