List<User> resultList = (List<User>)sqlSession.select("statementId"); <select id="statementId" resultType="User"> select * from user where id > 100 </select>
assume that the above SQL return no rows (i.e. there is no id greater than 100).java
The variable resultList will then be an empty List, but I want it to be null instead. How can I do that?sql
結果:spa
若是沒有查詢到結果,將會返回一個empty的r esultlist,而後resultlist 的size 是0 而不是null.code