mybatis批量插入数据，包括数据有null值

1.使用union all 来串连每个values，其中jdbcType的设置可以使null值也输入进去

	INSERT INTO DDZHPT.CMS_SCHEDUAL_DETIAL
	(
		DEPT_ID,
		SCHEDUAL_DATE,
		CMS_SCHEDUAL_TYPE_ID,
		CMS_SCHEDUAL_TEAM_ID,
		CMS_SCHEDUAL_TYPE_PERIOD_ID,
		CMS_SCHEDUAL_TIME_ID,
		SYS_POST_ID,
		POINT_ID,
		PERSON_ID
   )
   
   			SELECT
   			#{item.deptId,jdbcType=DECIMAL},
   			#{item.schedualDate,jdbcType=TIMESTAMP},
   			#{item.cmsSchedualTypeId,jdbcType=VARCHAR},
   			#{item.cmsSchedualTeamId,jdbcType=VARCHAR},
   			#{item.cmsSchedualTypePeriodId,jdbcType=VARCHAR},
   			#{item.cmsSchedualTimeId,jdbcType=VARCHAR},
   			#{item.sysPostId,jdbcType=VARCHAR},
   			#{item.pointId,jdbcType=VARCHAR},
   			#{item.personId,jdbcType=VARCHAR}
   			FROM DUAL
   

2.纯粹使用foreach

	
			INSERT INTO DDZHPT.CMS_SCHEDUAL_DETIAL
			(
				DEPT_ID,
				SCHEDUAL_DATE,
				CMS_SCHEDUAL_TYPE_ID,
				CMS_SCHEDUAL_TEAM_ID,
				CMS_SCHEDUAL_TYPE_PERIOD_ID,
				CMS_SCHEDUAL_TIME_ID,
				SYS_POST_ID,
				POINT_ID,
				PERSON_ID
		   )VALUES(
		   			#{item.deptId,jdbcType=DECIMAL},
		   			#{item.schedualDate,jdbcType=TIMESTAMP},
		   			#{item.cmsSchedualTypeId,jdbcType=VARCHAR},
		   			#{item.cmsSchedualTeamId,jdbcType=VARCHAR},
		   			#{item.cmsSchedualTypePeriodId,jdbcType=VARCHAR},
		   			#{item.cmsSchedualTimeId,jdbcType=VARCHAR},
		   			#{item.sysPostId,jdbcType=VARCHAR},
		   			#{item.pointId,jdbcType=VARCHAR},
		   			#{item.personId,jdbcType=VARCHAR}
		   			)
	

推荐使用第一种方式，数据库语句只有一条，减少数据库执行语句的负担