Question

我已经在互联网上搜索了一个few threads出现在stackoverlow中，关于在mvc中实现recaptcha遵循这个tutorial。但是，我发现一步一步的指令非常缺乏恕我直言。我已经下载了源文件。这是我的问题。

我在哪里将CaptchaValidatorAttribute.cs，AssemblyInfo.cs和GenerateCaptcha.cs文件放在我的MVC文件夹中？
一旦我将这些.cs文件放在正确的位置，我如何在ContactUsController和ContactUs.cshtml中引用它们？一步一步的指示没有提到这一点。

非常感谢任何帮助。

Answer 1

好的，我明白了。这个tutorial非常有用，因为我在上一篇文章中提到的那篇文章没有做好解释。以下是我的电话代码：

的ContactController：

[CaptchaValidator]
        [HttpPost]
        public ActionResult ContactForm(ContactModels model, bool captchaValid)
        {
            if (!captchaValid)
            {
                ModelState.AddModelError("captcha", "You did not type the verification word correctly. Please try again.");
            }
            else if(ModelState.IsValid)
            {
                MailMessage netMessage = new MailMessage();
                SmtpClient mailClient = new SmtpClient();
                try
                {
                    netMessage.From = new MailAddress("contact@myComp.com");
                    netMessage.To.Add(new MailAddress(model.email));

                    netMessage.IsBodyHtml = true;
                    netMessage.Priority = MailPriority.High;
                    netMessage.Subject = "Subject: " + model.subject;
                    netMessage.Body = getMailBody(model.fstName, model.lstName, model.subject, model.phone, model.email, model.address, model.apartment, model.city, model.state, model.zipcode, model.country, model.comments);
                    mailClient.Send(netMessage);
                }
                catch (Exception error)
                {
                    Response.Write("Error sending email: " + error.Message + "<br /> StackTrace: " + error.StackTrace);
                }
                finally
                {
                    netMessage.Dispose();
                    netMessage = null;
                    mailClient = null;
                }

                return RedirectToAction("Index", "Home");
            }
            return View();
        }

这是我的观点：

@using MvcReCaptcha.Helpers;

@{
    ViewBag.Title = "Contact";
    Layout = "~/Views/Shared/_FullPage.cshtml";
}

<h2>Contact Us</h2>
@using (Html.BeginForm())
{
    @Html.LabelFor(model => model.fstName)
    @Html.TextBoxFor(model => model.fstName)
    @Html.ValidationMessageFor(model => model.fstName)

    @Html.LabelFor(model => model.lstName)
    @Html.TextBoxFor(model => model.lstName)
    @Html.ValidationMessageFor(model => model.lstName)

    @Html.LabelFor(model => model.phone)
    @Html.TextBoxFor(model => model.phone)
    @Html.LabelFor(model => model.email)
    @Html.TextBoxFor(model => model.email)
    @Html.LabelFor(model => model.address)
    @Html.TextBoxFor(model => model.address)
    @Html.LabelFor(model => model.apartment)
    @Html.TextBoxFor(model => model.apartment)
    @Html.LabelFor(model => model.city)
    @Html.TextBoxFor(model => model.city)
    @Html.LabelFor(model => model.state)
    @Html.TextBoxFor(model => model.state)
    @Html.LabelFor(model => model.zipcode)
    @Html.TextBoxFor(model => model.zipcode)
    @Html.LabelFor(model => model.country)
    @Html.TextBoxFor(model => model.country)
    @Html.LabelFor(model => model.subject)
    @Html.TextBoxFor(model => model.subject)
    @Html.LabelFor(model => model.comments)
    @Html.TextAreaFor(model => model.comments)
    @Html.Raw(Html.GenerateCaptcha())
    @Html.ValidationMessage("captcha")
    <br />
    <button type="submit">Submit</button>
}

注意到@ html.ValidationMessage中的参数与ModelStae.AddModelError中的参数匹配。我希望这可以帮助那些可能遇到同样问题的人。

Answer 2

鉴于显示的逻辑，我将创建一个名为“Helpers”的新文件夹，因为看起来这些文件夹会扩展HtmlHelper，然后将文件放在那里。

将以下内容添加到您的web.config：

<appSettings>
<add key="ReCaptchaPrivateKey" value=" -- PRIVATE_KEY -- " />
<add key="ReCaptchaPublicKey" value=" -- PUBLIC KEY -- " />
</appSettings>

<namespaces>
    <add namespace="MvcReCaptcha.Helpers"/>
</namespaces>

在您希望生成ReCaptcha的视图上放置以下内容：

@Using MvcReCaptcha.Helpers
@Html.GenerateCaptcha()

然后在与视图相同的控制器中添加前面的行以添加以下处理程序：

[CaptchaValidator]
[AcceptVerbs( HttpVerbs.Post )]
public ActionResult CreateComment( Int32 id, bool captchaValid )
{
if (!captchaValid)
{
    ModelState.AddModelError("_FORM", "You did not type the verification word correctly. Please try again.");
}
else
{
    // If we got this far, something failed, redisplay form
    return View();
}
}

不要忘记您需要先注册才能获得公钥和私钥。 http://www.google.com/recaptcha/whyrecaptcha

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