mybatis-plus从2.X迁移到3.X

更新依赖

  <dependency>
      <groupId>com.baomidou</groupId>
      <artifactId>mybatis-plus</artifactId>
      <version>${mybaitsplus.version}</version>
   </dependency>

替换相关导入包

替换方法

原路径	替换路径
com.baomidou.mybatisplus.activerecord.Model	com.baomidou.mybatisplus.extension.activerecord.Model
com.baomidou.mybatisplus.annotations.TableId	com.baomidou.mybatisplus.annotation.TableId
com.baomidou.mybatisplus.enums.IdType	com.baomidou.mybatisplus.annotation.IdType
com.baomidou.mybatisplus.service.impl.ServiceImpl	com.baomidou.mybatisplus.extension.service.impl.ServiceImpl
com.baomidou.mybatisplus.mapper.BaseMapper	com.baomidou.mybatisplus.core.mapper.BaseMapper
com.baomidou.mybatisplus.plugins.Page	com.baomidou.mybatisplus.extension.plugins.pagination.Page
com.baomidou.mybatisplus.service.IService	com.baomidou.mybatisplus.extension.service.IService
com.baomidou.mybatisplus.mapper.EntityWrapper	com.baomidou.mybatisplus.core.conditions.query.QueryWrapper
com.baomidou.mybatisplus.toolkit.StringUtils	com.baomidou.mybatisplus.core.toolkit.StringUtils
com.baomidou.mybatisplus.annotations.TableField	com.baomidou.mybatisplus.annotation.TableField
com.baomidou.mybatisplus.annotations.TableName	com.baomidou.mybatisplus.annotation.TableName
com.baomidou.mybatisplus.exceptions.MybatisPlusException	com.baomidou.mybatisplus.exceptions.MybatisPlusException

Mapper
去除了insertAllColumn(T entity)，updateAllColumn(T entity)方法
新增update(T entity, Wrapper updateWrapper)方法
Service
insert和insertXXX方法改成了save和saveXXX方法
selectXXX方法改成了getXXX方法
deleteXXX改成了removeXXX方法

spring工程修改spring-mybaits配置文件

    <!-- Spring整合Mybatis -->
    <bean id="sqlSessionFactory" class="com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 自动扫描Mapping.xml文件 -->
        <property name="mapperLocations" value="classpath*:/sqlMapperXml/*.xml"></property>
        <property name="configLocation" value="classpath:xml/mybatis-config.xml"></property>
        <property name="typeAliasesPackage" value="com.project.ysb2.model"/>
        <property name="plugins">
            <array>
                <!-- 分页插件配置 -->
                <bean id="mybatisPlusInterceptor" class="com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor">
                    <property name="interceptors">
                        <list>
                            <ref bean="paginationInnerInterceptor"/>
                        </list>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <bean id="paginationInnerInterceptor"
          class="com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor">
        <!-- 指定数据库为MySQL -->
        <constructor-arg name="dbType" value="MYSQL"/>
    </bean>

spring工程修改mybaits-config配置文件

增加以下配置项

<setting name="mapUnderscoreToCamelCase" value="false"/>