Spring Retryable注释ClassNotFoundException

Question

我想使用@Retryable注释restTemplate.我已经添加:

<dependency>
       <groupId>org.springframework.retry</groupId>
       <artifactId>spring-retry</artifactId>
       <version>1.2.1.RELEASE</version>
</dependency>

以及@EnableRetry配置类.我标记了方法:

restTemplate.exchange(url, HttpMethod.POST, request, String.class);

用(在一个新的主题中)

@Retryable(maxAttempts=4,value=Exception.class,backoff=@Backoff(delay = 2000))

但我从catalina得到错误:

27-Oct-2017 18:11:41.023 SEVERE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]
 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around
    at 
<ommitted>
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:154)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1103)
    ... 61 more
Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around
    at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.<clinit>(ReflectiveAspectJAdvisorFactory.java:76)
    at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.<init>(AnnotationAwareAspectJAutoProxyCreator.java:53)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
    ... 63 more
Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Around
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
    ... 70 more

27-Oct-2017 18:11:41.038 INFO [http-nio-8080-exec-1] org.apache.catalina.core.ApplicationContext.log Closing Spring root WebApplicationContext

我做错了什么？

编辑: 我向前移动了一点.发现Spring Retry使用了AOP,所以我补充说:

<dependency>
  <groupid>org.springframework</groupid>
  <artifactid>spring-aop</artifactid>
  <version>4.2.5.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.aspectj</groupId>
  <artifactId>aspectjweaver</artifactId>
  <version>1.8.8</version>
</dependency>

现在我得到了不同的错误:

27-Oct-2017 21:11:12.071 SEVERE [http-nio-8088-exec-5] org.springframework.web.servlet.DispatcherServlet.initServletBean Context initialization failed
 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'homeController' defined in file [(...)\HomeController.class]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class org.springframework.aop.framework.ObjenesisCglibAopProxy
    <ommitted>
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.springframework.aop.framework.ObjenesisCglibAopProxy
    at org.springframework.aop.framework.DefaultAopProxyFactory.createAopProxy(DefaultAopProxyFactory.java:60)
    at org.springframework.aop.framework.ProxyCreatorSupport.createAopProxy(ProxyCreatorSupport.java:105)
    at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:109)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:468)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:349)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:298)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:421)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    ... 35 more

为了隔离问题,我创建了一个小springMVC项目,它是一样的.为了保持简单,只使用少数依赖项.这是从mvn dependency:tree以下输出:

[INFO] com.example:store:war:0.0.1-SNAPSHOT
[INFO] +- org.springframework:spring-webmvc:jar:4.0.3.RELEASE:compile
[INFO] |  +- org.springframework:spring-beans:jar:4.0.3.RELEASE:compile
[INFO] |  +- org.springframework:spring-context:jar:4.0.3.RELEASE:compile
[INFO] |  +- org.springframework:spring-core:jar:4.0.3.RELEASE:compile
[INFO] |  |  \- commons-logging:commons-logging:jar:1.1.3:compile
[INFO] |  +- org.springframework:spring-expression:jar:4.0.3.RELEASE:compile
[INFO] |  \- org.springframework:spring-web:jar:4.0.3.RELEASE:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- javax.servlet:javax.servlet-api:jar:3.1.0:provided
[INFO] +- org.springframework.retry:spring-retry:jar:1.2.1.RELEASE:compile
[INFO] +- com.mashape.unirest:unirest-java:jar:1.4.9:compile
[INFO] |  +- org.apache.httpcomponents:httpasyncclient:jar:4.1.1:compile
[INFO] |  |  +- org.apache.httpcomponents:httpcore:jar:4.4.4:compile
[INFO] |  |  \- org.apache.httpcomponents:httpcore-nio:jar:4.4.4:compile
[INFO] |  +- org.apache.httpcomponents:httpmime:jar:4.5.2:compile
[INFO] |  \- org.json:json:jar:20160212:compile
[INFO] +- org.springframework:spring-aop:jar:4.2.5.RELEASE:compile
[INFO] |  \- aopalliance:aopalliance:jar:1.0:compile
[INFO] \- org.aspectj:aspectjweaver:jar:1.8.8:compile

Answer 1

添加spring-boot-starter-aop依赖项后,它对我有用,如下所示:

compile ("org.springframework.boot:spring-boot-starter-aop:1.5.10.RELEASE")

Answer 2

我会回答我自己的问题,因为它现在似乎在起作用.所有必需的依赖项:

<dependency>
    <groupId>org.springframework.retry</groupId>
    <artifactId>spring-retry</artifactId>
    <version>1.2.1.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>4.3.11.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.8.10</version>
</dependency>

检查是否没有重复的依赖关系(fe by mvn dependency:tree,<exclusions>必要时使用).一定要用你的配置类装饰@EnableRetry.出于某种原因,您需要将调用者与方法本身分开.Fethis:

@Retryable(maxAttempts = 4, value = {ResourceAccessException.class}, backoff = @Backoff(delay = 5000))
public ResponseEntity<String> tryToSendAndReturnResponseByRestTemplate(final RestTemplate restTemplate,
                                                                       final HttpEntity<MyObjDTO>
                                                                               request) {

    return restTemplate.exchange(resolveUrl(ENDPOINT_ADDRESS), HttpMethod.POST, request, String.class);
}

进入SenderManager标记为fe的课程,@Service并在不同的课堂上PhoneDirector打电话:

senderManager.tryToSendAndReturnResponseByRestTemplate(restTemplate, request);

它应该工作.(如果您需要指定应该返回的内容,如果之后4(仅此处)尝试您仍然获得异常,则可以创建SenderManager标记为的另一个方法(在类中)@Recover,如下所示:

@Recover
public ResponseEntity<String> recoverWhenSendingMessageFailed(final ResourceAccessException e) {
    return new ResponseEntity<>(e.getMessage(), HttpStatus.REQUEST_TIMEOUT);
} 

但是如果你需要args @Retryable(在@Recover方法中)记住,参数是从失败方法的参数列表中以与失败方法相同的顺序填充的,并且具有相同的返回类型