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>