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mysql + Fluently NHibernate + WebAPI + Autofac

Feb 15, 2017 am 10:55 AM


MySQL、Fluently NHibernate、WebAPI、Autofac,对我来说每一个都是麻烦疙瘩,现在它们为了一个共同的项目而凑合到一起了。一路磕磕碰碰,现在貌似有了一点眉目。

作为一个步入老人痴呆帕金森阶段的老革命,我当然要马上将奋斗过程记录下来:

1、MySql + Fluently NHibernate

static ISessionFactory sessionFactory;public static ISession OpenSession(string connString, string[] assemblys)
{    if (sessionFactory == null)
    {
        sessionFactory = Fluently.Configure()
            .Database(FluentNHibernate.Cfg.Db.MySQLConfiguration.Standard.
                ConnectionString(connString))
            .Mappings(m =>
            {                foreach (var item in assemblys)
                {
                    m.FluentMappings.AddFromAssembly(Assembly.Load(item));
                }
            }).BuildSessionFactory();

    }    return sessionFactory.OpenSession();
}

OpenSession((connString: "server=192.168.0.211; user id=root; password=lt1234; database=pnavrds", assemblys: new string[] { "Pnavrds.Data" });
Copy after login
Copy after login

.NET和NHibernate并不天然支持mysql,所以要在项目添加对mysql.data.dll的引用。mysql.data.dll在mysql的安装目录里有。
比如在 C:\Program Files (x86)\MySQL\Connector.NET 6.9\Assemblies\v4.5

2、WebAPI
有关路由问题。
别看api与MVC很像,但是,MVC支持Area,而api并不。
但是开始时我并不知道。轻车熟路地加了个Area,一访问,直接404。
路由如下:

public override void RegisterArea(AreaRegistrationContext context) 
{
    context.MapRoute(        "Test_default",        "Test/{controller}/{id}",        new { id = UrlParameter.Optional }
    );
}
Copy after login
Copy after login

咋办呢?难道各种控制器济济一堂一锅粥?后来网上查了资料,添加了一个路由,改为:

public override void RegisterArea(AreaRegistrationContext context) 
{
    context.Routes.MapHttpRoute(        "Test_defaultAPI",        "api/Test/{controller}/{id}",        new { id = RouteParameter.Optional }
    );
    context.MapRoute(        "Test_default",        "Test/{controller}/{action}/{id}",        new { action = "Index", id = UrlParameter.Optional }
    );
}
Copy after login
Copy after login

注意,这样处理之后,同一个控制器,就有两个地址都可以访问。一个有区域,一个没有区域:

http://localhost/Pnavrds.API/api/Test/Dev3/10http://localhost/Pnavrds.API/api/Dev3/10
Copy after login
Copy after login

因为asp.net webapi并不支持区域,不管你这个控制器放在哪个文件夹、哪个命名空间下,它都顽强地解释到根目录下。我们上面做的努力,仅仅是多了一个含有区域名称的地址而已。

参考资料

3、Autofac
这个东东是个好东东。我现在都有点离不开它了。不然那么多实例需要构造,然后每个构造函数都N多参数,太麻烦。但是,因为了解不够,每次用它,好像都要费一些周折,并且很难调试。
这次也不例外。

1)提示System.Web.Http的版本不对。
引用的system.web.http.dll版本为5.2.3.0,但系统说跟5.2.0.0对应不上,编译时虽然可以通过,但有警告,建议在app.config里写些啥啥啥。我找遍了代码,都看不到哪里声明了5.2.0.0。

后来还是根据编译器的提示,将它给出的代码,加到web.config里,编译警告就没有了,运行就再无这个错误:

<runtime>    
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http.Formatting" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Iesi.Collections" culture="neutral" publicKeyToken="aa95f207798dfdb4" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Autofac" culture="neutral" publicKeyToken="17863af14b0044da" />
        <bindingRedirect oldVersion="0.0.0.0-3.5.0.0" newVersion="3.5.0.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Http" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
Copy after login
Copy after login

附上编译信息:

4>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(1819,5): warning MSB3247: 发现同一依赖程序集的不同版本间存在冲突。
在 Visual Studio 中,请双击此警告(或选择此警告并按 Enter)以修复冲突;否则,请将以下绑定重定向添加到应用程序配置文件中的“runtime”节点: 
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="System.Net.Http.Formatting" culture="neutral"
 publicKeyToken="31bf3856ad364e35" /><bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" /></dependentAssembly></assemblyBinding>
 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="Iesi.Collections" culture="neutral" 
 publicKeyToken="aa95f207798dfdb4" /><bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" /></dependentAssembly></assemblyBinding>
 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="Autofac" culture="neutral" publicKeyToken="17863af14b0044da"/>
 <bindingRedirect oldVersion="0.0.0.0-3.5.0.0" newVersion="3.5.0.0" /></dependentAssembly></assemblyBinding>
Copy after login

2)说控制器没有默认构造函数
这说明autofac没有正常运行,否则不会报这个错。构造实例正是autofac的工作。

后来改了autofac的builder内容。代码如下:

public class AutofacConfig
{    public static void BuildContainer()
    {        var builder = new ContainerBuilder();        //Infrastructure objects
        builder.RegisterApiControllers(typeof(WebApiApplication).Assembly);
        builder.RegisterAssemblyTypes(typeof(WebApiApplication).Assembly).AsImplementedInterfaces();

        builder.RegisterModule(new AutofacWebTypesModule());        //其他代码.....

        builder.RegisterModelBinderProvider();
        builder.RegisterFilterProvider();

        IContainer container = builder.Build();        //DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
        GlobalConfiguration.Configuration.DependencyResolver = (new AutofacWebApiDependencyResolver(container));
    }
}
Copy after login
Copy after login

