47 lines
1.6 KiB
Java
47 lines
1.6 KiB
Java
package com.book.backend.common;
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import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.ibatis.reflection.MetaObject;
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import org.springframework.stereotype.Component;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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/**
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* 自定义元数据对象处理器
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* 公共填充功能
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* MyBatisPlus
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*/
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@Component
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@Slf4j
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public class MyMetaObjectHandler implements MetaObjectHandler {
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/**
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* 插入操作自动填充
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* @param metaObject
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*/
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@Override
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public void insertFill(MetaObject metaObject) {
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// metaObject.setValue("createTime", LocalDateTime.now());
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// metaObject.setValue("updateTime",LocalDateTime.now());
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// MyBatisPlus3.3.0版本后推荐使用strictInsertFill，当字段值为null时，不进行填充
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this.strictInsertFill(metaObject,"createTime",String.class,
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LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
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this.strictInsertFill(metaObject,"updateTime",String.class,
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LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
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}
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/**
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* 更新操作自动填充
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* @param metaObject
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*/
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@Override
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public void updateFill(MetaObject metaObject) {
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// MyBatisPlus3.3.0版本后推荐使用strictUpdateFill，当字段值为null时，不进行更新
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// metaObject.setValue("updateTime",LocalDateTime.now());
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this.strictUpdateFill(metaObject,"updateTime",
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String.class,LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
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}
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}
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