解决spring整合mybatis时错误 ‘org.mybatis.spring.mapper.MapperScannerConfigurer#0‘

Posted 2022-11-03 莉妮可丝的猫

警告:org.springframework.beans.factory.BeanCreationException:

Error creating bean with name ‘org.mybatis.spring.mapper.MapperScannerConfigurer#0’

defined in class path resource [spring.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/dao/support/DaoSupport
…（省略了一些错误）
Caused by: java.lang.ClassNotFoundException: org.springframework.dao.support.DaoSupport
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
… 91 more

Process finished with exit code -1

解决

1. 首先确保Spring配置文件application.xml（spring.xml）下的包扫描配置是否拼写错误

正确写法：

    <!--扫描mapper所在的包,为mapper创建实现类(若使用此方法，接口Mapper与其映射文件的全限定名需一致)-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ayi.dao"/>
        <property name="sqlSessionFactoryBeanName" value="SessionFactory"/>
    </bean>

2. 查看pom是否缺失以下依赖（有些文章说是缺失spring-tx）

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.3.17</version>
    </dependency>

正常来说应该是可以了，但我在添加完spring-jdbc后出现了新的报错，原来是mysql-connector依赖过旧，更换为8.0.28后成功运行。