出现org.springframework.boot.SpringApplication:771 - Application startup failed 问题的解决

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#报错 #jar包冲突

本文记录了在使用IDEA启动Spring Boot项目时遇到的错误：因方法重名导致的启动失败问题。详细分析了错误原因，指出在@PostMapping注解下方法重名引发的异常，并提供了解决方案。

今天启动项目，idea用springb 启动的，出现了错误

ERROR 2019-01-26 15:33:46 [restartedMain] 

org.springframework.boot.SpringApplication:771 - Application startup failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean 

with name 'documentionPluginsBootstrapper' defined in URL [jar:file:/E:/maven-

repository/io/springfox/springfox-spring-web/2.7.0/springfox-spring-web-

2.7.0.jar!/springfox/documentation/spring/web/plugins/DocumentationPlunsBootstrapper

.class]: Unsatisfied dependency expressed through constructor parameter 1; nested 

exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error 

creating bean with name 'webMvRequeHandlerProvider' defined in URL 

[jar:file:/E:/maven-repository/io/springfox/springfox-spring-web/2.7.0/springfox-

spring-web-

2.7.0.jar!/springfox/documentation/spring/web/plugins/WebMvcuestHandlerProvider.cla

ss]: Unsatisfied dependency expressed through constructor parameter 0; nested 

exception is org.springframework.beans.factory.BeanCreationException: Error creating 

bean with name 'requestMingHandlerMapping' defined in class path resource 

[org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration

$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception 

is java.lang.IllegalStateException: Ambiguous mapping. Cannot map

网上说是jar包冲突，这样的话可以去maven配置查看是否有冲突的相等jar包，但是我这个我一想刚才还是可以启动的，我写了一个方法就报错了，全局搜索后发现原来是