Question

我有使用RazorEngine生成电子邮件的MVC5应用程序。每封电子邮件都在cshtml模板中。模板将数据传递给他们，因此即使我这样做，缓存它们并不会真正有用。还有什么我可以做的，以减少渲染所需的时间吗？在Azure服务器上花几秒钟来渲染。

@{
    ViewBag.Title = "_EmailResetPassword";
}

@{ var PasswordToken = Model.token; }
@{ var URLpath = Model.URLpath; }
@{ string link = string.Format("http://{0}/Account/ResetPassword/?tokenid={1}", URLpath, PasswordToken); }

<html>

<head>
<title></title>
<style type="text/css">
.auto-style1 {
    text-align: center;
}
.auto-style2 {
    background: white;
    text-align: left;
    font-size: 11.0pt;
    font-family: Helvetica, sans-serif;
    color: #4D4D4D;
}
</style>
</head>

    <body>
        <div class="auto-style1">

        <h3 class="auto-style2">Dear @Model.FirstName,</h3>

        <h3 class="auto-style2">We have reset your password at Eph Apparel for the username: @Model.UserName</h3>

        <h3 class="auto-style2">Please click on the following link to create a new password:</h3>

        <h3 style='text-align:center;background:white'><span lang=EN-CA
        style='font-size:11.0pt;font-family:"Helvetica","sans-serif"'>
        <a href="@link">Reset Password</a></span></h3>

        <h3 style='text-align:center;background:white'><span lang=EN-CA
        style='font-size:11.0pt;font-family:"Segoe UI","sans-serif";color:#4D4D4D'>LIKE US ON </span>
        <span> <a href="https://www.facebook.com/ephapparel" target="_blank"><img alt="" width=25 height=22
        src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/fb_icon.png" ></a></span>
        &nbsp;<span lang=EN-CA style='font-size:11.0pt;font-family:"Segoe UI","sans-serif";
        color:#4D4D4D'>&nbsp;FOLLOW US ON </span><span lang=EN-CA></span>
        <span><a href="https://www.twitter.com/ephApparel" target="_blank"><img alt="" width=25 height=23
        src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/twitter_icon.png"></a></span></h3>
        <br>
        <img alt="" src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/eph_logo.png">
        </div>

    </body>

</html>

代码背后：

private string ResetPassword(Customer oCustomer, string oToken)
{
    string oURLpath = GetConfigSettingById(3);

    string template = System.IO.File.ReadAllText(HostingEnvironment.MapPath("/bin/EmailTemplates/_EmailResetPassword.cshtml"));
    string message = Razor.Parse(template, new { FirstName = oCustomer.FirstName, UserName = oCustomer.Email, token = oToken, URLpath = oURLpath }, "Reset");
    return message;
}

Answer 1

private string ResetPassword(Customer oCustomer, string oToken)
{
    string oURLpath = GetConfigSettingById(3);    
    string template = System.IO.File.ReadAllText(HostingEnvironment.MapPath("/bin/EmailTemplates/_EmailResetPassword.cshtml"));
    string message = Razor.Parse(template, new { FirstName = oCustomer.FirstName, UserName = oCustomer.Email, token = oToken, URLpath = oURLpath });
    return message;
}

我要走出困境并说这是你的减速发生的地方......这些类型的操作在网站上非常昂贵，特别是如果它在别处运行（I.E. Azure）。此操作正在执行的操作是逐字加载整个文件，然后在每次重置密码时填充它。

您可以使用电子邮件进行3种选择。

现在保留它（它可以工作，但很慢）
采用模板/缓存方法（我将在几秒钟内完成，并且会在启动时导致显着减速，但在运行时会比这更好）
尝试第三方api（我发现Postal在速度方面相当不错，当时我在上一个网站上做了类似的事情）

要对其进行模板化，请执行以下操作：

首先，将Razor Elements变成一个新类。 IE：

public class ResetPassword
{
    public string FirstName { get; set; }
    public string Email { get; set; }
    public string Token { get; set; }
    public string UrlPath { get; set; }
}

然后更改您的html以使用新类作为其模型：

@model Your.Namespace.ResetPassword
@{
    ViewBag.Title = "_EmailResetPassword";
    string link = string.Format("http://{0}/Account/ResetPassword/?tokenid={1}", Model.URLpath, Model.token); 
}
<html>   
 <head>
      <title></title>
      <style type="text/css">
      .auto-style1 {
         text-align: center;
      }
      .auto-style2 {
         background: white;
         text-align: left;
         font-size: 11.0pt;
         font-family: Helvetica, sans-serif;
         color: #4D4D4D;
      }
      </style>
</head>
<body>
    <div class="auto-style1">

    <h3 class="auto-style2">Dear @Model.FirstName,</h3>

    <h3 class="auto-style2">We have reset your password at Eph Apparel for the username: @Model.UserName</h3>

    <h3 class="auto-style2">Please click on the following link to create a new password:</h3>

    <h3 style='text-align:center;background:white'><span lang=EN-CA
    style='font-size:11.0pt;font-family:"Helvetica","sans-serif"'>
    <a href="@link">Reset Password</a></span></h3>

    <h3 style='text-align:center;background:white'><span lang=EN-CA
    style='font-size:11.0pt;font-family:"Segoe UI","sans-serif";color:#4D4D4D'>LIKE US ON </span>
    <span> <a href="https://www.facebook.com/ephapparel" target="_blank"><img alt="" width=25 height=22
    src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/fb_icon.png" ></a></span>
    &nbsp;<span lang=EN-CA style='font-size:11.0pt;font-family:"Segoe UI","sans-serif";
    color:#4D4D4D'>&nbsp;FOLLOW US ON </span><span lang=EN-CA></span>
    <span><a href="https://www.twitter.com/ephApparel" target="_blank"><img alt="" width=25 height=23
    src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/twitter_icon.png"></a></span></h3>
    <br>
    <img alt="" src="http://ephoms-prod.azurewebsites.net/images/eph_graphics/eph_logo.png">
    </div>

</body>

最后，回到您的代码，尝试以下方法：

  private string ResetPassword(Customer oCustomer, string oToken)
  {    
      string template = HostingEnvironment.MapPath("/bin/EmailTemplates/_EmailResetPassword.cshtml");
      ResetPassword password = new ResetPassword
      {
          FirstName = oCustomer.FirstName, 
          UserName = oCustomer.Email, 
          token = oToken, 
          URLpath = GetConfigSettingById(3)
      };
      var templateService = new TemplateService(); 
      return templateService.Parse(File.ReadAllText(template), password, null, "Reset");
  }

尝试使用此功能或第三方API，并告知我们结果！（如果您需要有关Postal的帮助，请在上面提出新问题，我会很乐意提供一些意见）

RazorEngine很慢

1 个答案: