Question

所以我设置了一个带有一条记录的表的MySQL数据库。我的解决方案由三个项目组成（1个域模型库，测试库和我的Web项目）。在我的MVC项目中，我已经使用所有必需的Dll和

实现了NHibernate

在Web项目根目录中：

nhibernate-configuration.xsd
nhibernate-mapping.xsd
nhibernate.config and 
<classname>.hbm.xml file - with the class it is mapping

在我的Global.asax.cs文件中，我有我的事件处理程序来绑定当前会话：公共类MvcApplication：System.Web.HttpApplication {

public MvcApplication()
{
  BeginRequest += (MvcApplication_BeginRequest);
  EndRequest += (MvcApplication_EndRequest);
}

void MvcApplication_BeginRequest(object sender, EventArgs e)
{
  CurrentSessionContext.Bind(BootStrapper.SessionFactory.OpenSession());
}

void MvcApplication_EndRequest(object sender, EventArgs e)
{
  CurrentSessionContext.Unbind(BootStrapper.SessionFactory).Dispose();
}

然后我有我的BootStrapper类，它返回当前会话： public static readonly ISessionFactory SessionFactory = CreateSessionFactory（）;

  private static ISessionFactory CreateSessionFactory()
  {
    var cfg = new Configuration().Configure(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "nhibernate.config"));
    cfg.SetProperty(NHibernate.Cfg.Environment.ConnectionStringName, System.Environment.MachineName);
    return cfg.BuildSessionFactory();
  }

  public static ISession GetSession()
  {
    return SessionFactory.GetCurrentSession();
  }

我的控制器正由我的Ninject IoC传递一个对象 ProductController.cs 公共类ProductsController：控制器 { private readonly IProductsRepository productsRepository;

    public ProductsController(IProductsRepository productsRepository)
    {
      this.productsRepository = productsRepository;
    }

    public ViewResult List()
    {
        return View(productsRepository.Products.ToList());
    }

}

NinjectControllerFactory.cs public class NinjectControllerFactory：DefaultControllerFactory { //提供对象实例 private IKernel kernel = new StandardKernel（new DaisyblossomsServices（））;

//MVC calls this to get the controller for each requests
protected override IController GetControllerInstance(System.Web.Routing.RequestContext requestContext, Type controllerType)
{
  if (controllerType == null)
    return null;
  return (Controller)kernel.Get(controllerType);
}

}

您将销售哪些电话我的服务类DaisyblossomsServices：公共类DaisyblossomsServices：NinjectModule {

public override void Load()
{
    Bind<IProductsRepository>().To<ProductsRepository>();
}

}

你可以看到IProductsRepository绑定到我的ProductsRepository类：

public class ProductsRepository : IProductsRepository

{ 公共IQueryable产品 { get {var session = BootStrapper.GetSession（）;

    return session.CreateCriteria(typeof(Product)).List<Product>().AsQueryable();

    }
}

}

我的ProductsController交给了IProductsRepository对象

 public interface IProductsRepository

{ IQueryable Products {get; } }

作为附加信息My Product.hbm.xml文件，它映射我的Product.cs类

<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
                   assembly="Daisyblossoms.Domain"
                   namespace="Daisyblossoms">
      <class name="Product"
         table="product">
    <id name="ProductID">
      <generator class="assigned" />
    </id>
    <property name="Name" column="Name" />
    <property name="Price" column="Price" />
  </class>
</hibernate-mapping>

我的nhibernate.config：

<?xml version="1.0"?>
<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
  <session-factory name="Daisyblossoms.Domain">
    <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
    <property name="connection.driver_class">NHibernate.Driver.MySqlDataDriver</property>
    <property name="generate_statistics">true</property>
    <property name="current_session_context_class">web</property>
    <property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory,     NHibernate.ByteCode.Castle</property>
    <property name="dialect">NHibernate.Dialect.MySQL5Dialect</property>
    <mapping assembly="Daisyblossoms.WebUI"/>
  </session-factory>
</hibernate-configuration>

我的connectionsStrings是Web.config的一部分：

<connectionStrings>
<add name="daisyblossoms" connectionString="Server=localhost;Port=3306;Database=dbName;Uid=user;Pwd=somePSWD;pooling=false;" 
 providerName="MySql.Data.MySqlClient"/>

有什么想法可能是我的问题？

Answer 1

验证hibernate.cfg.xml的输出设置为“Update if newer”，并确保* .hbm.xml文件标记为Embedded Resources。这是两个最常见的错误。听起来你也试图让很多活动部件同时工作。您可能希望简化操作以获得使用NHibernate连接到MySQL的控制台应用程序。像这样：

internal class Program {
    private static void Main() {
        var cfg = new Configuration();
        cfg.Configure();  // Uses hibernate.cfg.xml by default.
        // cfg.Configure("nhibernate.config");  // Or use this overload if you prefer your own name.
        var sessionFactory = cfg.BuildSessionFactory();
        using(var session = sessionFactory.OpenSession())
        using(var tx = session.BeginTransaction()) {
            var query = session.CreateCriteria<Product>().List();
            query.ForEach(x => Console.WriteLine(x.Name));
            tx.Commit();
        }
        Console.WriteLine("Press <ENTER> to exit...");
        Console.ReadLine();
    }
}

这将允许您验证您的映射和配置文件是否正确，而无需同时担心MVC，Ninject等。

看起来无法使用NHibernate从MySQL数据库中获取数据

1 个答案: