java灵活使用mysql中json类型字段存储数据详解

CREATE TABLE `bd_order` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `orderId` varchar(55) DEFAULT NULL COMMENT '订单id',
  `nick` varchar(55) DEFAULT NULL COMMENT '用户昵称',
  `skuInfo` json DEFAULT NULL COMMENT '商品信息',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='订单表';

@Data
public class SkuInfo {
    
    private String name;
    private String price;
    private String skuId;

}

@Data
public class BdOrder {
    private Long id;
    private String orderId;
    private String nick;
    @TableField(value = "skuInfo",typeHandler = FastjsonTypeHandler.class)
    private Object skuInfo;

}

List<SkuInfo> list = new ArrayList<>();
SkuInfo skuInfo = new SkuInfo();
skuInfo.setName("华为mate70");
skuInfo.setPrice("6000.00");
skuInfo.setSkuId("12345678");
list.add(skuInfo);

BdOrder bdOrder = new BdOrder();
bdOrder.setOrderId("111");
bdOrder.setNick("张三");
bdOrder.setSkuInfo(list);
//执行插入sql

//查询bd_order表得到如下数据
BdOrder bdOrder = 查询的数据
JSONArray jsonArray = JSONUtil.parseArray(bdOrder.getSkuInfo);
List<SkuInfo> skuInfoList = jsonArray.toList(SkuInfo.class);
//这样就得到了skuInfoList ,也是订单对应的多个商品数据

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.7.3</version>
</dependency>