springboot启动问题html
1.@Autowired报错Could not autowire. No beans of xxxjava
解决:只需在DAO接口加上@Component 或者 @Repositoryspring
参考:https://blog.csdn.net/Mr_EvanChen/article/details/84035445数据库
2.Consider defining a bean of type ‘XXX’ in your configuration.浏览器
解决:在启动类上加上@MapperScan或者@ComponentScan注解,手动指定application类要扫描哪些包下的注解,以下所示: springboot
@SpringBootApplication @ComponentScan(basePackages = {"com.xxx.xxx.dao"})
参考:https://www.cnblogs.com/nananana/p/9333917.htmlmybatis
https://blog.csdn.net/suxiexingchen/article/details/84984349app
3.Failed to configure a DataSource: 'url' attribute is not specified and no embeddide
问题:应用中没有配置datasource的一些相关属性,例如:地址值啊,数据库驱动啊,用户名啊,密码啊url
解决:application.properties文件中加spring.datasource相关配置
参考:https://blog.csdn.net/qq_40223688/article/details/88191732
4.org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException
问题:以前生成了引发异常的队列,一启动就报错
解决:浏览器打开http://192.168.0.100:15672/#/把以前相关的队列删除,再次启动不报错了
参考:https://www.cnblogs.com/javawxid/p/10855071.html
springboot运行中问题
1.mybatis-plus驼峰下划线转换问题
设置不用其下划线命名法,在MybatisPlusConfig.java中设置
MybatisSqlSessionFactoryBean mybatisPlus = new MybatisSqlSessionFactoryBean(); mybatisPlus.setDbColumnUnderline(true);
也能够在application.yml配置
mybatis-plus: global-config: #驼峰下划线转换 db-column-underline: true