ASP.NET读取配置文件发送邮件

之前写过一篇文章C#使用SMTP发送邮件

后来做了改进，改成读取独立的配置文件，本文只记录读取配置文件的部分，发送部分见上面的链接。

读取配置文件C#代码：

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
using System.Xml;
using System.IO;

//using log4net;
//using log4net.Config;

namespace EmailTest.Common
{

    #region SMTPEmailSetting信息
    /// <summary>
    /// SMTPEmailSetting信息
    /// </summary>
    public class SMTPEmailSetting
    {
        /// <summary>
        /// 私有日志对象
        /// </summary>
        //private static readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        private EmailInfo _emailInfo;
        public EmailInfo EmailInfo
        {
            get { return _emailInfo; }
            set { _emailInfo = value; }
        }

        #region 模板中的方法
        /// <summary>
        /// 将对象序列化为XML字符串
        /// </summary>
        /// <returns></returns>
        public string ToXml()
        {

            StringWriter Output = new StringWriter(new StringBuilder());
            string Ret = "";

            try
            {
                XmlSerializer s = new XmlSerializer(this.GetType());
                s.Serialize(Output, this);

                // To cut down on the size of the xml being sent to the database, we'll strip
                // out this extraneous xml.

                Ret = Output.ToString().Replace("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"", "");
                Ret = Ret.Replace("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"", "");
                Ret = Ret.Replace("<?xml version=\"1.0\" encoding=\"utf-16\"?>", "").Trim();
            }
            catch (Exception ex)
            {
                //logger.Error("对象序列化失败！");
                //logger.Error("异常描述：\t" + ex.Message);
                //logger.Error("异常方法：\t" + ex.TargetSite);
                //logger.Error("异常堆栈：\t" + ex.StackTrace);
                throw ex;
            }

            return Ret;
        }

        /// <summary>
        /// 将ＸＭＬ字符串中反序列化为对象
        /// </summary>
        /// <param name="Xml">待反序列化的xml字符串</param>
        /// <returns></returns>
        public SMTPEmailSetting FromXml(string Xml)
        {
            StringReader stringReader = new StringReader(Xml);
            XmlTextReader xmlReader = new XmlTextReader(stringReader);
            SMTPEmailSetting obj;
            try
            {
                XmlSerializer ser = new XmlSerializer(this.GetType());
                obj = (SMTPEmailSetting)ser.Deserialize(xmlReader);
            }
            catch (Exception ex)
            {
                //logger.Error("对象反序列化失败！");
                //logger.Error("异常描述：\t" + ex.Message);
                //logger.Error("异常方法：\t" + ex.TargetSite);
                //logger.Error("异常堆栈：\t" + ex.StackTrace);
                throw ex;
            }
            xmlReader.Close();
            stringReader.Close();
            return obj;
        }

        /// <summary>
        /// 从xml文件中反序列化对象
        /// </summary>
        /// <param name="xmlFileName">文件名</param>
        /// <returns>反序列化的对象，失败则返回null</returns>
        public SMTPEmailSetting fromXmlFile(string xmlFileName)
        {
            Stream reader = null;
            SMTPEmailSetting obj = new SMTPEmailSetting();
            try
            {
                XmlSerializer serializer = new XmlSerializer(typeof(SMTPEmailSetting));
                reader = new FileStream(xmlFileName, FileMode.Open, FileAccess.Read, FileShare.Read);
                obj = (SMTPEmailSetting)serializer.Deserialize(reader);
                reader.Close();
            }
            catch (Exception ex)
            {
                //logger.Error("读取配置文件" + xmlFileName + "出现异常！");
                //logger.Error("异常描述：\t" + ex.Message);
                //logger.Error("引发异常的方法：\t" + ex.TargetSite);
                //logger.Error("异常堆栈：\t" + ex.StackTrace);
                obj = null;
            }
            finally
            {
                if (reader != null)
                {
                    reader.Close();
                }
            }
            return obj;
        }

        /// <summary>
        /// 从xml文件中反序列化对象，文件名默认为：命名空间+类名.config
        /// </summary>
        /// <returns>反序列化的对象，失败则返回null</returns>
        public SMTPEmailSetting fromXmlFile()
        {
            string SettingsFileName = this.GetType().ToString() + ".config";
            return fromXmlFile(SettingsFileName);
        }

