一个撇脚的java压缩文件工具类

今天弄里一个压缩文件的工具类，功能不是很完善，只支持压缩后单级目录，二级文件夹的文件名好像只能用中文，并且解压后还是乱码。请各位高手大侠批评指教，不胜感激!

package tests;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipUtil {
    private static File zip;
    private static ZipOutputStream zipOut;
    private InputStream input;
    public ZipUtil(){
        try {
            zipOut = new ZipOutputStream(new FileOutputStream(zip));
            zipOut.setComment("hello2");
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
    public void zipFile(File file) {
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            for (int i = 0; i < files.length; i++) {
                if (files[i].isDirectory()) {
                    zipFile(files[i]);
                } else {
                    try {
                        input = new FileInputStream(files[i]);
                        zipOut.putNextEntry(new ZipEntry(file.getName()
                                + File.separator + files[i].getName()));
                        int temp = 0;
                        while ((temp = input.read()) != -1) {
                            zipOut.write(temp);
                        }
                        input.close();
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            try {
                zipOut.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } else {
            try {
                input = new FileInputStream(file);
                zipOut.putNextEntry(new ZipEntry(file.getName()));
                int temp = 0;
                while ((temp = input.read()) != -1) {
                    zipOut.write(temp);
                }
                input.close();
                zipOut.close();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) {
        zip = new File("d:" + File.separator + "hello.rar");
        File file = new File("d:" + File.separator + "hello");
        new ZipUtil().zipFile(file);
    }
}