尝试使用UserManager CreateAsync方法创建新用户时出现以下错误 . 我使用的是未经修改的IdentityUser和IdentityRole . 我有一些DBSets填充了数据库中的数据,所以阅读不是问题,只是写它似乎 .
{System.InvalidOperationException: Connection must be valid and open to commit transaction at MySql.Data.MySqlClient.MySqlTransaction.Commit()
at Microsoft.EntityFrameworkCore.Storage.RelationalTransaction.Commit()
at Microsoft.EntityFrameworkCore.Update.Internal.BatchExecutor.<ExecuteAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.<SaveChangesAsync>d__54.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.<SaveChangesAsync>d__52.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.EntityFrameworkCore.DbContext.<SaveChangesAsync>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Identity.EntityFrameworkCore.UserStore`9.<CreateAsync>d__36.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Identity.UserManager`1.<CreateAsync>d__68.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Identity.UserManager`1.<CreateAsync>d__73.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Controllers.Auth.AuthController.<Register>d__9.MoveNext() in AuthController.cs:line 102}
我正在使用;
-
MySQL实体框架核心7.0.7-m61
-
Visual Studio 2017
-
ASP.NET核心MVC 1.1.0
-
身份1.1
错误中提到的第102行是var result = await userManager.CreateAsync(newUser,model.Password);
[HttpPost]
public async Task<ActionResult>Register(RegisterViewModel model)
{
try
{
if (ModelState.IsValid)
{
var newUser = new IdentityUser
{
Email = model.Email,
UserName = model.Username
};
var result = await _userManager.CreateAsync(newUser, model.Password);
if (result.Succeeded)
{
await _signInManager.SignInAsync(newUser, false);
_logger.LogInformation($"New user account created: {model.Username}");
return RedirectToAction("Index", "App");
}
_logger.LogError($"Registration failed for {model.Username}: ", result.Errors);
return View(model);
}
return View(model);
}
catch (Exception ex)
{
_logger.LogError("Database Failure: ", ex);
return View(model);
}
}
我正在学习asp.net,我在这里磕磕绊绊,我希望这是一个明显的错误,因为它似乎是一个基本的连接问题,但它没有意义,因为可以使用IdentityDBContext查询数据库,但不能通过UserManager查询在我的理解中使用IdentityDBContext连接 .
1 回答
不要使用
MySql.Data.EntityFrameworkCore-7.0.7-m61
提供程序并使用其他内容 . Oracle设法在每个预发布版本中使自己难堪 .在这个版本中,他们设法让包裹变得如此困难,以至于每次查询后它都会连接起来 . 请改用
Pomelo.EntityFrameworkCore.MySql
1.1.0(或等待Oracles提供商的下一个版本) . Oracle在使用当前提供商版本支持ADO.NET/EF方面从未发挥过强大的作用更好的是,使用PostgreSQL或SqlServer代替 .