MySQL、Fluently NHibernate、WebAPI、Autofac,对我来说每一个都是麻烦疙瘩,现在它们为了一个共同的项目而凑合到一起了。一路磕磕碰碰,现在貌似有了一点眉目。

作为一个步入老人痴呆帕金森阶段的老革命,我当然要马上将奋斗过程记录下来:

1、MySql + Fluently NHibernate

static ISessionFactory sessionFactory;public static ISession OpenSession(string connString, string[] assemblys)
{    if (sessionFactory == null)
    {
        sessionFactory = Fluently.Configure()
            .Database(FluentNHibernate.Cfg.Db.MySQLConfiguration.Standard.
                ConnectionString(connString))
            .Mappings(m =>
            {                foreach (var item in assemblys)
                {
                    m.FluentMappings.AddFromAssembly(Assembly.Load(item));
                }
            }).BuildSessionFactory();

    }    return sessionFactory.OpenSession();
}

OpenSession((connString: "server=192.168.0.211; user id=root; password=lt1234; database=pnavrds", assemblys: new string[] { "Pnavrds.Data" });
Copy after login
Copy after login

.NET和NHibernate并不天然支持mysql,所以要在项目添加对mysql.data.dll的引用。mysql.data.dll在mysql的安装目录里有。
比如在 C:\Program Files (x86)\MySQL\Connector.NET 6.9\Assemblies\v4.5

2、WebAPI
有关路由问题。
别看api与MVC很像,但是,MVC支持Area,而api并不。
但是开始时我并不知道。轻车熟路地加了个Area,一访问,直接404。
路由如下:

public override void RegisterArea(AreaRegistrationContext context) 
{
    context.MapRoute(        "Test_default",        "Test/{controller}/{id}",        new { id = UrlParameter.Optional }
    );
}
Copy after login
Copy after login

咋办呢?难道各种控制器济济一堂一锅粥?后来网上查了资料,添加了一个路由,改为:

public override void RegisterArea(AreaRegistrationContext context) 
{
    context.Routes.MapHttpRoute(        "Test_defaultAPI",        "api/Test/{controller}/{id}",        new { id = RouteParameter.Optional }
    );
    context.MapRoute(        "Test_default",        "Test/{controller}/{action}/{id}",        new { action = "Index", id = UrlParameter.Optional }
    );
}
Copy after login
Copy after login

注意,这样处理之后,同一个控制器,就有两个地址都可以访问。一个有区域,一个没有区域:

http://localhost/Pnavrds.API/api/Test/Dev3/10http://localhost/Pnavrds.API/api/Dev3/10
Copy after login
Copy after login

因为asp.net webapi并不支持区域,不管你这个控制器放在哪个文件夹、哪个命名空间下,它都顽强地解释到根目录下。我们上面做的努力,仅仅是多了一个含有区域名称的地址而已。

参考资料

3、Autofac
这个东东是个好东东。我现在都有点离不开它了。不然那么多实例需要构造,然后每个构造函数都N多参数,太麻烦。但是,因为了解不够,每次用它,好像都要费一些周折,并且很难调试。
这次也不例外。

1)提示System.Web.Http的版本不对。
引用的system.web.http.dll版本为5.2.3.0,但系统说跟5.2.0.0对应不上,编译时虽然可以通过,但有警告,建议在app.config里写些啥啥啥。我找遍了代码,都看不到哪里声明了5.2.0.0。

后来还是根据编译器的提示,将它给出的代码,加到web.config里,编译警告就没有了,运行就再无这个错误:

<runtime>    
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http.Formatting" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Iesi.Collections" culture="neutral" publicKeyToken="aa95f207798dfdb4" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Autofac" culture="neutral" publicKeyToken="17863af14b0044da" />
        <bindingRedirect oldVersion="0.0.0.0-3.5.0.0" newVersion="3.5.0.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Http" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
Copy after login
Copy after login

附上编译信息:

4>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(1819,5): warning MSB3247: 发现同一依赖程序集的不同版本间存在冲突。
在 Visual Studio 中,请双击此警告(或选择此警告并按 Enter)以修复冲突;否则,请将以下绑定重定向添加到应用程序配置文件中的“runtime”节点: 
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="System.Net.Http.Formatting" culture="neutral" 
publicKeyToken="31bf3856ad364e35" /><bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" /></dependentAssembly></assemblyBinding>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="Iesi.Collections" culture="neutral" 
publicKeyToken="aa95f207798dfdb4" /><bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" /></dependentAssembly></assemblyBinding>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="Autofac" culture="neutral" publicKeyToken="17863af14b0044da"/>
<bindingRedirect oldVersion="0.0.0.0-3.5.0.0" newVersion="3.5.0.0" /></dependentAssembly></assemblyBinding>
Copy after login

2)说控制器没有默认构造函数
这说明autofac没有正常运行,否则不会报这个错。构造实例正是autofac的工作。

后来改了autofac的builder内容。代码如下:

public class AutofacConfig
{    public static void BuildContainer()
    {        var builder = new ContainerBuilder();        //Infrastructure objects
        builder.RegisterApiControllers(typeof(WebApiApplication).Assembly);
        builder.RegisterAssemblyTypes(typeof(WebApiApplication).Assembly).AsImplementedInterfaces();

        builder.RegisterModule(new AutofacWebTypesModule());        //其他代码.....

        builder.RegisterModelBinderProvider();
        builder.RegisterFilterProvider();

        IContainer container = builder.Build();        //DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
        GlobalConfiguration.Configuration.DependencyResolver = (new AutofacWebApiDependencyResolver(container));
    }
}
Copy after login
Copy after login

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