        /// <summary>
        /// 将对象序列化到文件中
        /// </summary>
        /// <param name="xmlFileName">文件名</param>
        /// <returns>布尔型。True：序列化成功；False：序列化失败</returns>
        public bool toXmlFile(string xmlFileName)
        {
            Boolean blResult = false;

            if (this != null)
            {
                Type typeOfObj = this.GetType();
                //string SettingsFileName = typeOfObj.ToString() + ".config";

                try
                {
                    XmlSerializer serializer = new XmlSerializer(typeOfObj);
                    TextWriter writer = new StreamWriter(xmlFileName);
                    serializer.Serialize(writer, this);
                    writer.Close();
                    blResult = true;
                }
                catch (Exception ex)
                {
                    //logger.Error("保存配置文件" + xmlFileName + "出现异常！");
                    //logger.Error("异常描述：\t" + ex.Message);
                    //logger.Error("引发异常的方法：\t" + ex.TargetSite);
                    //logger.Error("异常堆栈：\t" + ex.StackTrace);
                }
                finally
                {
                }
            }
            return blResult;
        }

        /// <summary>
        /// 将对象序列化到文件中，文件名默认为：命名空间+类名.config
        /// </summary>
        /// <returns>布尔型。True：序列化成功；False：序列化失败</returns>
        public bool toXmlFile()
        {
            string SettingsFileName = this.GetType().ToString() + ".config";
            return toXmlFile(SettingsFileName);
        }
        #endregion
    }
    #endregion

    #region 重复的节点对应声明类
    /// <summary>
    /// SMTPEmailSetting节点
    /// </summary>
    public class EmailInfo
    {
        private string _publicEmail;
        public string PublicEmail
        {
            get { return _publicEmail; }
            set { _publicEmail = value; }
        }

        private string _publicEmailPwd;
        public string PublicEmailPwd
        {
            get { return _publicEmailPwd; }
            set { _publicEmailPwd = value; }
        }

        private string _publicEmailSMTPURL;
        public string PublicEmailSMTPURL
        {
            get { return _publicEmailSMTPURL; }
            set { _publicEmailSMTPURL = value; }
        }

        private string _publicEmailTitle;
        public string PublicEmailTitle
        {
            get { return _publicEmailTitle; }
            set { _publicEmailTitle = value; }
        }

        private string _publicEmailContent;
        public string PublicEmailContent
        {
            get { return _publicEmailContent; }
            set { _publicEmailContent = value; }
        }
    }
    #endregion

}

配置文件示例：

<?xml version="1.0" encoding="utf-8" ?>
<SMTPEmailSetting>
    <EmailInfo>
        <PublicEmail>yourEmail@sina.com</PublicEmail>
        <PublicEmailPwd>yourPWD</PublicEmailPwd>
        <PublicEmailSMTPURL>smtp.sina.com</PublicEmailSMTPURL>
        <PublicEmailTitle>“{0}”</PublicEmailTitle>
        <PublicEmailContent>{0}</PublicEmailContent>
    </EmailInfo>
</SMTPEmailSetting>

使用示例：

SMTPEmailSetting emailSetting = new SMTPEmailSetting().fromXmlFile(Server.MapPath("SMTPEmailSetting.config"));
string returnStr = SMTPEmail.SendEmail(lblEmail.Text, new Hashtable(),
                string.Format(emailSetting.EmailInfo.PublicEmailTitle, txtTitle.Text.Trim()),
                string.Format(emailSetting.EmailInfo.PublicEmailContent, txtRemark.Text),
                emailSetting.EmailInfo.PublicEmail,
                emailSetting.EmailInfo.PublicEmailPwd,
                emailSetting.EmailInfo.PublicEmailSMTPURL);

其他思路，使用web.config的外部文件（避免修改导致程序重启session丢失），参见http://msdn.microsoft.com/zh-cn/library/ms228154(v=vs.100).aspx

示例：

<appSettings
   file="relative file name" >
</appSettings>