asp.net 实现在线浏览word文档（word转html）

最近在做word文档在线浏览，找了种种方法、控件之后，回归到word转HTML，在线浏览....

一下是后台代码，前台html页面默认代码即可。

因为用文件如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using Word = Microsoft.Office.Interop.Word;

using Word = Microsoft.Office.Interop.Word;

没有引用好组件时，此处会报错，找不到Interop之类的，

这时需要在引用里面引用组件.net下的Microsoft.Office.Interop.Visio，Microsoft.Office.Interop.Word

后台代码如下：

  protected void Page_Load(object sender, EventArgs e)
        {
            string relativePath = Request.QueryString["FilePath"]; //相对路径 ，从跳转页面得到文件相对路径。
            if (relativePath == "" || relativePath==null) return;
            string serverPath = Server.MapPath(relativePath);  //相对转服务器对应路径
            string html = serverPath.Replace(".doc", ".html");

            if (!File.Exists(@html)) //html页面不存在,把word转换成html
            {
                string filename = WordToHtml(serverPath);
                StreamReader fread = new StreamReader(filename, System.Text.Encoding.GetEncoding("gb2312"));
                string ss = fread.ReadToEnd();
                Response.Write(ss); //直接写字符串到网页会发现，文字可显示，图片、表格无法显示。因此在后面重跳转到html文件页面。
                fread.Close();
                fread.Dispose();
            }

            html = relativePath.Replace(".doc", ".html");
                               //html文件也存储在同样的路径下，
                              //只需要改了原路径的后缀即可得到html文件路径
            Response.Redirect(html);
            return;
        }

         /// <summary>
        /// word转成html
        /// </summary>
        /// <param name="wordFileName"></param>
        private string WordToHtml(object wordFileName)
        {
            //在此处放置用户代码以初始化页面
            Word.Application word = new Word.Application();
            Type wordType = word.GetType();
            Word.Documents docs = word.Documents;
            //打开文件
            Type docsType = docs.GetType();
            Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { wordFileName, true, true });
            //转换格式，另存为
            Type docType = doc.GetType();
            string wordSaveFileName = wordFileName.ToString();
            string strSaveFileName = wordSaveFileName.Substring(0, wordSaveFileName.Length - 3) + "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);
            //退出 Word
            wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
            return saveFileName.ToString();
        }