C#.NET实现Word或Excel文件转为HTML文件

Word文件转html，返回相对路径

 1 private string GetPathByDocToHTML(string strFile)  2  {  3 if (string.IsNullOrEmpty(strFile))  4  {  5 return "0";//没有文件  6  }  7  8 Microsoft.Office.Interop.Word.ApplicationClass word = new Microsoft.Office.Interop.Word.ApplicationClass();  9 Type wordType = word.GetType(); 10 Microsoft.Office.Interop.Word.Documents docs = word.Documents; 11 12 // 打开文件 13 Type docsType = docs.GetType(); 14 15 object fileName = strFile; 16 17 Microsoft.Office.Interop.Word.Document doc = (Microsoft.Office.Interop.Word.Document)docsType.InvokeMember("Open", 18 System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { fileName, true, true }); 19 20 // 转换格式，另存为html 21 Type docType = doc.GetType(); 22 //给文件重新起名 23 string filename = System.DateTime.Now.Year.ToString() + System.DateTime.Now.Month.ToString() + System.DateTime.Now.Day.ToString() + 24 System.DateTime.Now.Hour.ToString() + System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString(); 25 26 string strFileFolder = "../html/"; 27 DateTime dt = DateTime.Now; 28 //以yyyymmdd形式生成子文件夹名 29 string strFileSubFolder = dt.Year.ToString(); 30 strFileSubFolder += (dt.Month < 10) ? ("0" + dt.Month.ToString()) : dt.Month.ToString(); 31 strFileSubFolder += (dt.Day < 10) ? ("0" + dt.Day.ToString()) : dt.Day.ToString(); 32 string strFilePath = strFileFolder + strFileSubFolder + "/"; 33 // 判断指定目录下是否存在文件夹，如果不存在，则创建 34 if (!Directory.Exists(Server.MapPath(strFilePath))) 35  { 36 // 创建up文件夹 37  Directory.CreateDirectory(Server.MapPath(strFilePath)); 38  } 39 40 //被转换的html文档保存的位置 41 // HttpContext.Current.Server.MapPath("html" + strFileSubFolder + filename + ".html") 42 string ConfigPath = Server.MapPath(strFilePath + filename + ".html"); 43 object saveFileName = ConfigPath; 44 45 /*下面是Microsoft Word 9 Object Library的写法，如果是10，可能写成： 46  * docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, 47  * null, doc, new object[]{saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML}); 48  * 其它格式： 49  * wdFormatHTML 50  * wdFormatDocument 51  * wdFormatDOSText 52  * wdFormatDOSTextLineBreaks 53  * wdFormatEncodedText 54  * wdFormatRTF 55  * wdFormatTemplate 56  * wdFormatText 57  * wdFormatTextLineBreaks 58  * wdFormatUnicodeText 59 */ 60 docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, 61 null, doc, new object[] { saveFileName, Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatFilteredHTML }); 62 63 //docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, 64 // null, doc, new object[] { saveFileName, Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatFilteredHTML }); 65 66 //关闭文档 67 docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, 68 null, doc, new object[] { null, null, null }); 69 70 // 退出 Word 71 wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null); 72 //转到新生成的页面 73 //return ("/" + filename + ".html"); 74 75 //转化HTML页面统一编码格式 76  TransHTMLEncoding(ConfigPath); 77 78 return (strFilePath + filename + ".html"); 79 }

Excel文件转HTML，返回相对路径

 1 private string GetPathByXlsToHTML(string strFile)  2  {  3 if (string.IsNullOrEmpty(strFile))  4  {  5 return "0";//没有文件  6  }  7  8 //实例化Excel  9 Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application(); 10 Microsoft.Office.Interop.Excel.Workbook workbook = null; 11 Microsoft.Office.Interop.Excel.Worksheet worksheet = null; 12 13 //打开文件，n.FullPath是文件路径 14 workbook = repExcel.Application.Workbooks.Open(strFile, 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); 15 worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1]; 16 17 //给文件重新起名 18 string filename = System.DateTime.Now.Year.ToString() + System.DateTime.Now.Month.ToString() + System.DateTime.Now.Day.ToString() + 19 System.DateTime.Now.Hour.ToString() + System.DateTime.Now.Minute.ToString() + System.DateTime.Now.Second.ToString(); 20 21 string strFileFolder = "../html/"; 22 DateTime dt = DateTime.Now; 23 //以yyyymmdd形式生成子文件夹名 24 string strFileSubFolder = dt.Year.ToString(); 25 strFileSubFolder += (dt.Month < 10) ? ("0" + dt.Month.ToString()) : dt.Month.ToString(); 26 strFileSubFolder += (dt.Day < 10) ? ("0" + dt.Day.ToString()) : dt.Day.ToString(); 27 string strFilePath = strFileFolder + strFileSubFolder + "/"; 28 // 判断指定目录下是否存在文件夹，如果不存在，则创建 29 if (!Directory.Exists(Server.MapPath(strFilePath))) 30  { 31 // 创建up文件夹 32  Directory.CreateDirectory(Server.MapPath(strFilePath)); 33  } 34 string ConfigPath = Server.MapPath(strFilePath + filename + ".html"); 35 object savefilename = (object)ConfigPath; 36 37 object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml; 38 //进行另存为操作 39  workbook.SaveAs(savefilename, 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); 40 object osave = false; 41 //逐步关闭所有使用的对象 42  workbook.Close(osave, Type.Missing, Type.Missing); 43  repExcel.Quit(); 44  System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet); 45 worksheet = null; 46 //垃圾回收 47  GC.Collect(); 48  System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook); 49 workbook = null; 50  GC.Collect(); 51  System.Runtime.InteropServices.Marshal.ReleaseComObject(repExcel.Application.Workbooks); 52  GC.Collect(); 53  System.Runtime.InteropServices.Marshal.ReleaseComObject(repExcel); 54 repExcel = null; 55  GC.Collect(); 56 //依据时间杀灭进程 57 System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("EXCEL"); 58 foreach (System.Diagnostics.Process p in process) 59  { 60 if (DateTime.Now.Second - p.StartTime.Second > 0 && DateTime.Now.Second - p.StartTime.Second < 5) 61  { 62  p.Kill(); 63  } 64  } 65 66 return (strFilePath + filename + ".html"); 67 }

这里可能会遇到一个问题，由于转化为HTML文件的页面编码可能使得浏览器无法正确解读，所以需要转码，转换代码如下：

 1     private void TransHTMLEncoding(string strFilePath)  2  {  3 try  4  {  5 System.IO.StreamReader sr = new System.IO.StreamReader(strFilePath, Encoding.GetEncoding(0));  6 string html = sr.ReadToEnd();  7  sr.Close();  8 html = System.Text.RegularExpressions.Regex.Replace(html, @"<meta[^>]*>", "<meta http-equiv=Content-Type content='text/html; charset=gb2312'>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);  9 System.IO.StreamWriter sw = new System.IO.StreamWriter(strFilePath, false, Encoding.Default); 10 11  sw.Write(html); 12  sw.Close(); 13  } 14 catch (Exception ex) 15  { 16 Page.RegisterStartupScript("alt", "<script>alert('" + ex.Message + "')</script>"); 17  } 18 }

这样就可以正常在页面上正常显示了