SpringCloud踩坑
本文内容纲要：
-版本说明
-情景复现
-问题分析
-解决方法
今天在使用SpringCloud时遇到了一个问题，感觉有不少小伙伴会遇到，所以记录下来
版本说明
SpringBoot 2.2.4.RELEASE
SpringCloud Greenwich.SR1
情景复现
在pom.xml中加入如下依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
启动项目后报错Thefollowingmethoddidnotexist:org.springframework.boot.actuate.health.CompositeHealthIndicator
***************************
APPLICATIONFAILEDTOSTART
***************************
Description:
Anattemptwasmadetocallamethodthatdoesnotexist.Theattemptwasmadefromthefollowinglocation:
org.springframework.cloud.client.discovery.health.DiscoveryCompositeHealthIndicator.<init>(DiscoveryCompositeHealthIndicator.java:42)
Thefollowingmethoddidnotexist:
org.springframework.boot.actuate.health.CompositeHealthIndicator.<init>(Lorg/springframework/boot/actuate/health/HealthAggregator;)V
Themethod'sclass,org.springframework.boot.actuate.health.CompositeHealthIndicator,isavailablefromthefollowinglocations:
jar:file:/Volumes/Others/MVNrepository/org/springframework/boot/spring-boot-actuator/2.2.4.RELEASE/spring-boot-actuator-2.2.4.RELEASE.jar!/org/springframework/boot/actuate/health/CompositeHealthIndicator.class
Itwasloadedfromthefollowinglocation:
file:/Volumes/Others/MVNrepository/org/springframework/boot/spring-boot-actuator/2.2.4.RELEASE/spring-boot-actuator-2.2.4.RELEASE.jar
Action:
Correcttheclasspathofyourapplicationsothatitcontainsasingle,compatibleversionoforg.springframework.boot.actuate.health.CompositeHealthIndicator
问题分析
问题所在就是——版本冲突
我使用的SpringBoot版本是2.2.4，而SpringCloud版本是Greenwich，二者的兼容还是有一定问题的，所以在启动时会报错：在spring-boot-actuator-2.2.4.RELEASE.jar下找不到CompositeHealthIndicator.class
解决方法
解决方法有如下两种，我都已经测试过，这两种方法都可以解决问题
- 降级SpringBoot
把SpringBoot从2.2.4.RELEASE降级成2.1.4.RELEASE - 升级SpringCloud
把SpringCloud从Greenwich.SR1升级成Hoxton.SR1
按如上所示即可成功解决问题，小伙伴们赶紧去试一下吧~
本文内容总结：版本说明，情景复现，问题分析，解决方法，
原文链接：https://www.cnblogs.com/taiyii/p/12326603.html