office转换为html在线预览

        /// 

        ///  word 转换为html
        /// 
        /// 要转换的文档的路径
        /// 转换成的html的保存路径
        /// 转换后html文件的名字
        private  void WordToHtml(string path, string savePath, string wordFileName)
        {
            Word.ApplicationClass word = new Word.ApplicationClass();
            Type wordType = word.GetType();
            Word.Documents docs = word.Documents;
            Type docsType = docs.GetType();
            Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] {(object)path, true, true });
            Type docType = doc.GetType();
            string strSaveFileName = savePath + wordFileName + ".html";
            object saveFileName = (object)strSaveFileName;
            docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });
            docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
            wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
        }

         /// 

         /// excel 转换为html
     　　/// 
     　　/// 要转换的文档的路径
     　　/// 转换成的html的保存路径
     　　/// 转换后html文件的名字
         public static void ExcelToHtml(string path, string savePath, string wordFileName)
         {
             string str = string.Empty;
             Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application();
             Microsoft.Office.Interop.Excel.Workbook workbook = null;
             Microsoft.Office.Interop.Excel.Worksheet worksheet = null;
             workbook = repExcel.Application.Workbooks.Open(path, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
             worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
             object htmlFile = savePath + wordFileName + ".html";
             object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
             workbook.SaveAs(htmlFile, ofmt, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
             object osave = false;
             workbook.Close(osave, Type.Missing, Type.Missing);
             repExcel.Quit();
         }

        /// 

    　　/// ppt转换为html
    　　/// 
    　　/// 要转换的文档的路径
    　　/// 转换成的html的保存路径
    　　/// 转换后html文件的名字
        public static void PPTToHtml(string path, string savePath, string wordFileName)
        {
            Microsoft.Office.Interop.PowerPoint.Application ppApp = new Microsoft.Office.Interop.PowerPoint.Application();
            string strSourceFile = path;
            string strDestinationFile = savePath + wordFileName + ".html";
            Microsoft.Office.Interop.PowerPoint.Presentation prsPres = ppApp.Presentations.Open(strSourceFile, Microsoft.Office.Core.MsoTriState.msoTrue, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoFalse);
            prsPres.SaveAs(strDestinationFile, Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsHTML, MsoTriState.msoTrue);
            prsPres.Close();
            ppApp.Quit();
        }