我在java反射中找不到太多关于ConfigurationBuilder、FilterBuilder、Scanners的文档。有人可以解释一下有什么用例吗？
最佳答案
您似乎在谈论 Java 中的类 Reflections library ，并且不是标准java.lang.reflect代码。
为了简单起见，所有三个类都用于配置 Reflections 对象，该对象将解析您的源代码并允许您查询它。
正如 GitHub 页面所述，有一些 Javadoc :
如果你看一眼ConfigurationBuilder javadoc，出现了一种模式(我自由地添加了一些注释以使事情变得 Shiny ):
new Reflections(
/*
* ConfigurationBuilder is used to build a configuration parsable by Reflection.
* This configuration must include a few things :
* - where to look for classes
* - what to look in classes
*/
new ConfigurationBuilder()
/*
* FilterBuilder answers the *where* question by specifying which fragments
* of classpath are to be scanned. Indeed, as far as I understand,
* Reflections can parse the whole classpath, which will be way to slow
* for anybody (and contains lots of useless java.* classes). So your
FilterBuilder defines include patterns for the packages you need
*/
.filterInputsBy(new FilterBuilder().include("your project's common package prefix here..."))
.setUrls(ClasspathHelper.forClassLoader())
/*
* Scanner defines the what : if you look for subclasses, you'll need
* to add a subclass scanner. if you look for
* annotations, the type annotation scanner is required, and so on.
*/
.setScanners(new SubTypesScanner(), new TypeAnnotationsScanner().filterResultsBy(myClassAnnotationsFilter)));
我想反射作者确实可以稍微改进他们的文档......
关于java - java反射中的ConfigurationBuilder、FilterBuilder、Scanners，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25384594/