[英]Apache Sling Resource Resolver
What exactly is the ResourceResolver? ResourceResolver到底是什么? More important, how do you use it?
更重要的是,您如何使用它? I'm struggling to find a simple example.
我正在努力寻找一个简单的例子。 So, say I have a path and want to use the resource resolver to see if the path resolves to a resource.
因此,假设我有一条路径,并且想使用资源解析器查看该路径是否解析为资源。 How would I do that?
我该怎么做? I know this is wrong but if someone can correct this it would help.
我知道这是错误的,但是如果有人可以纠正它会有所帮助。
Iterator<String> nodeSample = getResource("title");
return nodeSample
The RequestResolver
, to quote the javadoc , defines the service API which may be used to resolve Resource
objects. 引用javadoc的
RequestResolver
定义了可用于解析Resource
对象的服务API。
You typically access it in a SlingServlet
by calling request.getResourceResolver()
or in a script ( JSP script for instance ) under the resourceResolver
variable. 通常,您可以通过在
SlingServlet
调用request.getResourceResolver()
或在resourceResolver
变量下的脚本(例如JSP脚本)中对其进行访问。 For more details on variables on scripts see Scripting variables in the Sling wiki . 有关脚本变量的更多详细信息,请参见Sling Wiki中的脚本变量 。
One you get a hold of it you can use it to access resources in the content tree: 您可以保留它,然后使用它来访问内容树中的资源:
Resource resource = requestResolver.getResource("/content/my/resource");
if ( resource != null ) // bingo!
To display a resource's properties I usually adapt it to a ValueMap
and then extract the properties 为了显示资源的属性,我通常将其调整为
ValueMap
,然后提取属性
ValueMap properties = resource.adaptTo(ValueMap.class);
String title = properties.get("jcr:title", String.class);
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