Office系列在线预览

最近客户有个需求，需要在线预览PPT、Excel、Word,开始打算用第三方组建去读取 office系列，然后生成html,这样的话样式相当于丢了，只剩下数据，而且第三方组件对office版本支持不够完善，最关键的是还是样式丢了！

最后决定，用户在上传的过程中调用office API里面的saveAs，自动生成了静态html,预览的时候就直接访问的该html页面。

[a].WordToHtml

 1  public static string WordToHtml(string path, string savePath, string wordFileName)
 2         {
 3 
 4             //在此处放置用户代码以初始化页面
 5             Microsoft.Office.Interop.Word.Application word = new Word.Application();
 6 
 7             Type wordType = word.GetType();
 8 
 9             Word.Documents docs = word.Documents;
10 
11             //打开文件
12             Type docsType = docs.GetType();
13             Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { path, true, true });
14 
15             //转换格式，另存为
16             Type docType = doc.GetType();
17 
18             string wordSaveFileName = savePath;
19 
20             string strSaveFileName = savePath+wordFileName + ".html";
21 
22             object saveFileName = (object)strSaveFileName;
23 
24             docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });
25 
26             docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
27 
28             //退出 Word
29             wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
30 
31             return saveFileName.ToString();
32         }

[b].ExcelToHtml

 1  public static void ExcelToHtml(string path,string savePath, string wordFileName)
 2         {
 3             string str = string.Empty;
 4             Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application();
 5             Microsoft.Office.Interop.Excel.Workbook workbook = null;
 6             Microsoft.Office.Interop.Excel.Worksheet worksheet = null;
 7             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);
 8             worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
 9             object htmlFile =savePath+wordFileName+ ".html";
10             object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
11             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);
12             object osave = false;
13             workbook.Close(osave, Type.Missing, Type.Missing);
14             repExcel.Quit();
15            
16         }

[c].PPTToHtml

 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, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);
            prsPres.SaveAs(strDestinationFile, Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsHTML, MsoTriState.msoTrue);
            prsPres.Close();
            ppApp.Quit();

        }

当完成该功能的时候，上帝那边传来噩耗，他们表示不愿意在服务器上安装office，所以我们继续寻找解决方案······