从用户输入生成电子邮件正文，从控制器发送电子邮件？

Question

基本上，我有一个 html 表单，我想从中获取用户输入，生成电子邮件正文，然后发送电子邮件。我以前从未编写过这样的程序，所以过去几天我一直在研究从网站发送电子邮件的不同方法，但我发现的示例都与我的确切情况无关。用我发现的不同方法鬼混也没有结果。

就目前而言，我有一个声明每个字符串的模型：

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;

namespace myWebsite.Models
{
    public class ServiceRequest
    {
        [Key]
        public int serviceRequestID { get; set; }
        [Required]
        public string serviceRequestName { get; set; }
        [Required]
        public string serviceRequestEmail { get; set; }
        public string serviceRequestCompany { get; set; }
        public string serviceRequestAddress { get; set; }
        [Required]
        public string serviceType { get; set; }
        public string serviceRequestCity { get; set; }
        public string serviceRequestState { get; set; }
        public string serviceRequestZip { get; set; }
        [Required]
        public string serviceRequestNumber { get; set; }
        public string serviceRequestComments { get; set; }

    }
}

然后在视图中，我使用 @html 帮助器创建了表单，将模型中的字符串链接到用户输入字段：

@model myWebsite.ServiceRequest

@using (Html.BeginForm("Email", "ServiceRequestsController", FormMethod.Post))
{
    <div class="servicesReq">
        <div class="serviceReqForm">
            <div class="col-left">
                <label>
                    <span class="required">* </span><span>Name:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestName)
                </label><br />
                        <label>
                            <span class="required">* </span><span>Email:</span><br />
                            @Html.TextBoxFor(model => model.serviceRequestEmail)
                        </label><br />
                <label>
                    <span>Company:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestCompany)
                </label><br />
                <label>
                    <span>Address:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestAddress)
                </label><br /><br />
            </div>
            <div class="serviceTypeGrid">
                <span class="required">* </span><span>Please choose what type of servicing you require:</span><br /><br />
            </div>
            <div class="col-left2">
                <label class="serviceType">
                    @Html.RadioButton("serviceType", "Electrical") Electrical<br/>
                    @Html.RadioButton("serviceType", "Lighting") Lighting<br />
                    @Html.RadioButton("serviceType", "Energy") Energy<br />
                    @Html.RadioButton("serviceType", "Multiple") Multiple
                </label><br /><br />
            </div>
            <div class="col-right">
                <label>
                    <span>City:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestCity)
                </label><br />
                <label>
                    <span>State:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestState)
                </label><br />
                <label>
                    <span>Zip Code:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestZip)
                </label><br />
                <label>
                    <span class="required">* </span><span>Phone Number:</span><br />
                    @Html.TextBoxFor(model => model.serviceRequestNumber)
                </label><br />
            </div>
            <label class="commentText">
                <span>Comments:</span><br />
                @Html.TextAreaFor(model => model.serviceRequestComments, new { @class = "servReqComment" })
            </label>
            <div class="formSubmitButton">
                <input type="submit" value="Submit" /><br />
                <br />
            </div>
        </div>

    </div>
}

最后是我的控制器逻辑 - 这就是我几乎完全迷失的地方：

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;
using System.Threading;
using System.Web;
using System.Web.Mvc;
using myWebsite.Models;

namespace myWebsite.Controllers
{
    public class ServiceRequestsController : Controller
    {
        private CuttingEdgeWebsite2_0Context db = new CuttingEdgeWebsite2_0Context();

        // GET: ServiceRequests
        public ActionResult ServiceRequest()
        {
            return View();
        }

    }
}

正如我之前所说，我已经查找了几种不同的方法，但它们都涉及对电子邮件正文进行硬编码。我用我有限的知识尝试过的一切，我无法从表单上的用户输入生成正文。虽然我对如何实际发送邮件有某种想法，但对该过程的任何深入澄清也将非常有帮助。如果有任何我未在此处提供的信息可能对您有用，请告诉我。

Answer 1

这应该让你开始。以编程方式发送电子邮件有（至少）四个属性。它们是 fromaddres、toaddress、subject 和 body。

在您的表单中，您将希望利用验证摘要。这向用户提供了验证反馈。只需插入

@Html.ValidationSummary(true, "", new { @class = "text-danger" })

就在您的 BeginForm 行之后

根据您的代码，这种事情会起作用。 在您的控制器中，您需要一种方法来处理表单数据的发布和一些发送电子邮件的方法（为了良好的设计，应该采用单独的方法）。

[HttpPost]    
public async Task Email(ServiceRequest servicerequest)
{
    try
    {
        string from = "youremailadress@gmail.com"
        string to = servicerequest.serviceRequestEmail;
        string subject = servicerequest.serviceType;
        //it's up to you what you want to put in the body
        string body = String.Format("city:{0}\n\nComments:{1}\n\n
        PhoneNumber\n\n",serviceRequest.serviceRequestCity, 
        serviceRequest.serviceRequestComments, serviceRequest.serviceRequestNumber);
        string email = System.Configuration.ConfigurationManager.AppSettings["email"];
        string password = 
            System.Configuration.ConfigurationManager.AppSettings["emailpassword"];
        string server = 
            System.Configuration.ConfigurationManager.AppSettings["emailserver"];
        string emailport = 
            System.Configuration.ConfigurationManager.AppSettings["emailport"];
        int port = Int32.Parse(emailport);
        var client = new SmtpClient(server, port)
        {
            Credentials = new NetworkCredential(email, password),
            EnableSsl = true
        };
        await client.SendMailAsync("from", to, subject, body);
        Console.WriteLine("Sent");
    }
    catch (Exception e)
    {
       Console.WriteLine(String.Format("Error occured at {0}. Full stack trace of error {1}", System.DateTime.Now.ToString(),e.ToString()));
    }
}