Spring Boot 2.0整合Spring Cloud Finchley版本 @hystrixcommand注解找不到解决方案

问题描述：

笔者在使用Spring Boot 2.0整合Spring Cloud Finchley.RC2版本时，使用断路器 Hystrix时候发现@hystrixcommand注解找不到，由于Spring Boot 2.0刚出没多久，所以这块资料网上很少，查阅资料说是新版本中不包含此注解了，需要重新引入。

报错信息：

源码：

解决方案：pom.xml添加依赖

<dependency>
   <groupId>com.netflix.hystrix</groupId>
   <artifactId>hystrix-javanica</artifactId>
   <version>RELEASE</version>
</dependency>

完整pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>

   <groupId>com.serverribbon</groupId>
   <artifactId>serverribbon</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <packaging>jar</packaging>

   <name>serverribbon</name>
   <description>Demo project for Spring Boot</description>

   <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.0.2.RELEASE</version>
      <relativePath/> <!-- lookup parent from repository -->
   </parent>

   <properties>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
      <java.version>1.8</java.version>
      <spring-cloud.version>Finchley.RC2</spring-cloud.version>
   </properties>

   <dependencies>
      <dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
      </dependency>

      <dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-starter-ribbon</artifactId>
      </dependency>

      <dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-starter-hystrix</artifactId>
      </dependency>

      <dependency>
         <groupId>com.netflix.hystrix</groupId>
         <artifactId>hystrix-javanica</artifactId>
         <version>RELEASE</version>
      </dependency>

      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-test</artifactId>
         <scope>test</scope>
      </dependency>
      <dependency>
         <groupId>com.netflix.hystrix</groupId>
         <artifactId>hystrix-core</artifactId>
         <version>RELEASE</version>
      </dependency>
        <dependency>
            <groupId>com.netflix.hystrix</groupId>
            <artifactId>hystrix-core</artifactId>
            <version>RELEASE</version>
        </dependency>
    </dependencies>

   <dependencyManagement>
      <dependencies>
         <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
      </dependencies>
   </dependencyManagement>

   <build>
      <plugins>
         <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
         </plugin>
      </plugins>
   </build>

   <repositories>
      <repository>
         <id>spring-milestones</id>
         <name>Spring Milestones</name>
         <url>https://repo.spring.io/milestone</url>
         <snapshots>
            <enabled>false</enabled>
         </snapshots>
      </repository>
   </repositories>


</project>

在程序的启动类ServiceRibbonApplication 加@EnableHystrix注解开启Hystrix

推荐博客：

Spring cloud系列十使用@HystrixCommand使用Hystrix组件及@EnableCircuitBreaker原理介绍 https://blog.csdn.net/hry2015/article/details/78577695?utm_medium=referral

Spring Boot与Spring Cloud学习使用可参看笔者博客

① Spring Cloud入门教程之服务注册与发现Eureka

② Spring Cloud入门教程之服务消费者 Ribbon

③ Spring Cloud入门教程之服务消费者 Feign

④ Spring Cloud入门教程之断路器 Hystrix

⑤ Spring Cloud入门教程之断路由网关 Zuul

⑥ Spring Cloud入门教程之分布式配置中心 Spring Cloud Config

⑦ idea下新建Spring Boot项目并配置启动

⑧ Spring Boot无法自动注入bean问题解决方案

⑨ idea 设置Spring Boot热部署

Spring Boot 2.0整合Spring Cloud Finchley版本 @hystrixcommand注解找不到解决方案

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