問題描述
@Result註解column參數傳遞多個參數。
官方文檔
| property | description |
|---|---|
| column | 數據庫的列名或者列標籤別名。與傳遞給resultSet.getString(columnName)的參數名稱相同。注意： 在處理組合鍵時，您可以使用column=“{prop1=col1,prop2=col2}”這樣的語法，設置多個列名傳入到嵌套查詢語句。這就會把prop1和prop2設置到目標嵌套選擇語句的參數對象中。 |
解決方案
@Mapper
public interface OrdersMapper {
@SelectProvider(type=BillProvider.class , method="queryBillDetail")
@Results({
@Result(id=true,column="id",property="id"),
@Result(column="order_num",property="orderNum"),
@Result(column="{orderId=id,sourceId=source_id}",javaType=BigDecimal.class,property="cbpFee",many=@Many(select="com.ecloud.hobay.orders.service.infrastructure.mapper.wallet.WalletDetailMapper.getchangeFee"))
})
Bill queryBillDetail(QureryBillParams qureryBillParams) throws Exception;
}
@Mapper
public interface WalletDetailMapper {
@Select({"SELECT ABS(changes) changes from wallet_detail WHERE biz_type=1 AND category=1 AND (source_id = #{orderId} or source_id = #{sourceId}) ORDER BY create_time LIMIT 1"})
BigDecimal getchangeFee(Map<String,Object> param);
}
參考文章
https://blog.csdn.net/BL_Endian/article/details/76013843
https://blog.csdn.net/weixin_34055787/article/details/91890168
https://blog.csdn.net/weixin_43297055/article/details/93635950