baomidou Mabatis plus引入异常

1

主要异常信息 Error creating bean with name 'dataSource'

但是有个重要提示

      dynamic-datasource Please check the setting of primary

解决方法：增加

<dependency><groupId>com.baomidou</groupId><artifactId>dynamic-datasource-spring-boot-starter</artifactId><version>4.3.1</version>
</dependency>

2

java.lang.NullPointerException: Cannot invoke "com.tencent.wxcloudrun.dao.UserMapper.selectList(com.baomidou.mybatisplus.core.conditions.Wrapper)" because "this.userMapper" is null

如果你在单元测试中遇到这个错误，确保在测试类上使用了正确的注解来模拟Spring容器，如@RunWith(SpringRunner.class)和@SpringBootTest。

3

Correct the classpath of your application so that it contains a single, compatible version of org.ap

含有batis名字的类冲突，在pom.xml删除，clean

4.PaginationInnerInterceptor

无法引入PaginationInnerInterceptor

因为 jsqlparser 5.0+ 版本不再支持 jdk8 针对这个问题解耦 jsqlparser 依赖。 正确打开姿势，引入 mybatis-plus-bom 模块，然后引入 ..starter 和 ..jsqlparser.. 依赖

pom.xml中增加

   <dependencyManagement><dependencies><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-bom</artifactId><version>3.5.9</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-jsqlparser-4.9</artifactId></dependency>