我想在我的项目中登录密码验证。当用户点击登录按钮时,编译器转到此方法
public ActionResult VerifyPassword(User user)
{
var givenPassword =user.Password;
var givenUserName=user.UserName;
//now i need compare password
var myUser=db.User.Find(somevalue)//find user from database,
But how can i do this????Because somevalue needs to be a Primary Key
}
如果我做错了什么。请指出我正确的方向 我在网上搜索了很多。但是没有找到使用实体框架完成此任务的教程。
答案 0 :(得分:9)
实际上,您不需要主键来匹配数据库中的用户。
您可以使用他们的用户名(应该是唯一的)在数据库中找到他们的记录。
尝试这样的事情:
public ActionResult VerifyPassword(User user)
{
//The ".FirstOrDefault()" method will return either the first matched
//result or null
var myUser = db.Users
.FirstOrDefault(u => u.Username == user.Username
&& u.Password == user.Password);
if(myUser != null) //User was found
{
//Proceed with your login process...
}
else //User was not found
{
//Do something to let them know that their credentials were not valid
}
}
另外考虑对模型验证进行一些研究,调查ModelState.IsValid
是一个很好的开始。
答案 1 :(得分:0)
应该像这样修改......
public ActionResult VerifyPassword(User user)
{
//The ".FirstOrDefault()" method will return either the first matched
//result or null
User myUser = dbContext.Users.FirstOrDefault
(u => u.Username.Equals(user.Username) && u.Password.Equals(user.Password));
if (myUser != null)
{
//User was found
//Proceed with your login process...
}
else //User was not found
{
//Do something to let them know that their credentials were not valid
}
}
答案 2 :(得分:0)
public ActionResult Login(StudentLogin sl)
{
if (sl.Email != null)
{
if (ModelState.IsValid) // this is check validity
{
StudentEntities1 se = new StudentEntities1();
var v = se.StudentLogins.Where(a => a.Email.Equals(sl.Email) && a.Password.Equals(sl.Password)).FirstOrDefault();
if (v != null)
{
Session["LogedUserID"] = v.Id.ToString();
//Session["LogedUserFullname"] = v.FullName.ToString();
return RedirectToAction("Success", "Student");
}
}
return View(sl);
}
else
{
return View();
}
}