springboot project null pointer exception in the general category mapper call dao layer - Code World

springboot project null pointer exception in the general category mapper call dao layer

Others 2019-08-14 11:59:08 views: null

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Origin www.cnblogs.com/nongzihong/p/11350308.html

springboot project null pointer exception in the general category mapper call dao layer

Spring framework, the general category of service calls or mapper, reported a null pointer solutions

In the java project, the dao instance and the service instance report a null pointer exception when they are called

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