mybatis getone
时间: 2023-11-12 11:04:28 浏览: 120
MyBatis中的getOne方法是用来查询一条数据的。如果查询结果有多条数据,会报错。要么使用其他方法,要么只选择其中一条数据。可以在条件构造器Wrapper的结尾加上.last("limit 1")来只选择一条(第一条)数据。\[1\]
例如,在使用getOne方法时,可以这样写:
getOne(Wrappers.<CdOrderBoxDoorPointRef>lambdaQuery().eq(CdOrderBoxDoorPointRef::getOrderBoxId,boxIds.get(0)).last("limit 1"));\[2\]
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