Asp.net实现直接在浏览器预览Word、Excel、PDF、Txt文件（附源码）

http://www.cnblogs.com/gossip/p/3473024.html

功能说明

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

DemoFiles 存放可测试文件
Default.aspx 启动页
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();

}

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

Microsoft Word 15.0
Microsoft Excel 15.0



预览效果

1、Word



2、Excel



3、Pdf



4、Txt



未解决的问题

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