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1:插入返回主键
<insert id="save" parameterType="map" useGeneratedKeys="true" keyProperty="ID" flushCache="false">
insert into table (
CODE
) values (
#{CODE}
)
</insert>
获取的主键方式:map.get("ID")
2:批量插入 传入参数list
<insert id="save" parameterType="java.util.List" flushCache="false">
insert into table
(
CODE
) values
<foreach collection="list" item="item" separator=",">
(#{item.CODE})
</foreach>
</insert>
3:批量更新
传入参数list
注:需在 properties的配置文件中的URL 添加“allowMultiQueries=true”
<update id="updates" parameterType="java.util.List" flushCache="false">
<foreach collection="list" item="item" index="index" open="" close="" separator=";">
update table
<set>
CODE =${item.CODE},
UPDATE_TIME =${item.UPDATE_TIME}
</set>
where ID =${item.ID}
</foreach>
</update>
4:批量删除 传入参数数组
<delete id="deleteAll" parameterType="String" flushCache="false">
delete from table
where
ID in
<foreach item="item" index="index" collection="array" open="(" separator="," close=")">
#{item}
</foreach>
</delete>