问题描述
在我的ASP .NET API Web项目中,我正在使用ValidateModelActionHandler和AuditactionHandler。首先调用ValidateModelActionHandler,其次是AuditactionHandler。如果模型验证失败,然后执行流程停止,并且我必须保存一些日志信息,则第二个ActionHandler不调用。
public class Validatemodelattribute : ActionFilterattribute
{
public override void OnActionExecuting(System.Web.Http.Controllers.HttpActionContext actionContext)
{
var isValid = true;
// dont allow null values for models for non-get operations.
if (actionContext.Request.Method != HttpMethod.Get && actionContext.ActionArguments.Any())
{
var modelkv =
actionContext.ActionArguments.Where(p => !p.GetType().IsPrimitive && p.GetType() != typeof (string));
var keyvaluePairs = modelkv as keyvaluePair<string,object>[] ?? modelkv.ToArray();
if (keyvaluePairs.Count() == 1)
{
var modelObj = keyvaluePairs.First().Value;
if (modelObj == null)
isValid = false;
}
}
if (!isValid || !actionContext.ModelState.IsValid)
{
// if query string contains debug then show detailed validation message.
string messages = null;
var isDebug = actionContext.Request.RequestUri.ParseQueryString()["debug"];
if (!string.IsNullOrEmpty(isDebug))
{
messages = string.Join(" ",actionContext.ModelState.Values
.SelectMany(x => x.Errors)
.Select(x => x.ErrorMessage));
}
actionContext.Response = actionContext.Request.CreateBadRequestResponse(messages);
}
}
}
解决方法
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