获取springboot中指定目录下 带有指定注解的类

 private List<String> getTableNameList(){
        List<String> list = new ArrayList<>();
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        //获取 包路径  classPath*: classpath*:com/lyc/**/*DO.class
        String pattern = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath("com.lyc") +"/**/*DO.class";
        try {
            Resource[] resources = resolver.getResources(pattern);
            CachingMetadataReaderFactory readerFactory = new CachingMetadataReaderFactory(resolver);
            for (Resource resource : resources){
                MetadataReader metadataReader = readerFactory.getMetadataReader(resource);
                // 扫描到的class
                String className = metadataReader.getClassMetadata().getClassName();
　　　　　　　　　　// 这边已经获取到类信息了，但是我这边需要的是注解里面的信息
                Class<?> clazz = Class.forName(className);
                TableName annotation = clazz.getAnnotation(TableName.class);
                if ( annotation != null){
                    list.add(annotation.value());
                }
            }
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
        return list;
    }

使用场景：获取TableName注解下面的所有表名

 

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