Asp.net实现直接在浏览器预览Word、Excel、PDF、Txt文件_.NET教程

功能说明
1. 输入文件路径，在浏览器输出文件预览信息，经测试360极速（Chrome）、IE9/10、Firefox通过
分类文件及代码说明
1. DemoFiles 存放可测试文件
2. Default.aspx 启动页
3. ExcelPreview.cs Excel预览类
  
  public static void Priview(System.Web.UI.Page p, string inFilePath, string outDirPath = "")
      {
          Microsoft.Office.Interop.Excel.Application excel = null;
          Microsoft.Office.Interop.Excel.Workbook xls = null;
          excel = new Microsoft.Office.Interop.Excel.Application();
          object missing = Type.Missing;
          object trueObject = true;
          excel.Visible = false;
          excel.DisplayAlerts = false;
          string randomName = DateTime.Now.Ticks.ToString();  //output fileName
          xls = excel.Workbooks.Open(inFilePath, missing, trueObject, missing,
                                      missing, missing, missing, missing, missing, missing, missing, missing,
                                      missing, missing, missing);
          //Save Excel to Html
          object format = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
          Workbook wsCurrent = xls;//(Workbook)wsEnumerator.Current;
          String outputFile = outDirPath + randomName + ".html";
          wsCurrent.SaveAs(outputFile, format, missing, missing, missing,
                            missing, XlSaveAsAccessMode.xlNoChange, missing,
                            missing, missing, missing, missing);
          excel.Quit();
          //Open generated Html
          Process process = new Process();
          process.StartInfo.UseShellExecute = true;
          process.StartInfo.FileName = outputFile;
          process.Start();
      }
4. PDfPreview.cs Pdf预览类

 public static void Priview(System.Web.UI.Page p, string inFilePath)    {        p.Response.ContentType = "Application/pdf";        string fileName = inFilePath.Substring(inFilePath.LastIndexOf("//") + 1);        p.Response.AddHeader("content-disposition", "filename=" + fileName);        p.Response.WriteFile(inFilePath);        p.Response.End();    }

TextFilePreview.cs 文本文件预览类

public static void Preview(System.Web.UI.Page p, string inFilePath)    {        string fileName = inFilePath.Substring(inFilePath.LastIndexOf("//") + 1);        p.Response.ContentType = "text/plain";        p.Response.ContentEncoding = System.Text.Encoding.UTF8;  //保持和文件的编码格式一致        p.Response.AddHeader("content-disposition", "filename=" + fileName);        p.Response.WriteFile(inFilePath);        p.Response.End();    }

WordPreview.cs Word预览类
Readme.txt 说明了基本功能及引用Com组件的方法(首先需要安装office)，需引入的组件包括
1. Microsoft Word 15.0
2. Microsoft Excel 15.0

预览效果
1、Word

2、Excel

3、Pdf

4、Txt
未解决的问题
1. Pdf、txt文件只能在当前页显示，并导致后退键无效，请各位帮忙解决此两种文件和doc、xls一样在新的tab中打开
源码下载

Asp.net实现直接在浏览器预览Word、Excel、PDF、Txt文件_.NET教程_编程技术