SlingModels：从Resource改编后是否可以注入SlingHttpServletRequest？ [英] SlingModels: Can I inject the SlingHttpServletRequest when adapting from Resource?

问题描述

我是SlingModels的新手，并且注释还不太清楚。我目前正在尝试将一些基本基础组件从AEM 6.2转换为使用SlingModels。

I am new to SlingModels and the annotations aren't very clear yet. I am currently trying to transform some basic foundation components from AEM 6.2 to using SlingModels instead.

对于图像组件，基础JSP使用SlingHttpServletRequest设置ImageDoctype。因此，我尝试了以下操作：

For the image component the foundation JSP uses the SlingHttpServletRequest to set the ImageDoctype. So I tried the following:

@Model(adaptables = {Resource.class})
public class ImageModel {
    @SlingObject
    private SlingHttpServletRequest request;

    @SlingObject
    private Resource resource;
}

但与此同时，请求为空。所以我改用：

But with this the request is null. So I switched to using:

@Model(adaptables = {SlingHttpServletRequest.class})

现在为 reuqest 和资源

JSP代码：

<sling:adaptTo adaptable="${slingRequest}" adaptTo="models.ImageModel" var="m"/>

这样做是正确的方法还是有办法适应 resource 仍然可以注入 request ？

Is this the right way to do it or is there a way to adapt from the resource ans still be able to inject the request?

推荐答案

您不能这样做，因为资源不支持SlingHttpServletRequest。如果您的模型中需要Request，请使其适应Request。

You can not do that, because resource is not SlingHttpServletRequest aware. If you need Request in your model make it adaptable from Request.

有一些库可以做到这一点。它使用筛选器将当前请求存储在ThreadLocal中，然后从中读取它，但我不建议使用此方法。 ThreadLocal只是另一个全局变量。

There was some library which allowed to do that. It used Filter to store current Request in ThreadLocal and then read it from it, but I would not recommend this approach. ThreadLocal is just another global.

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