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命名參數查詢爲了防止SQL注入我試圖將轉換爲動態查詢,命名參數查詢。然而,當我使用此代碼 -問題,在Hibernate
String query = "from Ad a left join fetch a.adQueries left join fetch a.aduser u left join fetch u.profile where a.id =:identifier";
Query q = s.createQuery(query);
q.setParameter("identifier", id);
無數據返回從DB即使數據是存在的,動態的形式返回數據
和相同的查詢時,我使用此代碼 -
String query = "from Ad a left join fetch a.adQueries left join fetch a.aduser u left join fetch u.profile where a.id =:identifier";
Query q = s.createQuery(query);
q.setLong("identifier", id);
它拋出一個空指針異常..
請讓我知道我錯了
感謝