Question

我需要能够暂时禁用单个请求的捆绑和缩小，以便调试JavaScript＆amp; CSS问题。我想在运行时通过向QueryString添加一个参数来实现这一点，如此...

http://domain.com/page?DisableOptimizations=true

这是我正在考虑的方法。

protected void Application_BeginRequest(object sender, EventArgs e)
{
  // Enable for every request
  BundleTable.EnableOptimizations = true;

  // Disable for requests that explicitly request it
  bool disable;
  bool.TryParse(Context.Request.QueryString["DisableOptimizations"], out disable);
  if (disable)
  {
    BundleTable.EnableOptimizations = false;
  }
}

我是否在每个网络请求中设置此静态属性这一事实是否存在潜在问题？（Web应用程序将在Web场上运行）
有更好的方法来解决这个问题吗？

Answer 1

扩展我在评论中提到的内容：

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class OptimizationsDebuggingAttribute : ActionFilterAttribute
{
    private const String PARAM_NAME = "DisableOptimizations";
    private const String COOKIE_NAME = "MySite.DisableOptimizations";

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        Boolean parsedPref;
        Boolean optimizationsDisabled = false;

        if (filterContext.HttpContext.Request.QueryString[PARAM_NAME] != null)
        { // incoming change request
            var pref = filterContext.HttpContext.Request.QueryString[PARAM_NAME].ToString();
            if (Boolean.TryParse(pref, out parsedPref))
            {
                optimizationsDisabled = parsedPref;
            }
        }
        else
        { // use existing settings
            var cookie = filterContext.HttpContext.Request.Cookies[COOKIE_NAME];
            if (cookie != null && Boolean.TryParse(cookie.Value, out parsedPref))
            {
                optimizationsDisabled = parsedPref;
            }
        }

        // make the change
        System.Web.Optimization.BundleTable.EnableOptimizations = !optimizationsDisabled;

        // save for future requests
        HttpCookie savedPref = new HttpCookie(COOKIE_NAME, optimizationsDisabled.ToString())
        {
            Expires = DateTime.Now.AddDays(1)
        };
        filterContext.HttpContext.Response.SetCookie(savedPref);

        base.OnActionExecuting(filterContext);
    }
}

然后当然实现它看起来像：

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
    filters.Add(new HandleErrorAttribute());
    filters.Add(new OptimizationsDebuggingAttribute());
}

或者，如果您更喜欢实践方法：

[OptimizationsDebugging]
public ActionResult TroublesomeAction()
{
    return View();
}

如何在运行时暂时禁用捆绑和缩小？

1 个答案: