Java @缺少HystrixCollapser批量方法

我只是想做一个关于Hystrix的折叠器的演示，但为什么我会有这样的例外呢

Caused by: java.lang.IllegalStateException: batch method is absent: getUserByIds

我只是使用@HystrixCollapser注释来测试我的代码，但我无法成功地获得它。 代码如下所示：

  @Override
    @CacheResult(cacheKeyMethod = "getCacheKey")
    @HystrixCommand(fallbackMethod = "getDefaultUser", commandKey = "getUserCache")
    public CommonResult getUserCache(Long id) {
        LOGGER.info("getUserCache id:{}", id);
        return restTemplate.getForObject(userServiceUrl + "/user/{1}", CommonResult.class, id);
    }

    @Override
    @HystrixCollapser(batchMethod = "getUserByIds", collapserProperties = {
            @HystrixProperty(name = "timerDelayInMilliseconds", value = "100")})
    public Future<User> getUserFuture(Long id) {
        return new AsyncResult<User>() {
            @Override
            public User invoke() {
                CommonResult commonResult = restTemplate.getForObject(userServiceUrl + "/user/{1}", CommonResult.class,id);
                Map data = (Map) commonResult.getData();
                User user = BeanUtil.mapToBean(data, User.class, true);
                LOGGER.info("getUserByIds username{}", user.getUsername());
                return user;
            }
        };
    }

@覆盖
@CacheResult（cacheKeyMethod=“getCacheKey”）
@HystrixCommand（fallbackMethod=“getDefaultUser”，commandKey=“getUserCache”）
公共CommonResult getUserCache（长id）{
info（“getUserCache id:{}”，id）；
返回restemplate.getForObject（userServiceUrl+“/user/{1}”，CommonResult.class，id）；
}
@凌驾
@HystrixCollapser（batchMethod=“getUserByIds”，collapserProperties={
@HystrixProperty（name=“timerdelayinmillizes”，value=“100”）}
公共未来getUserFuture（长id）{
返回新的AsyncResult（）{
@凌驾
公共用户调用（）{
CommonResult CommonResult=restTemplate.getForObject（userServiceUrl+“/user/{1}”，CommonResult.class，id）；
映射数据=（映射）commonResult.getData（）；
User User=BeanUtil.mapToBean（数据，User.class，true）；
info（“getUserByIds username{}”，user.getUsername（））；
返回用户；
}
};
}

我得到：

Caused by: java.lang.IllegalStateException: batch method is absent: getUserByIds
    at com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect$CollapserMetaHolderFactory.create(HystrixCommandAspect.java:194) ~[hystrix-javanica-1.5.18.jar:1.5.18]
    at com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect$MetaHolderFactory.create(HystrixCommandAspect.java:166) ~[hystrix-javanica-1.5.18.jar:1.5.18]
    at com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect.methodsAnnotatedWithHystrixCommand(HystrixCommandAspect.java:93) ~[hystrix-javanica-1.5.18.jar:1.5.18]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231]
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at com.changsheng.hystrix.service.UserServiceImpl$$EnhancerBySpringCGLIB$$306294d2.getUserFuture(<generated>) ~[classes/:na]
    at com.changsheng.hystrix.controller.UserHystrixController.testCollapser(UserHystrixController.java:50) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    ... 40 common frames omitted

原因：java.lang.IllegalStateException:缺少批处理方法：GetUserById
在com.netflix.hystrix.contrib.javanica.aop.aspectj.hystrixcommandspect$CollapserMetaHolderFactory.create（hystrixcommandspect.java:194）~[hystrix-javanica-1.5.18.jar:1.5.18]
在com.netflix.hystrix.contrib.javanica.aop.aspectj.hystrixcommandspect$MetaHolderFactory.create（hystrixcommandspect.java:166）~[hystrix-javanica-1.5.18.jar:1.5.18]
在com.netflix.hystrix.contrib.javanica.aop.aspectj.hystrixcommandspect.methodsannotated with hystrixcommand（hystrixcommandspect.java:93）~[hystrix-javanica-1.5.18.jar:1.5.18]
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）~[na:1.8.0\u 231]
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）~[na:1.8.0\u 231]
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）~[na:1.8.0\u 231]
在java.lang.reflect.Method.invoke（Method.java:498）~[na:1.8.0\u 231]
在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs（AbstractAspectJAdvice.java:644）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod（AbstractAspectJAdvice.java:633）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.aspectj.AspectJAroundAdvice.invoke（AspectJAroundAdvice.java:70）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:175）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.procedue（CglibAopProxy.java:749）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:95）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:186）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.procedue（CglibAopProxy.java:749）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:691）~[spring-aop-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在com.hangsheng.hystrix.service.UserServiceImpl$$EnhancerBySpringCGLIB$$306294d2.getUserFuture（）~[classes/:na]
在com.hangsheng.hystrix.controller.UserHystrixController.testCollapser（UserHystrixController.java:50）~[classes/:na]
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）~[na:1.8.0\u 231]
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）~[na:1.8.0\u 231]
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）~[na:1.8.0\u 231]
在java.lang.reflect.Method.invoke（Method.java:498）~[na:1.8.0\u 231]
在org.springframework.web.method.support.InvocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:190）~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:138）~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.mvc.method.annotation.ServletinInvocableHandlerMethod.invokeAndHandle（ServletinInvocableHandlerMethod.java:105）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:878）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（RequestMappingHandlerAdapter.java:792）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:87）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:1040）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:943）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
在org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:1006）~[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]
... 省略40个公共帧

有人能帮我吗