我正在尝试从ActionFilter的OnActionExecuted方法中删除HttpResponseHeaders中的特定Set-Cookie标头.
我遇到的问题很少：
>我看不到枚举头的方式.这个系列总是如此
即使我在调试器中看到标题,也是空的.
>因为我做不到
枚举,我无法删除特定的标题.我只能删除所有
标题具有相同的键,但Set-Cookie可以有多个
条目.
目前我正在删除所有cookie,但这不是我想要的.
public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
{
HttpResponseHeaders headers = actionExecutedContext.Response.Headers;
IEnumerable<string> values;
if (headers.TryGetValues("Set-Cookie",out values))
{
actionExecutedContext.Response.Headers.Remove("Set-Cookie");
}
base.OnActionExecuted(actionExecutedContext);
}
解决方法
从
link：
You cannot directly delete a cookie on a user’s computer. However,you can direct the user’s browser to delete the cookie by setting the cookie’s expiration date to a past date. The next time a user makes a request to a page within the domain or path that set the cookie,the browser will determine that the cookie has expired and remove it.
那么,如何在动作过滤器级别删除/删除ASP.NET Web Api中的cookie,只需尝试将cookie的过期日期设置为过去的日期：
public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
{
var response = actionExecutedContext.Response;
var request = actionExecutedContext.Request;
var currentCookie = request.Headers.GetCookies("yourCookieName").FirstOrDefault();
if (currentCookie != null)
{
var cookie = new CookieHeaderValue("yourCookieName","")
{
Expires = DateTimeOffset.Now.AddDays(-1),Domain = currentCookie.Domain,Path = currentCookie.Path
};
response.Headers.AddCookies(new[] { cookie });
}
base.OnActionExecuted(actionExecutedContext);
}
