Mybatis 常用sql之批量添加和修改

Dao层

int updateByList(List list)

Mappe层

批量修改

<update id="updateByList" parameterType="java.util.List">

<foreach collection="list" item="item" index="index" separator="">

update jt_fin_repayment_plan

<set >

erestTotal != null" >

ORG_INTEREST_TOTAL = #{item.orgInterestTotal},

</if>

<if test="item.delFlag != null" >

DEL_FLAG = #{item.delFlag},

</if>

<if test="item.state != null" >

STATE = #{item.state},

</if>

<if test="item.createBy != null" >

CREATE_BY = #{item.createBy},

</if>

<if test="item.createTime != null" >

CREATE_TIME = #{item.createTime},

</if>

<if test="item.updateBy != null" >

UPDATE_BY = #{item.updateBy},

</if>

UPDATE_TIME = #{NOW(),

</set>

where REPAYMENT_ID = #{item.repaymentId}

</foreach>

</update>

----------------------------------------------------------------------------------------------------------

dao层

//批量添加

int addList(List list)

Map层

批量添加

<insert id="addList" parameterType="java.util.List">

insert into jt_fin_adjust_rates_project_history (

ID,ADJUST_RATES_ID,PROJECT_ID,START_WHOLE,

END_WHOLE,START_WITHOUT,END_WITHOUT,PROJECT_DATE,

KEEP,AUDIT_FLAG,STATUS,REMARK,DEL_FLAG,

CREATE_BY,CREATE_TIME,UPDATE_TIME,UPDATE_BY

)

values

<foreach collection="list" separator="," item="item" index="index">

((select UUID()), #{item.adjustRatesId},#{item.projectId},#{item.startWhole},

#{item.endWhole},#{item.startWithout},#{item.endWithout},#{item.projectDate},

#{item.keep},#{item.auditFlag},#{item.status},#{item.remark},#{item.delFlag},

#{item.createBy},sysdate(), #{item.updateTime}, #{item.updateBy})

</foreach>

</insert>

注意：我的id VARCHAR类型 主键 不能递增 在这里我用的是UUID生成的

原本，想写一个批量添加，回显id但是没实现就不写了，有大佬可以补充一下

这个要执行一下,调用一下这个方法才能确定有没有问题

关于mybatis批量插入的问题,建议你查看一下

http://limingnihao.iteye.com/blog/781671

mybatis的详细教程,

批量增加

<insert id="batchSaveUser">

insert into t_user (user_name,sex) values

<!-- 动态SQL之foreach的用法 -->

<!-- collection="users" 用于指定循环集合的名称，如果接口中并未指定参数别名，那么默认就是list

item="u" 用于指定每次循环后的对象的别名

separator="," 用于指定每次循环后之间的分割符-->

<foreach collection="users" item="u" separator=",">

(#{u.userName},#{u.sex})

</foreach>

</insert>

批量删除

<delete id="batchDeleteUser">

delete from t_user where id in (

<foreach collection="ids" item="id" separator=",">

#{id}

</foreach>

)

</delete>

---