我正在尝试将 ninject 与 db4o 一起使用,但我遇到了问题。这是来自 Global.aspx 的相关代码
static IObjectServer _server;
protected override void OnApplicationStarted()
{
AutoMapperConfiguration.Configure();
RegisterRoutes(RouteTable.Routes);
RegisterAllControllersIn(Assembly.GetExecutingAssembly());
if (_server == null)
{
// opening a server for a client/server session
IServerConfiguration serverConfiguration = Db4oClientServer.NewServerConfiguration();
serverConfiguration.File.Storage = new MemoryStorage();
_server = Db4oClientServer.OpenServer(serverConfiguration, "myServerDb.db4o", 0);
}
}
public static IObjectContainer OpenClient()
{
return _server.OpenClient();
}
public MvcApplication()
{
this.EndRequest += MvcApplication_EndRequest;
}
private void MvcApplication_EndRequest(object sender, System.EventArgs e)
{
if (Context.Items.Contains(ServiceModule.SESSION_KEY))
{
IObjectContainer Session = (IObjectContainer)Context.Items[ServiceModule.SESSION_KEY];
Session.Close();
Session.Dispose();
Context.Items[ServiceModule.SESSION_KEY] = null;
}
}
protected override IKernel CreateKernel()
{
return new StandardKernel(new ServiceModule());
}
public override void OnApplicationEnded()
{
_server.Close();
}
这是 ServiceModule 中的代码
internal const string SESSION_KEY = "Db4o.IObjectServer";
public override void Load()
{
Bind<IObjectContainer>().ToMethod(x => GetRequestObjectContainer(x)).InRequestScope();
Bind<ISession>().To<Db4oSession>();
}
private IObjectContainer GetRequestObjectContainer(IContext Ctx)
{
IDictionary Dict = HttpContext.Current.Items;
IObjectContainer container;
if (!Dict.Contains(SESSION_KEY))
{
container = MvcApplication.OpenClient();
Dict.Add(SESSION_KEY, container);
}
else
{
container = (IObjectContainer)Dict[SESSION_KEY];
}
return container;
}
然后我尝试将它注入到我的会话中:
public Db4oSession(IObjectContainer client)
{
db = client;
}
然而,在第一次调用之后,客户端总是关闭 - 因为它应该是因为 MvcApplication_EndRequest 中的代码。问题是 GetRequestObjectContainer 中的代码只被调用一次。我究竟做错了什么?
另外,MvcApplication_EndRequest 总是被调用 3 次,这正常吗?
谢谢!