采用commons-fileupload.jar结合servlet实现上传,正常流程可以跑通。
但是当文件超过 setFileSizeMax(10 * 1024 * 1024) 设定的10M时,前端没有得到任何应答
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
resp.setContentType("text/html");
OutputStream os = resp.getOutputStream();
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload fu = new ServletFileUpload(factory);
fu.setFileSizeMax(10 * 1024 * 1024);
try {
fu.parseRequest(req);
os.write("yes".getBytes("utf-8"));
} catch (FileUploadException e) {
e.printStackTrace();
os.write("no".getBytes("utf-8"));
}
os.flush();
}