c# – 带有asp.net的MySql有错误
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帮我看一下mysql数据库.有连接,但还有另一个错误.我无法连接到数据库(本地).错误:
Server Error in Application '/'.
Method "MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken(System.Data.Common.DbConnection)" could not access the method "MySql.Data.MySqlClient.MySqlConnection.get_Settings()".
Description: An unhandled exception occurred during the execution of the current web request. Examine the stack trace for more information about this error and the code snippet that caused it.
Exclusion Information: System.MethodAccessException: Method "MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken(System.Data.Common.DbConnection)" could not access the method "MySql.Data.MySqlClient.MySqlConnection.get_Settings()".
跟踪堆栈:
[MethodAccessException: Методу "MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken(System.Data.Common.DbConnection)" could not access the method"MySql.Data.MySqlClient.MySqlConnection.get_Settings()".]
MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken(DbConnection connection) +44
System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection) +87
[ProviderIncompatibleException: The provider did not return a ProviderManifestToken string.]
System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection) +271
MySql.Data.Entity.MySqlManifestTokenResolver.ResolveManifestToken(DbConnection connection) +32
System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest& providerManifest) +56
System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection) +43
System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +62
System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input) +123
System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +627
System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +18
System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +53
System.Data.Entity.Internal.Linq.InternalSet`1.GetEnumerator() +15
System.Data.Entity.Infrastructure.DbQuery`1.System.Collections.Generic.IEnumerable<TResult>.GetEnumerator() +53
System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +375
System.Linq.Enumerable.ToList(IEnumerable`1 source) +58
WebApplication2.Controllers.HomeController.Index() in C:\Users\shebanits.vitaliy\source\repos\WebApplication2\WebApplication2\Controllers\HomeController.cs:24
lambda_method(Closure , ControllerBase , Object[] ) +62
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +157
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.Async.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +22
System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0() +50
System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +228
System.Web.Mvc.Async.<>c__DisplayClass7_0.<BeginInvokeActionMethodWithFilters>b__1(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__3() +35
System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult) +100
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +11
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +45
System.Web.Mvc.<>c.<BeginExecute>b__151_2(IAsyncResult asyncResult, Controller controller) +13
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +22
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +28
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9748665
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +48
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +159
我知道我无法连接到数据库,但我不明白错误是什么,请告诉我.这是代码……
web.config中
<entityFramework codeConfigurationType="MySql.Data.Entity.MySqlEFConfiguration, MySql.Data.Entity.EF6">
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
</providers>
</entityFramework>
<connectionStrings>
<add name="conn" providerName="MySql.Data.MySqlClient"
connectionString="server=127.0.0.1;uid=root;Password=Accessdeniedroma2005;database=musicportal;CharSet=utf8;Persist Security Info=False;Integrated Security=true" />
</connectionStrings>
带有上下文的模型:
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Web;
namespace WebApplication2.Models
{
public class User
{
public int id { get; set; }
public string login { get; set; }
public string password { get; set; }
public string username { get; set; }
}
[DbConfigurationType(typeof(MySql.Data.Entity.MySqlEFConfiguration))]
public class UsersContext : DbContext
{
public UsersContext() : base("conn")
{ }
public DbSet<User> Users { get; set; }
}
}
和部分控制器::
private UsersContext dbUsers = new UsersContext();
public ActionResult Index()
{
//string connectionString = @"Data Source=localhost; Database = musicportal; User ID = root; Password = Accessdeniedroma2005;SslMode=none";
//using (MySqlConnection cn = new MySqlConnection(connectionString))
//{
// cn.Open();
// Response.Write("Подключился!");
//}
return View(dbUsers.Users.ToList());
}
解决方法:
我怀疑你正在使用MySql.Data v8.0.11和MySql.Data.Entity v6.10.7.它们具有不同的主要版本并且不兼容.
您需要卸载MySql.Data.Entity并安装MySql.Data.EntityFramework; Oracle changed the name作为升级到v8.x的一部分.
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