一、mybatis执行批量更新batch update 的方法(mysql数据库)
1、数据库连接必须配置:&allowMultiQueries=true(切记一定要加上这个属性,否则会有问题,切记!切记!切记!)
我的配置如下:jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
2、批量修改并加判断条件(修改字段可选)
<!-- 批量更新 -->
<update id="updateMatchs" parameterType="java.util.List">
<foreach collection="matchs" item="item" index="index" open="" close="" separator=";">
update t_match
<set>
<if test="item.title !=null">
TITLE = #{item.title,jdbcType=VARCHAR},
</if>
<if test="item.homeScore !=null">
HOME_SCORE = #{item.homeScore,jdbcType=INTEGER},
</if>
<if test="item.visitScore !=null">
VISTT_SCORE = #{item.visitScore,jdbcType=INTEGER},
</if>
<if test="item.liveSource !=null">
LIVE_SOURCE = #{item.liveSource,jdbcType=VARCHAR},
</if>
<if test="item.liveURL !=null">
LIVE_URL = #{item.liveURL,jdbcType=VARCHAR},
</if>
<if test="item.isHotMatch !=null">
IS_HOT_MATCH = #{item.isHotMatch,jdbcType=VARCHAR}
</if>
</set>
where HOME_TEAM_ID = #{item.homeTeamId,jdbcType=VARCHAR} and
VISIT_TEAM_ID = #{item.visitTeamId,jdbcType=VARCHAR} and
MATCH_TIME = #{item.matchTime,jdbcType=BIGINT}
</foreach>
</update>
3、java 接口
/**
* 批量修改赛程
*
* @param matchs
* @throws DaoException
*/
void updateMatchs(@Param(value = "matchs")List<MatchBasic> matchs);
二、mybatis执行批量更新batch update 的方法(oracle数据库)
1、批量修改并加判断条件(修改字段可选)
<update id="batchUpdateSplitSinglePickCurrency" parameterType="java.util.List">
<foreach collection="list" item="item" index="index" open="begin" close=";end;" separator=";">
UPDATE ZC_TR_MULTI_ORDER_CURRENCY
<set>
<if test="item.sysCorderCode != null">
SYS_CORDER_CODE = #{item.sysCorderCode,jdbcType=VARCHAR},
</if> <if test="item.sysPorderCode != null">
SYS_PORDER_CODE = #{item.sysPorderCode,jdbcType=VARCHAR},
</if> <if test="item.bizPorderCode != null">
BIZ_PORDER_CODE = #{item.bizPorderCode,jdbcType=VARCHAR},
</if> <if test="item.originalOrderCode != null">
ORIGINAL_ORDER_CODE = #{item.originalOrderCode,jdbcType=VARCHAR},
</if> <if test="item.splitUserId != null">
SPLIT_USER_ID = #{item.splitUserId,jdbcType=VARCHAR},
</if> <if test="item.createDate != null">
CREATE_DATE = #{item.createDate},
</if> <if test="item.updateDate != null">
UPDATE_DATE = #{item.updateDate},
</if>
</set>
where id = #{item.id,jdbcType=VARCHAR}
</foreach>
</update>
2、java接口
/**
* @Desc : 批量更新大批量子订单详情信息
* @Author : ZRP
* @Date : 2018/1/26 15:24
*/
int batchUpdateSplitSinglePickCurrency(@Param(value = "list") List<MultiOrderCurrency> list) throws Exception;
PS:一定要注意文中标红色的地方