最近用MyBatis做开发的时候发现，MyBatis有个小小的缺点，不支持批量update？

Configuration c= this.getSqlSession().getConfiguration()

ManagedTransactionFactory managedTransactionFactory = new ManagedTransactionFactory()

BatchExecutor batchExecutor=new BatchExecutor(c,managedTransactionFactory.newTransaction(this.getSqlSession().getConnection(),false))

int i = 0

for (T entity : collection) {

batchExecutor.doUpdate(c.getMappedStatement(sql), entity)

if (i++ >0 &&i % BATCH_SIZE == 0) {

batchExecutor.doFlushStatements()

}

}

batchExecutor.doFlushStatements()

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