DROP TABLE IF EXISTS `cSessionInfo`;
CREATE TABLE `cSessionInfo` (
  `open_id` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `uuid` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `skey` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `last_visit_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `session_key` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `user_info` varchar(2048) COLLATE utf8mb4_unicode_ci NOT NULL,
  PRIMARY KEY (`open_id`),
  KEY `openid` (`open_id`) USING BTREE,
  KEY `skey` (`skey`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='会话管理用户信息';

SET FOREIGN_KEY_CHECKS = 1;

mysql 5.5 只能有一个字段为 timestamp 解决办法：

1.升级mysql

2.修改其中一个字段的类型为datetime