<insert id="batchUpdatePBWUserInfo" parameterType="java.util.List">
MERGE INTO S_PBW_USER t
USING (
<foreach collection="list" item="item" index="index" separator="union" >
SELECT
#{item.userId,jdbcType=VARCHAR} USERID,
#{item.userName,jdbcType=VARCHAR} USERNAME,
#{item.userType,jdbcType=VARCHAR} USERTYPE,
#{item.mobile,jdbcType=VARCHAR} MOBILE,
#{item.code,jdbcType=VARCHAR} USECODE,
#{item.companyName,jdbcType=VARCHAR} COMPANYNAME,
SYSDATE CREATE_TIME
FROM DUAL
</foreach>) t1
ON (t.USER_ID = t1.USERID )
WHEN MATCHED THEN
UPDATE SET t.update_time = t1.CREATE_TIME
WHEN NOT MATCHED THEN
INSERT(ID, USER_ID, USER_NAME, MOBILE, CODE, COMPAY_NAME, DEL_FLAG,CREATE_TIME)
VALUES (t1.USERID, t1.USERID, t1.USERNAME, t1.MOBILE, t1.USECODE, t1.COMPANYNAME, 0,t1.CREATE_TIME)
</insert>
总则:使用merge,存在就更新,不存在就插入
其中,需要注意:1.其中list中放的是个实体对象 list = new ArrayList<PBWUserInfo>();
2.一次最好不要插入太多(本人是每次200,休眠一秒,因为是在循环里面异步处理的),否则会出现一些其他的错误。用代码控制一次插入的条数