笔试考试系统 ____学生信息修改

1.今日任务

学生信息修改

 控制器对应代码：

using Exam.UI.Filter;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Exam.BLL;
using Utility;
using Exam.Model;

namespace Exam.UI.Controllers
{
    [AdminFilter]
    public class StudentController : Controller
    {
        // GET: Student
        public ActionResult Index()
        {
            var name = Session[CommonFeild.SessionName] as Exam_User;

            return View(name);
        }
        public ActionResult Main()
        {
            return View();
        }
        public ActionResult MyInfo()
        {
           var currentuser= Session[CommonFeild.SessionName] as Exam_User;
            return View(currentuser);
        }
        [HttpPost]
        public ActionResult Edit(string uname, string Name, string phone, string id)
        {
            Exam_User u = new Exam_User { UserID = System.Convert.ToInt32(id), RealName = Name, UserName = uname, Phone = phone };
            try
            {
                StudentMannerService.Update(u);
            }
            catch (Exception ex)
            {
                return Json(new { msg = "修改失败" + ex, success = false });

            }
            return Json(new { msg = "修改成功", success = true });

        }

       
    }
}

Service层对应方法

using PagedList;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Exam.Model;
using Exam.DAL;

namespace Exam.BLL
{
    public class StudentMannerService
    {
        
        public static Exam_User FindStudentByID(int id)
        {
            using (ExamSysDBContext dBContext = new ExamSysDBContext())
            {

                var data = dBContext.Exam_User.Where(x => x.UserID == id).FirstOrDefault();
                return data;
            }
        }
    
        public static int Update(Exam_User u)
        {
            using (ExamSysDBContext dBContext = new ExamSysDBContext())
            {
                var data = dBContext.Exam_User.Where(x => x.UserID == u.UserID).FirstOrDefault();
                data.UserName = u.UserName;
                data.Phone = u.Phone;
                data.RealName = u.RealName;
                return dBContext.SaveChanges();
            }                
        }
    }
}

3.遇到问题

无

4.解决方案

无