如果您的服务器是servlet容器，只需写一个 HttpServlet 执行压缩并提供文件。

If your server is a servlet container, just write an HttpServlet which does the zipping and serving the file.

您可以将servlet响应的输出流传递给 ZipOutputStream 并且zip文件将作为servlet响应发送：

You can pass the output stream of the servlet response to the constructor of ZipOutputStream and the zip file will be sent as the servlet response:

ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());

不要忘记在压缩之前设置响应mime类型，例如：

Don't forget to set the response mime type before zipping, e.g.:

response.setContentType("application/zip");

全貌：

public class DownloadServlet extends HttpServlet {

    @Override
    public void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException {
        response.setContentType("application/zip");
        response.setHeader("Content-Disposition", "attachment; filename=data.zip");

        // You might also wanna disable caching the response
        // here by setting other headers...

        try ( ZipOutputStream zos = new ZipOutputStream(response.getOutputStream()) ) {
            // Add zip entries you want to include in the zip file
        }
    }
}