springBoot在原有使用mybatis基础上兼容mybatisPlus

1.pom引入mybatisPlus依赖

<dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.2</version>
            <exclusions>
                <exclusion>
                    <artifactId>mybatis</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>mybatis-spring</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
            </exclusions>
        </dependency>

直接完成上述依赖引用启动项目时会提示 

Caused by: java.lang.ClassNotFoundException: org.mybatis.logging.LoggerFactory

解决方式是引用更高版本的springboot 的 mybatis依赖；以下依赖亲测可用

<dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.3</version>
        </dependency>

最后 得出方案；引用以下包就可以在原来项目基础上开心的使用mybatisPlus了（以前有mybatis依赖记得去掉（如果是继承的parent包不用管 maven有就近依赖原则））：

        <!--兼容mybatis和mybatisPlus依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.3</version>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.2</version>
            <exclusions>
                <exclusion>
                    <artifactId>mybatis</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>mybatis-spring</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
            </exclusions>
        </dependency>