使用jsp和javascript进行异步文件上传(AJAX文件上传)

I am planning on having asynchronous file uploads. That is the file should be uploaded to a jsp or servlet and return something to the html/jsp page without reloading the original page. It should happen like an AJAX call. Is there any way to do it in AJAX or any other way to do it. I am planning on having asynchronous file uploa