AJAX电子邮件处理

【核心代码】

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

///引入新的命名空间
using ASPNETAJAXWeb.AjaxMail;
using System.Net.Mail;
using System.Text;
using System.IO;

public partial class SendMail : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {   ///获取收件人的地址
		if(Request.Params["Address"] != null)
		{
			tbTo.Text = Request.Params["Address"].ToString();
		}
    }
	protected void btnCommit_Click(object sender,EventArgs e)
	{
		int size = 0;

		///添加发件人地址
		string from = "admin@dorient.com";
		MailMessage mail = new MailMessage();
		mail.From = new MailAddress(from);
		size  = mail.From.Address.Length;

		///添加收件人地址
		string split = ";";
		string[] toList = tbTo.Text.Trim().Split(split.ToCharArray());
		for(int i = 0; i < toList.Length; i  )
		{
			mail.To.Add(toList[i].Trim());
		}
		size  = tbTo.Text.Length;

		///添加抄送地址；
		string[] ccList = tbCC.Text.Trim().Split(split.ToCharArray());
		for(int i = 0; i < ccList.Length; i  )
		{
			if(ccList[i].Trim().Length > 0)
			{
				mail.CC.Add(ccList[i].Trim());
			}
		}
		size  = tbCC.Text.Length;

		///添加邮件主题
		mail.Subject = tbTitle.Text.Trim();
		mail.SubjectEncoding = Encoding.UTF8;
		size  = mail.Subject.Length;

		///添加邮件内容
		mail.Body = tbBody.Text;
		mail.BodyEncoding = Encoding.UTF8;
		mail.IsBodyHtml = HtmlCB.Checked;
		size  = mail.Body.Length;

		///添加邮件附件		
		HttpFileCollection fileList = HttpContext.Current.Request.Files;
		for(int i = 0; i < fileList.Count; i  )
		{   ///添加单个附件
			HttpPostedFile file = fileList[i];
			if(file.FileName.Length <= 0 || file.ContentLength <= 0)
			{
				continue;
			}
			Attachment attachment = new Attachment(file.FileName);
			mail.Attachments.Add(attachment);
			size  = file.ContentLength;
		}

		if(mail.IsBodyHtml == true)
		{
			size  = 100;
		}

		try
		{   ///设置邮件服务器
			SmtpClient client = new SmtpClient();
			client.Host = ASP.global_asax.MAILSERVERHOST;
			client.Port = ASP.global_asax.MAILSERVERPORT;
			///发送邮件
			client.DeliveryMethod = SmtpDeliveryMethod.Network;
			client.UseDefaultCredentials = false;
			client.Send(mail);

			///保存发送的邮件
			Mail mailbox = new Mail();
			int mailID = mailbox.AddMail(mail.Subject,mail.Body,from,tbTo.Text,tbCC.Text,
				mail.IsBodyHtml,size);
			if(mailID <= 0) return;
			///保存发送邮件的附件
			for(int i = 0; i < fileList.Count; i  )
			{   ///添加单个附件
				HttpPostedFile file = fileList[i];
				if(file.FileName.Length <= 0 || file.ContentLength <= 0)
				{
					continue;
				}
				///创建基于时间的文件名称
				string fileName = AjaxMailSystem.CreateDateTimeString();
				string extension = Path.GetExtension(file.FileName);
				///构建保存文件位置的路径
				string url = "MailAttachments/"   fileName   extension;
				///映射为物理路径
				string fullPath = Server.MapPath(url);
				///保存附件到硬盘中
				file.SaveAs(fullPath);
				///保存发送邮件的附件
				mailbox.AddMailAttachment(
					Path.GetFileName(file.FileName),
					url,
					mailID);
			}

			///如果发送邮件成功，重定向到发件箱
			Response.Redirect("~/Mailbox.aspx?MailboxID=2");
		}
		catch
		{
			///
		}
	}
}