AnnotationUtils

Posted 2020-07-21 user_孙

 1 /**
 2      * 查询类中符合指定annotation的属性信息
 3      * @param objCls 实体类
 4      * @param annCls 注解类
 5      * @return HashMap<实体属性名, Annontation>
 6      */
 7     public static <T extends Annotation> HashMap<String, T> getFieldAnnotationsMsg(final Class<?> objCls,final Class<T> annCls){
 8         HashMap<String, T> ht=new HashMap<String, T>();
 9         for (Class<?> superClass = objCls; superClass != Object.class; superClass = superClass.getSuperclass()) {
10             Field[] fs = superClass.getDeclaredFields();
11             for (Field f : fs) {
12                 if(f.isAnnotationPresent(annCls)){
13                     ht.put(f.getName(),f.getAnnotation(annCls));
14                 }
15             }
16         }
17         return ht;
18     }