替换 MyBatis-Plus 默认的 saveBatch的实现步骤

public interface YourMapper extends BaseMapper<YourModel> {
    void insertBatch(@Param("list") List<YourModel> list);
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.yourpackage.YourMapper">
    <insert id="insertBatch">
        INSERT INTO your_table_name (
            id,
            name,
            create_time
            <!-- 列出所有字段 -->
        ) VALUES
        <foreach collection="list" item="item" separator=",">
            (
                #{item.id},
                #{item.name},
                #{item.createTime}
                <!-- 对应字段值 -->
            )
        </foreach>
    </insert>
</mapper>

import org.springframework.stereotype.Component;
import java.util.List;
import java.util.function.Consumer;
@Component
public class BatchUtil {
    /**
     * 通用分批执行方法
     *
     * @param dataList    要处理的数据列表
     * @param batchSize   每批大小
     * @param batchAction 每批数据的处理逻辑（例如：mapper::insertBatch）
     * @param <T>         数据类型
     */
    public <T> void executeBatch(List<T> dataList, int batchSize, Consumer<List<T>> batchAction) {
        if (dataList == null || dataList.isEmpty()) {
            return;
        }
        for (int i = 0; i < dataList.size(); i += batchSize) {
            int end = Math.min(i + batchSize, dataList.size());
            batchAction.accept(dataList.subList(i, end));
        }
    }
}

@Autowired
private BatchUtil batchUtil;
batchUtil.executeBatch(list, 500, YourMapper::insertBatch);