java反射之获取所有方法及其注解（包括实现的接口上的注解），获取各种标识符备忘

java反射之获取类或接口上的所有方法及其注解（包括实现的接口上的注解）

    /**
     * 获取类或接口上的所有方法及方法上的注解（包括方法实现上的注解以及接口上的注解），最完整的工具类，没有现成的工具类
     * 
     * @param clz
     * @param clzFilter
     *            仅返回具有指定类注解的类或接口中的方法，默认不过滤
     * @param methodFilter
     *            仅返回具有指定方法注解的方法，默认不过滤。 一般使用类或方法即可，没有必要同时两者
     * @param includeObject
     *            是否包括Object上定义的方法，默认false
     * @param println
     *            是否打印，默认不打印
     * @return
     */
    public static Map<Method, Set<String>> getMethodsAndAnnotations(Class clz, Set<Annotation> clzFilter,
            Set<Annotation> methodFilter, boolean includeObject, boolean println) {
        Map<Method, Set<String>> result = new ConcurrentHashMap<Method, Set<String>>();
        Method[] methods = null; 
        if (includeObject) {
            methods = clz.getMethods();
        } else {
            methods = clz.getDeclaredMethods();
        }
        
        for (Method method : methods) {
            Annotation[] annotations = method.getAnnotations();
            result.putIfAbsent(method, new HashSet<>());
            for (Annotation annotation : annotations) {
                result.get(method).add(annotation.annotationType().getCanonicalName());                    
            }
        }
        
        Class[] interfaces = clz.getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            for (Method method : interfaces[i].getDeclaredMethods()) {
                Annotation[] annotations = method.getAnnotations();
                result.putIfAbsent(method, new HashSet<>());
                for (Annotation annotation : annotations) {
                    result.get(method).add(annotation.annotationType().getCanonicalName());                    
                }
            }
        }
        
        if (println) {
            System.out.println("=============");
            for (Entry<Method, Set<String>> method : result.entrySet()) {
                System.out.print(method.getKey().toString() + ":[");
                for (String annotation : method.getValue()) {
                    System.out.print("" + annotation);
                }
                System.out.println("]");
            }
            System.out.println("=============");
        }
        return result;
    }
    
    public static Map<String, Set<String>> getMethodNameAndAnnotationName(Class clz, Set<Annotation> clzFilter,
            Set<Annotation> methodFilter, boolean includeObject, boolean println) {
        Map<String, Set<String>> result = new HashMap<>();
        Map<Method, Set<String>> tMap = getMethodsAndAnnotations(clz, clzFilter, methodFilter, includeObject, println);
        for (Entry<Method, Set<String>> method : tMap.entrySet()) {
            result.putIfAbsent(method.getKey().getName(),method.getValue());
            result.get(method.getKey().getName()).addAll(method.getValue());
        }
        return result;
    }

    /**
     * 判断某个类的某个方法上是否具有某个注解
     * @param clz
     * @param method
     * @param class1
     * @return
     */
    public static boolean methodHasAnnotation(Class clz, Method method,Class anno) {
        return getMethodNameAndAnnotationName(clz, null, null, false, false).get(method.getName()).contains(anno.getName());
    }

    public static void main(String[] args) {
        TaMethodUtil.getMethodsAndAnnotations(BonusAuditResultServiceImpl.class,null,null,false,true);
//        TaMethodUtil.getMethodsAndAnnotations(BonusAuditResultService.class,null,null,false,true);
    }

-- 类定义
public class BonusAuditResultServiceImpl extends BusinessService implements BonusAuditResultService, InitializingBean {

    @Transactional
    @Override
    public ResultModel<Integer> delete(TaBaseParameter<String> param) {
        DBContextHolder.setTargetDataSource("default");
        AgencyInfo agencyInfo = new AgencyInfo();
                ...
        }
}
-- 接口定义
public interface BonusAuditResultService {
    /**
     *     查询分红明细稽核结果
     * 
     * @param dto
     * @return
     */
    @CloudFunction(desc = "查询分红明细稽核结果")
    public ResultModel<List<BonusAuditResult>> queryBonusAuditResult(BonusAuditResultQueryDto dto);

    @CloudFunction(desc = "XA事务插入")
    ResultModel<Integer> insert(TaBaseParameter<AgencyInfo> param);
}

测试结果输出：

=============
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertNonXATrans():[org.springframework.transaction.annotation.Transactional]
public void auditresult.service.BonusAuditResultServiceImpl.afterPropertiesSet() throws java.lang.Exception:[]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertNShard():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryCrossShardWithBroadcast():[org.springframework.transaction.annotation.Transactional]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertOneShard():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertNonXATrans():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryCrossShardWithBroadcast():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertNShard():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertOneShard():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertNonXAAutoTrans():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryByHint():[org.springframework.transaction.annotation.Transactional]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertNonXAAutoTrans():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryByHint():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryAllShardAggr():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertMultiDSWithNShard():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertMultiDSWithNShardButOneFailed():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryOneShard():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryAllShardAggr():[org.springframework.transaction.annotation.Transactional]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertMultiDSWithNShard():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryOneShard():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertMultiDSWithNShardButOneFailed():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertAuto():[org.springframework.transaction.annotation.Transactional]
public abstract ResultModel auditresult.api.BonusAuditResultService.delete(TaBaseParameter):[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryAllShard():[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.queryBonusAuditResult(auditresult.dto.BonusAuditResultQueryDto):[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insertNonXAABBATrans():[]
public abstract ResultModel auditresult.api.BonusAuditResultService.update(TaBaseParameter):[common.annotation.CloudFunction]
public abstract ResultModel auditresult.api.BonusAuditResultService.insert(TaBaseParameter):[common.annotation.CloudFunction]
public abstract void org.springframework.beans.factory.InitializingBean.afterPropertiesSet() throws java.lang.Exception:[]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertAuto():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryBonusAuditResult(auditresult.dto.BonusAuditResultQueryDto):[]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.queryAllShard():[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.delete(TaBaseParameter):[org.springframework.transaction.annotation.Transactional]
public static void auditresult.service.BonusAuditResultServiceImpl.main(java.lang.String[]):[]
public abstract ResultModel auditresult.api.BonusAuditResultService.insertNonXAABBATrans():[common.annotation.CloudFunction]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.update(TaBaseParameter):[org.springframework.transaction.annotation.Transactional]
public ResultModel auditresult.service.BonusAuditResultServiceImpl.insert(TaBaseParameter):[org.springframework.transaction.annotation.Transactional]
=============

 

method.toString（FQN，全名）和method.getName（短名称）

------------method.getName--------------
run
wait
wait
wait
equals
toString
hashCode
getClass
notify
notifyAll

------------method.toString--------------
public void com.westward.Car.run()
public final native void java.lang.Object.wait(long) throws java.lang.InterruptedException
public final void java.lang.Object.wait() throws java.lang.InterruptedException
public final void java.lang.Object.wait(long,int) throws java.lang.InterruptedException
public boolean java.lang.Object.equals(java.lang.Object)
public java.lang.String java.lang.Object.toString()