Question

我需要在呈现给用户之前更改完整的html响应流（使用html解析）。哪里/何时是最后一次机会？

Answer 1

恕我直言，在ASP.NET MVC环境中更改HTML响应的更好方法是使用动作过滤器。这是用于压缩输出的动作过滤器的示例：

public class CompressFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        HttpRequestBase request = filterContext.HttpContext.Request;

        string acceptEncoding = request.Headers["Accept-Encoding"];

        if (string.IsNullOrEmpty(acceptEncoding)) return;

        acceptEncoding = acceptEncoding.ToUpperInvariant();

        HttpResponseBase response = filterContext.HttpContext.Response;

        if (acceptEncoding.Contains("GZIP"))
        {
            response.AppendHeader("Content-encoding", "gzip");
            response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
        }
        else if (acceptEncoding.Contains("DEFLATE"))
        {
            response.AppendHeader("Content-encoding", "deflate");
            response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
        }
    }
}

你可以在你的行动方法上使用它：

    [CompressFilter]
    // Minifies, compresses JavaScript files and stores the response in client (browser) cache for a day
    public JavaScriptResult GetJavaScript(string jsPath)

HTH

Answer 2

我相信你可以使用HttpModule来做到这一点。

http://msdn.microsoft.com/en-us/library/aa719858%28VS.71%29.aspx

http://www.netfxharmonics.com/2007/08/Real-World-HttpModule-Examples.aspx
新链接地址： http://www.netfxharmonics.com/n/2007/08/real-world-httpmodule-examples

http://www.15seconds.com/Issue/020417.htm

MVC最后一次机会在呈现给用户之前更改响应

2 个答案: