添加项目文件。

WaterCloud.Code/Attribute/HandlerAjaxOnlyAttribute.cs

@@ -0,0 +1,34 @@
+using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.ActionConstraints;
+using Microsoft.AspNetCore.Routing;
+using System;
+
+namespace WaterCloud.Code
+{
+	/// <summary>
+	/// ajax验证
+	/// </summary>
+	[AttributeUsage(AttributeTargets.Method)]
+	public class HandlerAjaxOnlyAttribute : ActionMethodSelectorAttribute
+	{
+		public bool Ignore { get; set; }
+
+		public HandlerAjaxOnlyAttribute(bool ignore = false)
+		{
+			Ignore = ignore;
+		}
+
+		public override bool IsValidForRequest(RouteContext routeContext, ActionDescriptor action)
+		{
+			if (Ignore)
+				return true;
+			bool result = false;
+			var xreq = routeContext.HttpContext.Request.Headers.ContainsKey("x-requested-with");
+			if (xreq)
+			{
+				result = routeContext.HttpContext.Request.Headers.ContainsKey("x-requested-with");
+			}
+			return result;
+		}
+	}
+}