javaee+mysql+servlet

想要做一个上传头像的和修改昵称的功能，两个input都写在一个表单里面，在servlet里面已经写好了上传到服务器地址的代码，上传的图片能正常上传，但是输入框里面的内容则无法获取到后台 不能进行到下一步操作
代码如下：

package cn.com.sczkjy.Second_handPlatformOnCmpus.manager.CheckServlet;

import cn.com.sczkjy.Second_handPlatformOnCmpus.dao.UserDao;
import cn.com.sczkjy.Second_handPlatformOnCmpus.model.User;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.List;

@WebServlet(urlPatterns = "/checkProfile")
@MultipartConfig
public class checkProfile extends HttpServlet {
    UserDao userDao = new UserDao();
    User user;
    String filePath;
    private static final long serialVersionUID = 1L;
    // 上传文件存储目录
    private static final String UPLOAD_DIRECTORY = "upload";
    // 上传配置
    private static final int MEMORY_THRESHOLD = 1024 * 1024 * 3;  // 3MB
    private static final int MAX_FILE_SIZE = 1024 * 1024 * 40; // 40MB
    private static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50; // 50MB
    /* 上传数据及保存文件 */
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        if (!ServletFileUpload.isMultipartContent(req)) {
            // 如果不是则停止
            PrintWriter writer = resp.getWriter();
            writer.println("Error: 表单必须包含 enctype=multipart/form-data");
            writer.flush();
            return;
        }
        // 配置上传参数
        DiskFileItemFactory factory = new DiskFileItemFactory();
        // 设置内存临界值 - 超过后将产生临时文件并存储于临时目录中
        factory.setSizeThreshold(MEMORY_THRESHOLD);
        // 设置临时存储目录
        factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
        ServletFileUpload upload = new ServletFileUpload(factory);
        // 设置最大文件上传值
        upload.setFileSizeMax(MAX_FILE_SIZE);
        // 设置最大请求值 (包含文件和表单数据)
        upload.setSizeMax(MAX_REQUEST_SIZE);
        // 中文处理
        upload.setHeaderEncoding("UTF-8");
        // 构造临时路径来存储上传的文件
        // 这个路径相对当前应用的目录
        String uploadPath = getServletContext().getRealPath("/") + File.separator + UPLOAD_DIRECTORY;
        // 如果目录不存在则创建
        File uploadDir = new File(uploadPath);
        if (!uploadDir.exists()) {
            uploadDir.mkdir();
        }
        try {
            // 解析请求的内容提取文件数据
            @SuppressWarnings("unchecked")
            List<FileItem> formItems = upload.parseRequest(req);
            if (formItems != null && formItems.size() > 0) {
                // 迭代表单数据
                for (FileItem item : formItems) {
                    // 处理不在表单中的字段
                    if (!item.isFormField()) {
                        String fileName = new File(item.getName()).getName();
                        filePath = uploadPath + File.separator + fileName;
                        File storeFile = new File(filePath);
                        // 在控制台输出文件的上传路径
                        System.out.println(filePath);
                        // 保存文件到硬盘
                        item.write(storeFile);
                    }
                }
            }
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
        }
        
        String nickName= req.getParameter("nickName");
        String name= req.getParameter("name");
        System.out.println(nickName + '\t' + name);
//        System.out.println(filePath);
//        user.setNickname(nickName);
//        user.setName(name);
//        user.setPhoto(filePath);
//        if (user != null){
//            userDao.updateByPrimaryKey(user);
//            req.getSession().setAttribute("lsgUfile","个人信息更新成功！");
//            req.getSession().setAttribute("lsgUPhoto",user.getPhoto());
//            resp.sendRedirect("profile");
//        }
    }


}

看下你前端代码