显示来自Respose.WriteFile()/ Response.ContentType的广告内容

Question

如何从"动态"aspx页面显示任何添加内容？目前我正在使用System.Web.HttpResponse"Page.Response"将存储在Web服务器上的文件写入Web请求.

这将允许人们点击http://www.foo.com?Image=test.jpg类型的URL 并在他们的浏览器中显示图像.因此,您可能知道这围绕着Response.ContentType的使用.

通过使用

Response.ContentType = "application/octet-stream";

我能够显示类型为gif/jpeg/png的图像(到目前为止我已经测试过了),试图显示.swf或.ico文件的位给了我一个不错的小错误.

运用

Response.ContentType = "application/x-shockwave-flash";

我可以播放Flash文件,但随后图像混乱.

那么我如何轻松选择内容类型？

Answer 1

这很难看,但最好的方法是查看文件并根据需要设置内容类型:

switch ( fileExtension )
{
    case "pdf": Response.ContentType = "application/pdf"; break; 
    case "swf": Response.ContentType = "application/x-shockwave-flash"; break; 

    case "gif": Response.ContentType = "image/gif"; break; 
    case "jpeg": Response.ContentType = "image/jpg"; break; 
    case "jpg": Response.ContentType = "image/jpg"; break; 
    case "png": Response.ContentType = "image/png"; break; 

    case "mp4": Response.ContentType = "video/mp4"; break; 
    case "mpeg": Response.ContentType = "video/mpeg"; break; 
    case "mov": Response.ContentType = "video/quicktime"; break; 
    case "wmv":
    case "avi": Response.ContentType = "video/x-ms-wmv"; break; 

    //and so on          

    default: Response.ContentType = "application/octet-stream"; break; 
}