A bean with that name has already been defined in file [xxx] and overriding is disabled.

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APPLICATION FAILED TO START
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Description:

The bean 'xxx', defined in class path resource [xxx.class], could not be registered. A bean with that name has already been defined in file [xxx.class] and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

public class A { // 类名 和 Bean名重复

    @Bean(name = "a") // 类名 和 Bean名重复
    public void test() {
    }
}

public class A { 

    @Bean(name = "aa") // 不重名即可
    public void test() {
    }
}