HTML格式转成MHT格式的组件

using System;


using System.Runtime.InteropServices;


using System.Text;


using System.IO;






namespace HTMLConversion


{


    /// <summary>


    /// HtmlConvertToMht 类


    /// </summary>


    #region HtmlConvertToMht 类的实现


    public class HtmlConvertToMhtByCdo : IHtmlConvertToMht


    {


        public HtmlConvertToMhtByCdo()


        {


            //


            // TODO: 在此处添加构造函数逻辑


            //


        }


        


        #region 变量


        


        string _CharSet="gb2312";


        


        #endregion


        


        #region 属性


        public string CharSet


        {


            get


            {


                return _CharSet;


            }


            set


            {


                _CharSet = value;


            }


        }


        #endregion


        


        #region 方法


        /// <summary>


        /// 把Html格式二进制流转换成Mht格式的二进制流


        /// </summary>


        /// <param name="htmlUrl">Html格式的二进制流</param>


        /// <returns>Mht格式的二进制流</returns>


        public byte[] ConvertHtmlUrlToMht(string htmlUrl)


        {


            string strMhtContent = string.Empty;


            byte[] BytMhtContent = null;


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.CreateMHTMLBody(htmlUrl,CDO.CdoMHTMLFlags.cdoSuppressNone,"",""); 


            stream = message.GetStream();


            stream.Charset = _CharSet;


            strMhtContent= stream.ReadText(stream.Size);


            BytMhtContent = Encoding.GetEncoding(_CharSet).GetBytes(strMhtContent);


            return BytMhtContent;


        }


        


        /// <summary>


        /// 把Html格式二进制流转换成Mht格式的二进制流,成功返回true,失败返回false


        /// </summary>


        /// <param name="htmlUrl">Html格式的二进制流</param>


        /// <param name="filePath">Mht文件的保存路径</param>


        /// <returns>操作结果 成功:true,失败;false</returns>


        public bool ConvertHtmlUrlToMht(string htmlUrl,string filePath)


        {


            bool isConvertHtmlBytesToMht = false;


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.CreateMHTMLBody(htmlUrl,CDO.CdoMHTMLFlags.cdoSuppressNone,"",""); 


            stream = message.GetStream();


            stream.SaveToFile(filePath,ADODB.SaveOptionsEnum.adSaveCreateOverWrite);


            message=null;


            stream.Close();


            isConvertHtmlBytesToMht=true;


            return isConvertHtmlBytesToMht;


        }


        /// <summary>


        /// 把Html格式二进制流转换成Mht格式的二进制流


        /// </summary>


        /// <param name="htmlContent">Html格式的二进制流</param>


        /// <returns>Mht格式的二进制流</returns>


        public byte[] ConvertHtmlBytesToMht(byte[] htmlContent)


        {


            string strMhtContent = string.Empty;


            string strHtmlContent =  Encoding.Default.GetString(htmlContent);


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.HTMLBody = strHtmlContent;


            stream = message.GetStream();


            stream.Charset = _CharSet;


            strMhtContent= stream.ReadText(stream.Size);


            byte[] BytMhtContent = Encoding.GetEncoding(_CharSet).GetBytes(strMhtContent);


            return BytMhtContent;


        }


        


        /// <summary>


        /// 根据输入的Html文本内容(二进制)返回Mht文本内容(二进制流),成功返回true,失败返回false


        /// </summary>


        /// <param name="htmlContent">Html格式的二进制流</param>


        /// <param name="filePath">Mht文件的保存路径</param>


        /// <returns>操作结果 成功:true,失败;false</returns>


        public bool ConvertHtmlBytesToMht(byte[] htmlContent,string filePath)


        {


            bool isConvertHtmlBytesToMht = false;


            string strHtmlContent =  Encoding.GetEncoding(_CharSet).GetString(htmlContent);


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.HTMLBody = strHtmlContent;


            stream = message.GetStream();


            stream.Charset = _CharSet;


            string strMhtContent= stream.ReadText(stream.Size);


            byte[] BytMhtContent = Encoding.GetEncoding(_CharSet).GetBytes(strMhtContent);


            FileStream fileStream = new FileStream(filePath,FileMode.Create,FileAccess.Write);


            fileStream.Write(BytMhtContent,0,BytMhtContent.Length);


            message=null;


            stream.Close();


            isConvertHtmlBytesToMht=true;


            return isConvertHtmlBytesToMht;


        }


        


        /// <summary>


        /// 根据输入的Html文本内容(字符串)返回Mht文本内容(二进制流)


        /// </summary>


        /// <param name="htmlContent">Html文本内容(字符串)</param>


        /// <returns>Mht格式的二进制流</returns>


        public byte[] ConvertHtmlTextToMht(string htmlContent)


        {


            string strMhtContent = String.Empty;


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.HTMLBody = htmlContent;


            stream = message.GetStream();


            stream.Charset = _CharSet;


            strMhtContent= stream.ReadText(stream.Size);


            byte[] bytMhtContent = Encoding.GetEncoding(_CharSet).GetBytes(strMhtContent);


            return bytMhtContent;


        }


        


    /// <summary>


        /// 根据输入的Html文本内容(字符串)返回Mht文本内容(二进制流),成功返回true,失败返回false


        /// </summary>


        /// <param name="htmlContent">Html文本内容(字符串)</param>


        /// <param name="filePath">Mht文件的保存路径</param>


        /// <returns>操作结果:成功:true,失败:false</returns>


        public bool ConvertHtmlTextToMht(string htmlContent,string filePath)


        {


            bool isConvertHtmlBytesToMht = false;


            CDO.Message  message = new CDO.MessageClass();


            ADODB.Stream  stream=null;


            message.MimeFormatted =true;


            message.HTMLBody = htmlContent;


            stream = message.GetStream();


            stream.Charset = _CharSet;


            string strMhtContent= stream.ReadText(stream.Size);


            byte[] BytMhtContent = Encoding.GetEncoding(_CharSet).GetBytes(strMhtContent);


            FileStream fileStream = new FileStream(filePath,FileMode.Create,FileAccess.Write);


            fileStream.Write(BytMhtContent,0,BytMhtContent.Length);


            message=null;


            stream.Close();


            isConvertHtmlBytesToMht=true;


            return isConvertHtmlBytesToMht;


        }


        #endregion


        


    } // class HtmlConvertToMhtByCdo


    #endregion


    


} // HTMLConversion