环境：spring  boot：  1.3.7  spring  cloud ： Brixton.SR5

<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>1.3.7.RELEASE</version>

<relativePath /> <!-- lookup parent from repository -->

</parent>

 

<dependencyManagement>

<dependencies>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-dependencies</artifactId>

<version>Brixton.SR5</version>

<type>pom</type>

<scope>import</scope>

</dependency>

</dependencies>

</dependencyManagement>

 

添加

 

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-hystrix</artifactId>

</dependency>

 

添加注解 @SpringCloudApplication

添加  @HystrixCommand(fallbackMethod = "helloFallBack")

 

后，启动tomcat时报以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hystrixCommandAspect' defined in class path resource [org/springframework/cloud/netflix/hystrix/HystrixCircuitBreakerConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect]: Factory method 'hystrixCommandAspect' threw exception; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/JoinPoint

看来是jar包有问题了

最后试了n个依赖，最后只添加了下面这个依赖就好了

<dependency>

<groupId> org.aspectj</groupId>

<artifactId> aspectjweaver</artifactId>

<version> 1.6.11</version>

</dependency>