PathMatchingResourcePatternResolver通过适配符寻找符合条件的java类

/**
 * 通过包名获取class
 *
 * @author starmaark
 * @version 2018年4月12日 下午5:55:18 
 */
public class ClassTools {
    private static final Logger log = LoggerFactory.getLogger(ClassTools.class);
    private static final String RESOURCE_PATTERN = "/**/*.class";
    public  static Set<Class<?>> findPathMatchingResources(String locationPattern)   {
        // 第一个class类的集合
        Set<Class<?>> classes = new LinkedHashSet<Class<?>>();
        try {
            String pattern = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX +
                    ClassUtils.convertClassNameToResourcePath(locationPattern) + RESOURCE_PATTERN;
            ResourcePatternResolver resourceLoader = new PathMatchingResourcePatternResolver();
            Resource[] source = resourceLoader.getResources(pattern);
            MetadataReaderFactory readerFactory = new CachingMetadataReaderFactory(resourceLoader);
            //System.out.println("length:" + source.length);
            for (Resource resource : source) {
                if (resource.isReadable()) {
                    MetadataReader reader = readerFactory.getMetadataReader(resource);
                    String className = reader.getClassMetadata().getClassName();
                    classes.add(Class.forName(className));
                }
            }
        }catch (Exception e){
            log.error("寻找符合条件的包失败",e);
        }
        return classes;
    }

}