如何从 asp.net 网站发送 HTML 电子邮件

Question

在我的 Asp.net 网站中，我创建了新用户，我要做的就是从网站向用户发送电子邮件以及他们的登录详细信息。我创建了一个网络服务来发送电子邮件，它工作正常。我想在发送给用户的电子邮件中添加一些 HTML 样式。

所以我创建了一个 HTML 电子邮件格式，并将其作为 HTML 页面保存在项目内部的文件夹（资源）中。如何从资源文件夹中读取 HTML 页面并将其与“BODY”参数中的以下代码一起附加并将其发送到 webservices 方法。还有如何编辑 html 文件，以便在将其发送到 web 服务之前将用户登录详细信息包含在其中。谢谢

将值传递给 webservice 方法以发送电子邮件的 C# 代码

       string subject = "login details";
       //call the webservice to send email to the newly created user
       ServiceClient service = new ServiceClient();
       service.sendEmail(newuseremail, subject, BODY, message, myemail);

Answer 1

对于如何阅读 html 页面 - 没有什么特别的，您必须将其作为一个简单的文本文件来处理，并使用 StreamReader 进行阅读。 为了能够对内容进行一些更改，请考虑使用一些可能不会出现在其他地方的 html 页面中的模式，例如：“$$USER$$”，并在读取文件后，将此类出现替换为用户名，或者任何你希望它被替换的东西。 为了能够从服务发送 html 电子邮件，您必须将 MailMessage 实例的属性（如果没有记错 IsBodyHtml）设置为 true。

仅此而已。

Answer 2

这是一个包含你需要的一切的类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Mail;

/// <summary>
/// Wrapper class for the System.Net.Mail objects
/// </summary>
public class SmtpMailMessage : IDisposable
{
    #region declarations

    MailMessage Message;
    SmtpClient SmtpMailClient;

    #endregion

    #region constructors

    /// <summary>
    /// Default constructor for the SmtpMailMessage class
    /// </summary>
    public SmtpMailMessage()
    {
        //initialize the mail message
        Message = new MailMessage();
        Message.Priority = MailPriority.Normal;
        Message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;            
        Message.From = new MailAddress("xxx@abc.com");           

        //initialize the smtp client
        SmtpMailClient = new SmtpClient();
        SmtpMailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
        SmtpMailClient.Host = "192.168.0.1";
        SmtpMailClient.Port = 25;
    }

    /// <summary>
    /// Parameterized constructor for the SmtpMailMessage class. Allows for override of the default
    /// SMTP host and port number
    /// </summary>
    /// <param name="HostIP">The IP address of the exchange server</param>
    /// <param name="PortNumber">The port number for ingoing and outgoing SMTP messages</param>
    public SmtpMailMessage(string HostIP, int PortNumber) : this()
    {
        //override the smtp host value
        SmtpMailClient.Host = HostIP;

        //override the smtp port value
        SmtpMailClient.Port = PortNumber;
    }

    #endregion

    #region subject / body

    /// <summary>
    /// The body content of the mail message
    /// </summary>
    public string Body
    {
        get
        {
            return Message.Body;
        }
        set
        {
            Message.Body = value;
        }
    }

    /// <summary>
    /// the subject of the mail message
    /// </summary>
    public string Subject
    {
        get
        {
            return Message.Subject;
        }
        set
        {
            Message.Subject = value;
        }
    }

    #endregion

    #region mail type

    /// <summary>
    /// Gets or sets a value that determines whether the mail message
    /// should be formatted as HTML or text
    /// </summary>
    public bool IsHtmlMessage
    {
        get
        {
            return Message.IsBodyHtml;
        }
        set
        {
            Message.IsBodyHtml = value;
        }
    }

    #endregion

    #region sender

    /// <summary>
    /// Gets or sets the from address of this message
    /// </summary>
    public string From
    {
        get
        {
            return Message.From.Address;
        }
        set
        {
            Message.From = new MailAddress(value);
        }
    }

    #endregion

    #region recipients

    /// <summary>
    /// Gets the collection of recipients
    /// </summary>
    public MailAddressCollection To
    {
        get
        {
            return Message.To;

        }
    }

    /// <summary>
    /// Gets the collection of CC recipients 
    /// </summary>
    public MailAddressCollection CC
    {
        get
        {
            return Message.CC;
        }
    }

    /// <summary>
    /// Gets the collection of Bcc recipients
    /// </summary>
    public MailAddressCollection Bcc
    {
        get
        {
            return Message.Bcc;
        }
    }

    #endregion

    #region delivery notification

    /// <summary>
    /// Gets or sets the delivery notification settings for this message
    /// </summary>
    public DeliveryNotificationOptions DeliveryNotifications
    {
        get
        {
            return Message.DeliveryNotificationOptions;
        }
        set
        {
            Message.DeliveryNotificationOptions = value;
        }
    }

    #endregion

    #region priority

    /// <summary>
    /// Gets or sets the Priority of this message
    /// </summary>
    public MailPriority PriorityLevel
    {
        get
        {
            return Message.Priority;
        }
        set
        {
            Message.Priority = value;
        }
    }

    #endregion

    #region send methods

    /// <summary>
    /// Sends the message anonymously (without credentials)
    /// </summary>
    public void Send()
    {
        SmtpMailClient.Send(Message);
    }

    /// <summary>
    /// Sends the message with authorization from a network account   
    /// </summary>
    /// <param name="Username">The Windows username of the authorizing user</param>
    /// <param name="Password">The Windows password of the authorizing user</param>
    /// <param name="Domain">The domain name of the network to which the authorizing user belongs</param>
    public void Send(string Username, string Password, string Domain)
    {
        //attach a network credential to this message using the information passed into the method
        SmtpMailClient.Credentials = new NetworkCredential(Username, Password, Domain);

        //send the message
        SmtpMailClient.Send(Message);
    }

    #endregion

    #region IDisposable implementation

    ~SmtpMailMessage()
    {
        Dispose(false);
    }

    public void Dispose()
    {
        Dispose(true);            
    }

    protected virtual void Dispose(bool disposing)
    {
        if (disposing)
        {
            if (Message != null)
                Message.Dispose();
            Message = null;                
            SmtpMailClient = null;
        }
    }

    #endregion        
}

Answer 3

您希望将 HTML 文件作为字符串读取。我假设您可以在本地访问它。

string strHTML=File.ReadAllText("myfile.html");

这也是重复的：Send a email with a HTML file as body (C#)

Answer 4

string BODY = String.Empty;
string PageName = "[Path to resource]"; //example C:\DataSource\Website\DomainName\RousourceFolder\page.html

BODY = new StreamReader(PageName).ReadToEnd();