1.批量新增
案例
注意:这只是部分代码,接口文件要和xml文件的namespace的值相同
mapper.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--插入单个-->
<mapper namespace="cn.liuhao.spide_haotanku.mapper.CategoryMapper" >
<insert id="insert" parameterType="category">
insert into category values (#{c_id},#{c_name})
</insert>
<!--多行插入-->
<insert id="inserts" parameterType="category" useGeneratedKeys="false">
insert into category values
<foreach collection="list" item="item" separator=",">
(#{item.c_id},#{item.c_name})
</foreach>
</insert>
</mapper>
mapper接口文件
public interface CategoryMapper {
public int insert(Category category);
public int inserts(List<Category> categories);
}