添加项目文件。

HT.Cloud.Code/Attribute/HandlerLockAttribute.cs

@@ -0,0 +1,56 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace HT.Cloud.Code
+{
+	/// <summary>
+	/// 防重复锁，MVC使用
+	/// </summary>
+	public class HandlerLockAttribute : ActionFilterAttribute
+	{
+		public HandlerLockAttribute()
+		{
+		}
+
+		public override void OnActionExecuting(ActionExecutingContext filterContext)
+		{
+			if (OperatorProvider.Provider.GetCurrent() == null)
+			{
+				WebHelper.WriteCookie("WaterCloud_login_error", "overdue");
+				//filterContext.HttpContext.Response.WriteAsync("<script>top.location.href ='" + filterContext.HttpContext.Request.PathBase + "/Home/Error?msg=408" + "';if(document.all) window.event.returnValue = false;</script>");
+				OperatorProvider.Provider.EmptyCurrent("pc_").GetAwaiter().GetResult();
+				filterContext.Result = new RedirectResult(filterContext.HttpContext.Request.PathBase + "/Home/Error?msg=408");
+				return;
+			}
+			else
+			{
+				string token = filterContext.HttpContext.Request.Cookies["pc_" + GlobalContext.SystemConfig.TokenName];
+				string cacheToken = CacheHelper.GetAsync<string>("pc_" + GlobalContext.SystemConfig.TokenName + "_" + OperatorProvider.Provider.GetCurrent().UserId + "_" + OperatorProvider.Provider.GetCurrent().LoginTime).GetAwaiter().GetResult();
+				if (string.IsNullOrWhiteSpace(token))
+				{
+					filterContext.Result = new JsonResult(new AlwaysResult { state = ResultType.error.ToString(), message = "token不能空" });
+					return;
+				}
+				if (string.IsNullOrWhiteSpace(cacheToken))
+				{
+					filterContext.Result = new JsonResult(new AlwaysResult { state = ResultType.error.ToString(), message = "token不能空" });
+					return;
+				}
+				if (token != cacheToken)
+				{
+					filterContext.Result = new JsonResult(new AlwaysResult { state = ResultType.error.ToString(), message = "请求异常" });
+					return;
+				}
+				//固定加锁5秒
+				bool result = CacheHelper.SetNx(token, token, 5);
+				if (!result)
+				{
+					filterContext.Result = new JsonResult(new AlwaysResult { state = ResultType.error.ToString(), message = "请求太频繁，请稍后" });
+					return;
+				}
+			}
+			//随机值
+			base.OnActionExecuting(filterContext);
+		}
+	}
+}