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,因此阅读不是问题,只是写入它似乎是。
{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;
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而且我在这里磕磕绊绊地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,因为数据库可以使用IdentityDBContext但不是通过UserManager查询,在我的理解中使用IdentityDBContext连接。
答案 0 :(得分:6)
请勿使用MySql.Data.EntityFrameworkCore-7.0.7-m61
提供程序并使用其他内容。 Oracle设法让每个预发布版本都让自己难堪。
有了这个版本,他们设法让包裹变得如此困难,以至于它无法使用,因为该提供商似乎在每次查询后关闭它的连接。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
更好的是,使用PostgreSQL或SqlServer代替。