下载多个文件压缩为zip返回客户端

    @GetMapping("/downloadFile")
    public void downloadFile(HttpServletResponse response) {
		log.info("come in... ");
    	BufferedInputStream inputStream = null;
    	BufferedOutputStream bufferedOutputStream = null;
    	ZipOutputStream zipOutputStream = null;
    	try {
    		response.setContentType("application/octet-stream");
    		String fileName = "20201013.zip";
    		// 中文乱码问题
//			response.addHeader("Content-disposition", "attachment;filename="+new String(fileName.getBytes(), "ISO-8859-1"));
			response.addHeader("Content-disposition", "attachment;filename="+java.net.URLEncoder.encode(fileName.trim(), "UTF-8"));
			bufferedOutputStream = new BufferedOutputStream(response.getOutputStream());
			zipOutputStream = new ZipOutputStream(bufferedOutputStream);
			byte[] bs = new byte[1024];
			int len = 0;
			File[] files = new File("E:\\zhoulp\\202010").listFiles();
			for (File file : files) {
				String zipEntryName = file.getName();
				inputStream = new BufferedInputStream(new FileInputStream(file));
				ZipEntry zipEntry = new ZipEntry(zipEntryName);
				zipOutputStream.putNextEntry(zipEntry);
				while ( (len = inputStream.read(bs) ) > 0 ) {
					zipOutputStream.write(bs, 0, len);
				}
			}
    	} catch (UnsupportedEncodingException e) {
    		e.printStackTrace();
    	} catch (IOException e) {
    		e.printStackTrace();
    	} finally {
    		try {
    			if(zipOutputStream != null) {
    				zipOutputStream.closeEntry();
    				zipOutputStream.close();
    			}
    		} catch (IOException e1) {
    			e1.printStackTrace();
    		}
    		try {
    			if(inputStream != null) {
    				inputStream.close();
    			}
    		} catch (IOException e1) {
    			e1.printStackTrace();
    		}
    	}

    }