doc文档与html文档转换

using System;
using System.Data;
using System.Configuration;
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;
using Microsoft.Office.Core;
 
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        // 在此处放置用户代码以初始化页面
        Word.ApplicationClass word = new Word.ApplicationClass();
        Type wordType = word.GetType();
        Word.Documents docs = word.Documents;

        // 打开文件
        Type docsType = docs.GetType();
        object fileName = "d:\\aaa.doc";
        Word.Document doc = (Word.Document)docsType.InvokeMember("Open",
        System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { fileName, true, true });

        // 转换格式，另存为
        Type docType = doc.GetType();
        object saveFileName = "d:\\aaa.html";
        //下面是Microsoft Word 9 Object Library的写法，如果是10，可能写成：
        /*
        docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod,
         null, doc, new object[]{saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML});
        */
        ///其它格式：
        ///wdFormatHTML
        ///wdFormatDocument
        ///wdFormatDOSText
        ///wdFormatDOSTextLineBreaks
        ///wdFormatEncodedText
        ///wdFormatRTF
        ///wdFormatTemplate
        ///wdFormatText
        ///wdFormatTextLineBreaks
        ///wdFormatUnicodeText
        docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod,
         null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatHTML });

        // 退出 Word
        wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod,
         null, word, null);
 
    }
}