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40 lines
638 B
40 lines
638 B
3 months ago
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package com.example.mapper;
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import com.example.entity.User;
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import org.apache.ibatis.annotations.Select;
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import java.util.List;
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/**
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* 操作user相关数据接口
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*/
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public interface UserMapper {
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/**
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* 新增
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*/
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int insert(User user);
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/**
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* 删除
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*/
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int deleteById(Integer id);
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/**
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* 修改
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*/
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int updateById(User user);
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/**
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* 根据ID查询
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*/
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User selectById(Integer id);
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/**
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* 查询所有
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*/
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List<User> selectAll(User user);
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@Select("select * from user where username = #{username}")
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User selectByUsername(String username);
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}
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