使用java自带压缩工具实现文件压缩

public static void toZip(File[] srcFiles, OutputStream out){
        long start = System.currentTimeMillis();
        ZipOutputStream zos = null;
        try {
            zos = new ZipOutputStream(out);
            for (File srcFile : srcFiles) {
                byte[] buf = new byte[BUFFER_SIZE];//自定义大小
                zos.putNextEntry(new ZipEntry(srcFile.getName()));
                int len;
                FileInputStream in = new FileInputStream(srcFile);
                while ((len = in.read(buf)) != -1) {
                    zos.write(buf, 0, len);
                }
                zos.closeEntry();
                zos.flush();
                in.close();
            }
            long end = System.currentTimeMillis();
            log.debug("压缩完成，耗时：" + (end - start) + " ms");
        } catch (Exception e) {
            e.printStackTrace();
            log.error("系统异常：",e);
        } finally {
            if (zos != null) {
                try {
                    zos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                    log.error("系统异常：",e);
                }
            }
        }
    }