MybatisPlusConfig.java 1.64 KB
package com.xly.erp.common.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import java.time.LocalDateTime;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * MyBatis-Plus 配置(docs/04 § 3.4)。
 *
 * <p>REQ-USR-001 T3:注册创建时间自动填充处理器(INSERT 填 tCreateDate),
 * 并注册分页插件供后续 REQ(如 REQ-USR-003 查询)复用。</p>
 */
@Configuration
public class MybatisPlusConfig {

    /**
     * 分页插件(MySQL)。
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }

    /**
     * 审计字段自动填充:INSERT 时若 tCreateDate 为空则填当前时间。
     */
    @Bean
    public MetaObjectHandler metaObjectHandler() {
        return new MetaObjectHandler() {
            @Override
            public void insertFill(MetaObject metaObject) {
                strictInsertFill(metaObject, "tCreateDate", LocalDateTime.class, LocalDateTime.now());
            }

            @Override
            public void updateFill(MetaObject metaObject) {
                // 本阶段无更新审计字段需求。
            }
        };
    }
}