ruoyi mybatis替换为mybatis-plus

在ruoyi-admin包中pom新增 mybatis-plus配置

<!--mybatis-plus-->
<dependency>
 <groupId>com.baomidou</groupId>
 <artifactId>mybatis-plus-boot-starter</artifactId>
 <version>3.5.3.1</version>
</dependency>

在applicatgion.yaml中新增配置

# Mybatis-plus配置
mybatis-plus:
  mapper-locations: classpath*:mapper/**/*Mapper.xml
  type-aliases-package: com.ruoyi.**.domain
  global-config:
    banner: false
    db-config:
      # 主键类型 0:数据库ID自增 1.未定义 2.用户输入 3 id_worker 4.uuid 5.id_worker字符串表示
      id-type: AUTO
      #字段策略 0:"忽略判断",1:"非 NULL 判断"),2:"非空判断"
      field-strategy: NOT_NULL
      # 默认数据库表下划线命名
      table-underline: true

注释掉MyBatisConfig中的代码，文件位置：com/ruoyi/framework/config/MyBatisConfig.java
配置MyMetaObjectHandler，自动填充内容

package com.ruoyi.common.config;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.ruoyi.common.utils.SecurityUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;

@Slf4j
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {

    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("start insert fill ....");
        this.strictInsertFill(metaObject, "create_time", LocalDateTime.class, LocalDateTime.now()); // 起始版本 3.3.0(推荐使用)
        this.strictInsertFill(metaObject, "create_by", Long.class, SecurityUtils.getUserId());
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("start update fill ....");
        this.strictUpdateFill(metaObject, "update_time", LocalDateTime.class, LocalDateTime.now()); // 起始版本 3.3.0(推荐)
    }
}