文件上传
 UserName:
 File1:
 File2:

 @WebServlet("/ajaxUpload") @MultipartConfig //开启上传功能 /** * @author hh */ public class FileUploadServlet extends HttpServlet { @Override protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); //获取用户名 String userName=req.getParameter("userName"); //获取年龄 String age=req.getParameter("age"); System.out.println(userName); System.out.println(age); //获取项目部署的绝对路径 String uploadPath=req.getServletContext().getRealPath("/photos"); //构建上传的文件夹 File dir=new File(uploadPath); if(!dir.exists()){ dir.mkdir(); } //获取所有上传的Part Collection parts= req.getParts(); for (Part part:parts) { //判断上传的类型是否为空，如果为空则不执行上传 if(part.getContentType()!=null){ //获取文件名 String fileName=part.getSubmittedFileName(); //执行上传 part.write(uploadPath+File.separator+fileName); } } //响应上传成功 resp.getWriter().println("uplaod success"); } }