Reflections的使用
knight2023-09-04 17:10java/libraryjava
仓库地址
reflections: https://github.com/ronmamo/reflections
<dependency> <groupId>org.reflections</groupId> <artifactId>reflections</artifactId> </dependency>
如何扫描指定包下包含指定注解的类？
假设扫描@Mapper
Reflections reflections = new Reflections(
new ConfigurationBuilder().setParallel(true).forPackages("packageName")
.setScanners(Scanners.TypesAnnotated));
Set<Class<?>> classes = reflections.getTypesAnnotatedWith(Mapper.class);
如何扫描指定包下包含指定注解的方法？
假设扫描@Transaction
Reflections reflections = new Reflections(
new ConfigurationBuilder().setParallel(true).forPackages("packageName")
.setScanners(Scanners.MethodsAnnotated));
Set<Method> methods = reflections.getMethodsAnnotatedWith(Transaction.class);
如何扫描指定包下继承/实现某个类的子类？
假设扫描
ServiceImpl子类
Reflections reflections = new Reflections(
new ConfigurationBuilder().setParallel(true).forPackages("packageName")
.setScanners(Scanners.SubTypes));
Set<Class<? extends ServiceImpl>> classes = reflections.getSubTypesOf(ServiceImpl.class);