mybatis 对 mysql的批量操作

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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>