springboot 整合 mybatis 报错: Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException

最新推荐文章于 2025-06-05 09:26:25 发布

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最新推荐文章于 2025-06-05 09:26:25 发布

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本文解决了Spring Boot项目中整合MyBatis时出现的找不到UserMapper接口实例的问题，通过检查配置、添加@MapperScan注解及确认依赖版本等方式，帮助开发者顺利搭建起Spring Boot与MyBatis的开发环境。

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报错如下:

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.****.mybatis.springboot.mapper.UserMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1493) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    ... 29 common frames omitted

解决方法:

在启动类中加入dao层mapper接口文件扫描注解

@MapperScan("mapper接口文件包路径");

遇到这种首先各个路径是否配置正确:

例如xml中的

以及扫描配置:

最后检查jar包是否正确:

        <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis</artifactId>
           <version>3.4.4</version>
       </dependency>
       <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis-spring</artifactId>
           <version>1.3.1</version>
       </dependency>