[英]Get Absolute URL of an Action (not in view) - NullReferenceException
我已經搜索了很多這個問題,它們似乎都具有相同的答案,並且似乎與視圖而不是控制器有關。
我已經嘗試實現答案,但是在這部分上我得到了NullReferenceException
url.RequestContext.HttpContext.Request.Url.Scheme;
我已經引用了System.Web.Mvc;
但是我仍然無法調用Url.Action
。 相反,我必須創建UrlHelper
的新對象,然后調用Action
方法。 我不確定這是否是我的問題的原因。
我的代碼如下:
public static class EmailHelper
{
public static string AbsoluteAction(this UrlHelper url, string actionName, string controllerName, object routeValues = null)
{
// Throws NullReferenceException
string scheme = url.RequestContext.HttpContext.Request.Url.Scheme;
return url.Action(actionName, controllerName, routeValues, scheme);
}
public static async Task SendReset(string emailAddress)
{
MailDefinition md = new MailDefinition()
{
IsBodyHtml = true,
Subject = "Password Reset",
BodyFileName = "~/Templates/ResetConfirm.html",
};
UrlHelper helper = new UrlHelper();
string url = helper.AbsoluteAction("Login", "Account");
ListDictionary replacements = new ListDictionary();
replacements.Add("{{LoginUrl}}", url);
MailMessage msg = md.CreateMailMessage(emailAddress, replacements, new System.Web.UI.Control());
SmtpClient client = new SmtpClient();
await client.SendMailAsync(msg);
}
}
編輯
我正在從AccountController
的ResetPassword
發布操作中調用SendReset
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
// some code here...
var result = await UserManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
if (result.Succeeded)
{
// Email confirmation of password reset
await EmailHelper.SendReset(model.Email);
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
UrlHelper
屬性Url
也可以在Controllers中訪問,因此請將該實例提供給您的方法以訪問UrlHelper
:
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
// some code here...
await EmailHelper.SendReset(Url, model.Email);
//...
}
public static class EmailHelper
{
public static async Task SendReset(UrlHelper urlHelper, string emailAddress)
{
//...
string url = urlHelper.AbsoluteAction("Login", "Account");
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.