Mvc 异常处理 ajax的 和 不是ajax的!
using ImageUpload.Auth; using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Web; using System.Web.Mvc; namespace Web { [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = true, Inherited = true)] public class HandleAjaxErrorAttribute : FilterAttribute, IExceptionFilter { public void OnException(ExceptionContext filterContext) { var errorMsg = filterContext.Exception.Message; if (filterContext.HttpContext.Request.IsAjaxRequest()) { filterContext.Result = AjaxError(filterContext.Exception.Message, filterContext); filterContext.ExceptionHandled = true; } else { Er.G(errorMsg);//把错误存储起来 filterContext.Result = new RedirectResult("/Home/ErrorMsg/"); filterContext.ExceptionHandled = true; } } protected JsonResult AjaxError(string message, ExceptionContext filterContext) { //如果消息是null或空,则充满了通用的消息 if (String.IsNullOrEmpty(message)) message = "发生了一些错误在处理您的请求。请刷新页面再试一次."; //响应状态代码设置为500 filterContext.HttpContext.Response.StatusCode = (int)HttpStatusCode.InternalServerError; //需要 IIS7.0 filterContext.HttpContext.Response.TrySkipIisCustomErrors = true; return new JsonResult { //可以扩展更多的属性 Data = new AjaxExceptionModel() { ErrorMessage = message }, ContentEncoding = System.Text.Encoding.UTF8, JsonRequestBehavior = JsonRequestBehavior.DenyGet }; } } public class AjaxExceptionModel { public string ErrorMessage { get; set; } } }
Er 类用来存储错误信息 然后前台调用
public static class Er { public static string Msg { get; set; } /// <summary> /// 将错误信息存起来 /// </summary> /// <param name="s"></param> /// <returns></returns> public static string G(string s) { Msg = s; return Msg; } /// <summary> /// 读取错误信息 /// </summary> /// <returns></returns> public static string P() { return Msg; } }
创建一个ErrorMsg控制器 和 视图
public ActionResult ErrorMsg() { string ss = Er.P(); ViewBag.msg = Er.P(); return View(); }
视图
@{ ViewBag.Title = ""; Layout = "~/Views/Shared/_Layout.cshtml"; } <div id="div" style="display:none"> <h2>@ViewBag.msg </h2> <h3><a href="/Home/Index">返回首页</a></h3> <p>给您造成影响,再次向您表示道歉!</p> </div> @section scripts { <script> @if (ViewBag.msg!=null) { <text> swal( { title: "错误?", text: "@ViewBag.msg!", type: "error", showCancelButton: true, confirmButtonColor: "#DD6B55", confirmButtonText: "跳到首页", cancelButtonText: "不", closeOnConfirm: false, closeOnCancel: false, allowOutsideClick:true }, function (isConfirm) { if (isConfirm) { window.location.href = "/Home/Index"; swal("请等待!", "正在跳转。。。", "success"); } else { swal( { title: "取消", text: "您取消了跳转.", type: "warning", confirmButtonText:"确定", timer: 500 }); $("#div").show(2000); } }); </text> } </script> }
视图用到了sweetalert 弹窗插件
下面是ajax的全局错误处理
创建一个 MyJs 的js文件
$(document).ajaxError(function (event, xhr, options, exc) { if (xhr.responseText != "") { var jsonValue = jQuery.parseJSON(xhr.responseText); console.log(jsonValue.ErrorMessage); swal( { title: "错误", text: jsonValue.ErrorMessage, type: "warning", confirmButtonText: "确定", }); } })