模棱两可的ActionException:匹配多个动作.以下操作与路由数据匹配,并且满足了所有约束:



我知道对此还有更多问题,但它们似乎对我不起作用。

我遵循以下教程:https://www.youtube.com/watch?v=hlzexxx2gbns。

我想在MVC ASP.NET中发出电子邮件发送表格。除最后一步外,一切似乎都起作用。我不得不更改RouteConfig,但我没有RouteConfig。

我认为我需要对此进行更改以使其正常工作,但我不知道在哪里可以更改此问题。有人知道如何解决这个问题吗?

如果在另一个问题上有一个很好的解决方案,请告诉我。

这是我用于视图的DE代码:

@model smoothboard.Models.gmail
@{
ViewData["Title"] = "Index";
}
<h2>Index</h2>
<h4>Email</h4>
<hr />
<div>
    @using (Html.BeginForm("Index", "EmailSetup", FormMethod.Post, new { enctype = "multipart/form-data" }))
    {
    <table>
        <tr>
            <td>
                Naar:
            </td>
            <td>
                @Html.TextBoxFor(gmail=>gmail.To)
            </td>
        </tr>
        <tr>
            <td>
                <input type="submit" value="Verzend">
            </td>
        </tr>
    </table>
    }
</div>
<div>
    <a asp-action="Index">Back to List</a>
</div>

这是我用来发送邮件的代码:

public class EmailSetupController : Controller
{
    public IActionResult Index()
    {
        return View();
    }
    string from = new string("hans31833@gmail.com");
    string subject = new string("Geregistreerd");
    string body = new string("Je hebt je ingeschreven voor de nieuwsbrief!");
    public IActionResult Index(smoothboard.Models.gmail gmail, string from)
    {
        MailMessage mm = new MailMessage(from, gmail.To);
        mm.Subject = subject;
        mm.Body = body;
        mm.IsBodyHtml = false;
        SmtpClient smtp = new SmtpClient();
        smtp.Host = "smtp.gmail.com";
        smtp.Port = 587;
        smtp.EnableSsl = true;
        NetworkCredential nc = new NetworkCredential("hans31833@gmail.com", "hans1234hans");
        smtp.UseDefaultCredentials = true;
        smtp.Credentials = nc;
        smtp.Send(mm);
        ViewBag.MailMessage = "Mail is verzonden";
        return View();
    }
}

这是我用于模型的方法:

namespace smoothboard.Models
{
public class gmail
{
    public string To { get; set; }
}
}

异常消息提到的问题很简单:您有2个具有相同名称和相同HTTP方法的操作方法(默认情况下,HTTP方法是GET,它隐含地使用[HttpGet]):

):
// first action with GET method
public IActionResult Index() { ... }
// ambiguous matching here because this also uses GET method
public IActionResult Index(smoothboard.Models.gmail gmail, string from) { ... }

由于您有使用FormMethod.PostBeginForm助手:

@using (Html.BeginForm("Index", "EmailSetup", FormMethod.Post, new { enctype = "multipart/form-data" }))

然后,您必须使用[HttpPost]属性来装饰第二个Index操作,以区分其HTTP方法:

[HttpPost]
public IActionResult Index(smoothboard.Models.gmail gmail, string from)
{
    MailMessage mm = new MailMessage(from, gmail.To);
    mm.Subject = subject;
    mm.Body = body;
    mm.IsBodyHtml = false;
    SmtpClient smtp = new SmtpClient();
    smtp.Host = "smtp.gmail.com";
    smtp.Port = 587;
    smtp.EnableSsl = true;
    NetworkCredential nc = new NetworkCredential("hans31833@gmail.com", "hans1234hans");
    smtp.UseDefaultCredentials = true;
    smtp.Credentials = nc;
    smtp.Send(mm);
    ViewBag.MailMessage = "Mail is verzonden";
    return View();
}

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