我正在关注此 page 上的 ninject 过滤器属性设置。 .
对他们来说,他们有:
.WithConstructorArgumentFromControllerAttribute<LogAttribute>(
"logLevel", attribute => attribute.LogLevel);
第二个参数是
Func<LogAttribute, object> callback
.他们的实际参数列表设置如下:Log(LogLevel = Level.Debug)
但我的过滤器属性设置如下:
public class AuthAttribute : FilterAttribute { }
public class AuthFilter : IAuthorizationFilter
{
private readonly IUserService userService;
private string[] roles;
//Stuck on the constructor also. How do I accept params?
public AuthFilter(IUserService userService, params string[] roles)
{
this.userService = userService;
this.roles = roles;
}
public void OnAuthorization(AuthorizationContext filterContext)
{
throw new NotImplementedException();
}
}
不知何故,这是错误的。因为我希望我的过滤器看起来像:
[Auth("Admin", "Contrib")]
我的绑定(bind):
kernel.BindFilter<AuthFilter>(FilterScope.Controller, 0)
.WhenControllerHas<AuthAttribute>()
.WithConstructorArgumentFromControllerAttribute<AuthAttribute>("roles", /*Stuck here*/)
最佳答案
您需要将角色变成属性中的属性。
属性:
public class AuthAttribute : FilterAttribute
{
public string[] Roles { get; set; }
public AuthAttribute(params string[] roles)
{
this.Roles = roles;
}
}
筛选:
public class AuthFilter : IAuthorizationFilter
{
private readonly IUserService userService;
private readonly string[] roles;
public AuthFilter(IUserService userService, string[] roles)
{
this.userService = userService;
this.roles = roles;
}
public void OnAuthorization(AuthorizationContext filterContext)
{
//do stuff
}
}
Controller
[AuthAttribute("a", "b")]
public class YourController : Controller
{
}
捆绑:
kernel.BindFilter<AuthFilter>(FilterScope.Controller, 0)
.WhenControllerHas<AuthAttribute>()
.WithConstructorArgumentFromControllerAttribute<AuthAttribute>("roles", attribute => attribute.Roles);
关于asp.net-mvc - 为依赖注入(inject)设置过滤器属性以接受构造函数中的参数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6205187/