一、 MP的学习

1、导入依赖

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<dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-boot-starter</artifactId>
        <version>3.5.1</version>
</dependency>

2、MP生成日志

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mybatis-plus:
  global-config:
    db-config:
      id-type: auto //id设置为自增，默认是雪花算法生成的id
      table-prefix: sys_//数据库表的前缀
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl//控制台输出

3、MP的分页配置类

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@Configuration
public class MPconfig {
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor(){
        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();//拦截器
        mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor());//分页拦截器
        return  mybatisPlusInterceptor;
    }
}