springboot整合mybatis遇到无法扫描MaperScan包的问题

Posted 2021-01-14 wwmiert

1.启动类加上@MaperScan注解后，一直报错如下：

Error creating bean with name ‘platUserMapper‘ defined in file [D:workspaceeclipse_datavivo argetclasses estinterfdomainmapperPlatUserMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property ‘sqlSessionFactory‘ or ‘sqlSessionTemplate‘ are required

原因是pom.xml没有引入如下依赖，因为从SqlSessionDaoSupport 这个类的源码中可以看出，原因是mybatis-spring-1.2.0中取消了自动注入SqlSessionFactory 和 SqlSessionTemplate

<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.0</version>
</dependency>

2.引入如上依赖包后，再次报错，报错如下：

Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method ‘sqlSessionFactory‘ threw exception; nested exception is java.lang.NoSuchMethodError: org.apache.ibatis.session.Configuration.setVfsImpl(Ljava/lang/Class;)V

查看源码发现该类中不存在set方法 ，升级mybatis版本如下：

<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.4</version>
</dependency>

仍然报错：Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method ‘sqlSessionFactory‘ threw exception; nested exception is java.lang.NoSuchMethodError: org.mybatis.spring.SqlSessionFactoryBean.setVfs(Ljava/lang/Class;)V

升级mybatis-spring：

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

更新pom后重新启动，可正常启动。