자바 압축 잘못된 코드

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

public class CompressEncodingTest {
    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        File f = new File("中文测试.txt");
        ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(
            new FileOutputStream("zipTest.zip"), 1024));
        zos.putNextEntry(new ZipEntry("中文.txt"));
        DataInputStream dis = new DataInputStream(new BufferedInputStream(
            new FileInputStream(f)));
        zos.putNextEntry(new ZipEntry(f.getName()));
        int c;
        while ((c = dis.read()) != -1) {
            zos.write(c);
        }

        zos.setEncoding("gbk");
        zos.setComment("中文测试");

        zos.closeEntry();
        zos.close();
    }
}