ASP.NET MVC 项目直接预览PDF文件_实用技巧_

 @{ Layout = null; } 
 @Html.ActionLink("预览PDF","GetPdf",null,new { target="_blank"}) 

 public ActionResult GetPdf() { return new FilePathResult("~/content/The Garbage Collection Handbook.pdf", "application/pdf"); }

 public class MyPdfActionFilter : ActionFilterAttribute { public override void OnResultExecuted(ResultExecutedContext filterContext) { //Content-Disposition=attachment%3b+filename%3d%22The+Garbage+Collection+Handbook.pdf%22} var filerHeader = filterContext.HttpContext.Response.Headers.Get("Content-Disposition"); if (!string.IsNullOrEmpty(filerHeader) && filerHeader.Substring(0, "attachment".Length).ToLower().Equals("attachment")) { filterContext.HttpContext.Response.Headers["Content-Disposition"] = "inline" + filerHeader.Substring("attachment".Length, filerHeader.Length - "attachment".Length); } } }

 public class MyActionNameSelecter : ActionNameSelectorAttribute { public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo) { return actionName.Contains("-PDF文件预览"); } }

 [MyActionNameSelecter] [MyPdfActionFilter] public ActionResult GetPdf() { return new FilePathResult("~/content/The Garbage Collection Handbook.pdf", "application/pdf") //增加FileDownloadName设置，但是这会让内容以附件的形式响应到浏览器（具体参考文件响应模式：内联和附件）。 //文件变成被浏览器下载。 { FileDownloadName = "The Garbage Collection Handbook.pdf" }; }

 @{ Layout = null; } 
 @* 第二个参数可能是一个动态生成的内容，需要ACTION中增加名称选择拦截，所以自定义了一个ActionNameSelectorAttribute类满足要求。 *@ @Html.ActionLink("预览PDF", "The Garbage Collection Handbook-PDF文件预览", null,new { target="_blank"})