您好,登錄后才能下訂單哦!
這篇文章主要講解了“mybatis返回類型map時怎么把key大寫轉為小寫”,文中的講解內容簡單清晰,易于學習與理解,下面請大家跟著小編的思路慢慢深入,一起來研究和學習“mybatis返回類型map時怎么把key大寫轉為小寫”吧!
SELECT DEPTNO as "deptno",DEPTNAME,DEPTGRADE,PARENTDEPT FROM VMGR_DEPT ORDER BY DEPTGRADE,DEPTNO
<select id="selectBlogRetHashMap" parameterType="int" resultType="map"> SELECT id AS "id", title AS "title", content AS "content" FROM Blog WHERE id = #{id} </select>
public class Snippet { public static Map<String, Object> transformUpperCase(Map<String, Object> orgMap) { Map<String, Object> resultMap = new HashMap<>(); if (orgMap == null || orgMap.isEmpty()) { return resultMap; } Set<String> keySet = orgMap.keySet(); for (String key : keySet) { String newKey = key.toLowerCase(); newKey = newKey.replace("_", ""); resultMap.put(newKey, orgMap.get(key)); } return resultMap; } }
在查詢的字段后加別名
user_id as “userId”
注意:別名必須加雙引號
<select id="queryMaxPriceAAndUser" parameterType="java.lang.String" resultType="java.util.HashMap"> SELECT A.SELL_PRICE as "price", B.USER_ID as "userId" FROM QLYY_SELL_AUCTION_RECORD A, QLYY_SELL_APPLY B WHERE A.SELL_PRICE = (SELECT MAX(SELL_PRICE) FROM QLYY_SELL_AUCTION_RECORD WHERE SELL_PROGRAM_ID = #{programId}) AND A.SELL_PROGRAM_ID = #{programId} AND B.APPLY_CODE = A.SELL_USER </select>
感謝各位的閱讀,以上就是“mybatis返回類型map時怎么把key大寫轉為小寫”的內容了,經過本文的學習后,相信大家對mybatis返回類型map時怎么把key大寫轉為小寫這一問題有了更深刻的體會,具體使用情況還需要大家實踐驗證。這里是億速云,小編將為大家推送更多相關知識點的文章,歡迎關注!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。