详解.Net Core 权限验证与授权（AuthorizeFilter、ActionFilterAttribute）_实用技巧_

 public class AllowAnonymous : AuthorizeFilter, IAllowAnonymousFilter { } 

 public class LoginAuthorzation : AuthorizeFilter { } 

 /// 
 /// 请求验证，当前验证部分不要抛出异常，ExceptionFilter不会处理 /// 
 /// 请求内容信息 public override async Task OnAuthorizationAsync(AuthorizationFilterContext context) { if (IsHaveAllow(context.Filters)) { return; } //解析url // {/ Home / Index} var url = context.HttpContext.Request.Path.Value; if (string.IsNullOrWhiteSpace(url)) { return; } var list = url.Split("/"); if (list.Length<=0||url=="/") { return; } var controllerName = list[1].ToString().Trim(); var actionName = list[2].ToString().Trim(); //验证 var flag=PowerIsTrue.IsHavePower(controllerName, actionName); if (flag.Item1!=0) { context.Result = new RedirectResult("/Home/Index"); } } //判断是否不需要权限 public static bool IsHaveAllow(IList filers) { for (int i = 0; i < filers.Count; i++) { if (filers[i] is IAllowAnonymousFilter) { return true; } } return false; } 

 public static (int,string) IsHavePower(string controllerName,string actionName) { return (0,"通过"); } 

 services.AddMvc(options => { options.Filters.Add(); // 添加身份验证过滤器 } 

 public class ActionFilterAttributeLogin: ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { var isDefined = false; var controllerActionDescriptor = filterContext.ActionDescriptor as ControllerActionDescriptor; if (controllerActionDescriptor != null) { isDefined = controllerActionDescriptor.MethodInfo.GetCustomAttributes(inherit: true) .Any(a => a.GetType().Equals(typeof(NoPermissionRequiredAttribute))); } if (isDefined) return; if (string.IsNullOrWhiteSpace(filterContext.HttpContext.Request.Query["LoginInfo"].ToString())) { var item = new ContentResult(); item.Content = "没得权限"; filterContext.Result = new RedirectResult("/Account/Login"); } base.OnActionExecuting(filterContext); } public class NoPermissionRequiredAttribute : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { base.OnActionExecuting(filterContext); } } } 

 services.AddMvc(options => { options.Filters.Add(); // 添加身份验证过滤器 -- 菜单操作权限 }