IDEA启动Springboot报错问题

1.😡 No MyBatis mapper was found in '[com.markhub.service]' package. Please check your configuration.

谷歌翻译一下😀：在“[com.markhub.service]”包中未找到 MyBatis 映射器。 请检查您的配置。

解决：找到项目下的SpringBootApplication在后面加上(exclude={DataSourceAutoConfiguration.class，HibernateJpaAutoConfiguration.class})

• exclude，排除此类的AutoConfig，即禁止 SpringBoot 自动注入数据源配置。
• DataSourceAutoConfiguration.class 会自动查找 application.yml 或者 properties 文件里的 spring.datasource.* 相关属性并自动配置单数据源。

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2.😡 Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-07-03 14:25:52.570 ERROR 11364 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed

这个问题在网上看了很多博客，每个大牛的解决方法都不一样。

接着往下看控制台打印的日志

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.markhub.mapper.BlogMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

产生问题的原因在于，没有配置mapper层的扫描，解决办法如下：

加上扫描路径就好了

@SpringBootApplication(exclude={DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class},scanBasePackages = "com.markhub.mapper") 
public class VueblogApplication {

    public static void main(String[] args) {
        SpringApplication.run(VueblogApplication.class, args);
    }

}

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3.🤗 运行查看