Java代码实现

	@Value("${timeTask.scheduled}")private boolean scheduled;// 提前创建3天的表@Scheduled(cron = "0 0 1 * * ?")public void createTable() {if (scheduled) {log.info("开始检验日志表");LocalDate localDate = LocalDate.now();LocalDate tomoDate = localDate.plusDays(1);// 当前日期时间String nowtableName = tomoDate.format(DateTimeFormatter.BASIC_ISO_DATE);// 1.判断表是否存在Integer exist = operationLogService.existTable(nowtableName);if (exist == 0) {// 2.不存在创建日表operationLogService.createTable(nowtableName, 3);log.info("定时任务已创建3天的日志表, 开始日期{}", tomoDate);}}}

mybatis.xml代码实现

<select id="createTable" resultType="java.lang.Integer"statementType="CALLABLE">{call proc_create_table_log(#{startTime,mode=IN,jdbcType=VARCHAR},#{interval,mode=IN,jdbcType=INTEGER})}
</select>

mysql创建可运行函数，在mybatis.xml中被调用。

CREATE DEFINER=`root`@`%` PROCEDURE `proc_create_table_log`(in val_s varchar(10), in val_e int)
begin
declare i int;
declare idays varchar(8);
set i=0;
while i<val_e do
set idays=DATE_FORMAT(date_add(val_s, interval i day),'%Y%m%d');
set @sql_create_table = concat(
"CREATE TABLE if not exists `operation_log_",idays,"`  (`id` varchar(16) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '操作日志id',`creator` char(36) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '操作人',`user_id` int(10) NULL DEFAULT NULL COMMENT '操作人ID',`title` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '标题',`content` varchar(1024) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '内容',`create_date` datetime NULL DEFAULT NULL COMMENT '创建时间',`ip` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '操作人ip',`city_code` char(1) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '城市代码',`time` int(11) NULL DEFAULT NULL COMMENT '耗时 单位秒',`result` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '结果，1-成功 2-失败',`method` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '请求方法',`module` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '模块名',PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '操作日志表' ROW_FORMAT = Dynamic;
");
PREPARE sql_create_table FROM @sql_create_table;   
EXECUTE sql_create_table;
set i=i+1;
end while;
end