Shulou(Shulou.com)06/02 Report--

Mapper layer inheritance BaseMapper need to introduce pom dependency is what, I believe many inexperienced people are helpless about this, this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Mapper layer inherits BaseMapper introduces pom dependency com.baomidou mybatis-plus 3.0.3 BaseMapper Usage of Mybatis-Plus BaseMapper Usage

After Mapper inherits this interface, you can get CRUD functionality without writing mapper.xml file

public interface BaseMapper { //Insert a record Parameter: Entity Return: int Integer insert(T entity); //Delete parameter according to ID: primary key ID Return: int Integer deleteById(Serializable id); //Delete records according to columnMap condition Parameter: table field map object Return: int Integer deleteByMap(@Param("cm") Map columnMap); //Delete records according to entity condition Parameter: entity object encapsulation operation class (can be null) Return: int Integer delete(@Param("ew") Wrapper wrapper); //Delete (delete in batches according to ID) Parameter: Primary Key ID List Return: int Integer deleteBatchIds(List

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.