java压缩zip文件

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File zipfile = 

new File(JFinalExt.UPLOAD_PATH + "/" + caselsh + ".zip");

/**
 *  压缩单个文件
 * @param srcfile 文件名
 * @param zipfile 压缩后文件
 */

public static void ZipFile(File srcfile, java.io.File zipfile) {
    byte[] buf = new byte[1024];
    try {
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
        FileInputStream in = null;
        out.putNextEntry(new ZipEntry(srcfile.getName()));
        in = new FileInputStream(srcfile);
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.closeEntry();
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }finally{
        try {
            //把原文件删除掉
            if(srcfile.exists()){
                srcfile.delete();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}