SpringBoot 启动报错，EnableConfigurationProperties 注解跳坑记

使用SpringBoot 脚手架搭建的一个简单的 web demo ，开启了属性自动注入，配置文件如下：

@Setter
@Getter
@Configuration
@ConfigurationProperties(prefix = "com.ff")
@EnableConfigurationProperties(FFProperties.class)
public class FFProperties {private String database;
}@Component
public class LocalDataBase {private final FFProperties properties;public LocalDataBase(FFProperties properties) {this.properties = properties;}
}

启动服务失败，根据错误信息很明显可以判断出是Spring容器有两个实例，不知道要注入哪个


***************************
APPLICATION FAILED TO START
***************************Description:Parameter 0 of constructor in com.hoperun.database.LocalDataBase required a single bean, but 2 were found:- ffProperties: defined in file [D:\workspace\demo\target\classes\com\ff\properties\FFProperties.class]- com.ff-com.ff.properties.FFProperties: defined in nullAction:Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumedProcess finished with exit code 0

这里配置有个坑，需要注意下，如果注解在配置类的头上，则不要再写上类本身了, 按下面的修改，即可正常运行了

@Setter
@Getter
@Configuration
@ConfigurationProperties(prefix = "com.ff")
@EnableConfigurationProperties
public class FFProperties {private String database;
}