background:4月5号中午，终于学完了SpringBoot的基本路线！休息几个小时，趁机会把SpringBoot的踩坑出坑记录一下
ps: Great God do not spray
error:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'articleServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.xx.blog.mapper.ArticleMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
Error scenarios: Use mybatisPlus code generator generates code database reverse. Lead to code error
solution:
| Add annotations generated on an interface mapper @Mapper or add annotations based on the starting @MapperScan ( "mapper package name") |
or
recommend:
Recommended to add annotations on the startup class SpringBoot of @MapperScan ( "mapper package name") once and for all otherwise need to add annotations @Mapper on all interfaces mapper
error:
Description:
A component required a bean of type 'com.xx.blog.mapper.ArticleMapper' that could not be found.
Action:
Consider defining a bean of type 'com.xx.blog.mapper.ArticleMapper' in your configuration.
Process finished with exit code 0
Error scenario: Error after error appeared to solve the above, the components need not find "com.xx.blog.mapper.ArticleMapper" type of bean.
solution:
| Add annotations in the entity classes generated by the mapper @Repository will Mapper to Spring Management |
error:
java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml
Error scenario: application.yml is a pit, if the above situation, the general is application.yml this file has a syntax error.
solution:
| Notes error cause (application.yml uses # instead of // comments, and # must be followed by a space) Indent using spaces, do not use tab Each colon behind must have a space otherwise it will error |