No qualifying bean of type 'XXXXX' available

简介: 该文档描述了Spring框架中`org.springframework.beans.factory.NoSuchBeanDefinitionException`异常的处理方法,该异常是因为无法找到类型为`com.weblog.auth.mapper.UserMapper`的bean导致。解决办法包括在对应的Mapper上添加`@Mapper`注解,并在启动类上添加`@MapperScan`注解以扫描包含Mapper接口的文件夹。
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'baseMapper': No qualifying bean of type 'com.weblog.auth.mapper.UserMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

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

错误:org.springframework.beans.factory.NoSuchBeanDefinitionException。没有在factory找到已经定义的bean

解释:No qualifying bean of type 'XXXX' available。具体是哪一个没有找到,根据com.weblog.auth.mapper.UserMapper找到提示的包

引起原因:在使用自动注入的时候,没有找到对应的bean

image.png

解决方案:

  1. 在对应的Mapper上添加@Mapper注解

image.png

  1. 在启动类上添加@MapperScan注解,指定到mapper所在的文件夹(推荐)

image.png



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