mybatis执行批量更新batch update 的方法（Oracle /Mysql）
mybatis在使用批量更新时mysql和oracle有一些差别，记录下以免下次忘记。
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！）
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
update HSP_DOCADVICE_INF
VST_CAD = #{hspDocadviceInf.vstCad,jdbcType=VARCHAR},
DOCADVICE_ISDAT = #{hspDocadviceInf.docadviceIsdat,jdbcType=TIMESTAMP},
DOCADVICE_BEDAT = #{hspDocadviceInf.docadviceBedat,jdbcType=TIMESTAMP},
DOCADVICE_NAM = #{hspDocadviceInf.docadviceNam,jdbcType=VARCHAR},
DOCADVICE_NUIMDAT = #{hspDocadviceInf.docadviceNuimdat,jdbcType=TIMESTAMP},
DOCADVICE_NUIMNAM = #{hspDocadviceInf.docadviceNuimnam,jdbcType=VARCHAR},
DOCADVICE_DOCSTDAT = #{hspDocadviceInf.docadviceDocstdat,jdbcType=TIMESTAMP},
DOCADVICE_DOCSTNAM = #{hspDocadviceInf.docadviceDocstnam,jdbcType=VARCHAR},
DOCADVICE_NUSTDAT = #{hspDocadviceInf.docadviceNustdat,jdbcType=TIMESTAMP},
DOCADVICE_NUSTNAM = #{hspDocadviceInf.docadviceNustnam,jdbcType=VARCHAR},
CREATE_DAT = #{hspDocadviceInf.createDat,jdbcType=TIMESTAMP},
CREATE_NUM = #{hspDocadviceInf.createNum,jdbcType=VARCHAR},
CREATE_NAM = #{hspDocadviceInf.createNam,jdbcType=VARCHAR},
UPDATE_DAT = #{hspDocadviceInf.updateDat,jdbcType=TIMESTAMP},
UPDATE_NUM = #{hspDocadviceInf.updateNum,jdbcType=VARCHAR},
UPDATE_NAM = #{hspDocadviceInf.updateNam,jdbcType=VARCHAR},
DOCADVICE_WAY = #{hspDocadviceInf.docadviceWay,jdbcType=VARCHAR},
DOCADVICE_TYPE = #{hspDocadviceInf.docadviceType,jdbcType=VARCHAR},
DOCADVICE_FLAG = #{hspDocadviceInf.docadviceFlag,jdbcType=CHAR},
DOCADVICE_YYJL = #{hspDocadviceInf.docadviceYyjl,jdbcType=VARCHAR},
DOCADVICE_BZ = #{hspDocadviceInf.docadviceBz,jdbcType=VARCHAR},
DOCADVICE_MAINFLG = #{hspDocadviceInf.docadviceMainflg,jdbcType=VARCHAR},
PX = #{hspDocadviceInf.px,jdbcType=VARCHAR},
GYFSMC = #{hspDocadviceInf.gyfsmc,jdbcType=VARCHAR},
SL = #{hspDocadviceInf.sl,jdbcType=VARCHAR},
DOCADVICE_STATUS = #{hspDocadviceInf.docadviceStatus,jdbcType=VARCHAR},
DOCADVICE_CHECKNAM = #{hspDocadviceInf.docadviceChecknam,jdbcType=VARCHAR},
DOCADVICE_NUIMNAM2 = #{hspDocadviceInf.docadviceNuimnam2,jdbcType=VARCHAR},
DOCADVICE_CONTENT = #{hspDocadviceInf.docadviceContent,jdbcType=CLOB},
DOCADVICE_SEQ = #{hspDocadviceInf.docadviceSeq,jdbcType=VARCHAR}
3、java 接口
public int updateNewYzxx(@Param(value = "list") List list);
二、mybatis执行批量更新batch update 的方法（oracle数据库）
update HSP_DOCADVICE_INF
VST_CAD = #{hspDocadviceInf.vstCad,jdbcType=VARCHAR},
DOCADVICE_ISDAT = #{hspDocadviceInf.docadviceIsdat,jdbcType=TIMESTAMP},
DOCADVICE_BEDAT = #{hspDocadviceInf.docadviceBedat,jdbcType=TIMESTAMP},
DOCADVICE_NAM = #{hspDocadviceInf.docadviceNam,jdbcType=VARCHAR},
DOCADVICE_NUIMDAT = #{hspDocadviceInf.docadviceNuimdat,jdbcType=TIMESTAMP},
DOCADVICE_NUIMNAM = #{hspDocadviceInf.docadviceNuimnam,jdbcType=VARCHAR},
DOCADVICE_DOCSTDAT = #{hspDocadviceInf.docadviceDocstdat,jdbcType=TIMESTAMP},
DOCADVICE_DOCSTNAM = #{hspDocadviceInf.docadviceDocstnam,jdbcType=VARCHAR},
DOCADVICE_NUSTDAT = #{hspDocadviceInf.docadviceNustdat,jdbcType=TIMESTAMP},
DOCADVICE_NUSTNAM = #{hspDocadviceInf.docadviceNustnam,jdbcType=VARCHAR},
CREATE_DAT = #{hspDocadviceInf.createDat,jdbcType=TIMESTAMP},
CREATE_NUM = #{hspDocadviceInf.createNum,jdbcType=VARCHAR},
CREATE_NAM = #{hspDocadviceInf.createNam,jdbcType=VARCHAR},
UPDATE_DAT = #{hspDocadviceInf.updateDat,jdbcType=TIMESTAMP},
UPDATE_NUM = #{hspDocadviceInf.updateNum,jdbcType=VARCHAR},
UPDATE_NAM = #{hspDocadviceInf.updateNam,jdbcType=VARCHAR},
DOCADVICE_WAY = #{hspDocadviceInf.docadviceWay,jdbcType=VARCHAR},
DOCADVICE_TYPE = #{hspDocadviceInf.docadviceType,jdbcType=VARCHAR},
DOCADVICE_FLAG = #{hspDocadviceInf.docadviceFlag,jdbcType=CHAR},
DOCADVICE_YYJL = #{hspDocadviceInf.docadviceYyjl,jdbcType=VARCHAR},
DOCADVICE_BZ = #{hspDocadviceInf.docadviceBz,jdbcType=VARCHAR},
DOCADVICE_MAINFLG = #{hspDocadviceInf.docadviceMainflg,jdbcType=VARCHAR},
PX = #{hspDocadviceInf.px,jdbcType=VARCHAR},
GYFSMC = #{hspDocadviceInf.gyfsmc,jdbcType=VARCHAR},
SL = #{hspDocadviceInf.sl,jdbcType=VARCHAR},
DOCADVICE_STATUS = #{hspDocadviceInf.docadviceStatus,jdbcType=VARCHAR},
DOCADVICE_CHECKNAM = #{hspDocadviceInf.docadviceChecknam,jdbcType=VARCHAR},
DOCADVICE_NUIMNAM2 = #{hspDocadviceInf.docadviceNuimnam2,jdbcType=VARCHAR},
DOCADVICE_CONTENT = #{hspDocadviceInf.docadviceContent,jdbcType=CLOB},
DOCADVICE_SEQ = #{hspDocadviceInf.docadviceSeq,jdbcType=VARCHAR}
2、java接口
public int updateNewYzxx(@Param(value = "list") List list);
**
总结：mysql批量更改数据源配置文件中必须配置：&allowMultiQueries=true Oracle批量修改数据时foreach中要配置 open=“begin” close=";end;" separator=";"
**