03 2019 档案

摘要:java web应用获取客户端上下线实时状态变化,在线客户列表 阅读全文
posted @ 2019-03-28 08:20 Erneste 阅读(584) 评论(0) 推荐(0)
摘要:SSM整合quartz 阅读全文
posted @ 2019-03-25 15:35 Erneste 阅读(1845) 评论(2) 推荐(0)
摘要:spring整合quartz异常:IS_VOLATILE;nested exception is org.quartz.SchedulerConfigException: Failure occured during job recovery;Couldn't clean volatile data: Unknown column 'IS_VOLATILE' in 'where clause';org.quartz.SchedulerConfigException: Failure occured during job recovery;org.quartz.JobPersistenceException: Couldn't clean volatile data: Unknown column 'IS_VOLATILE' in 'where clause' 阅读全文
posted @ 2019-03-25 14:32 Erneste 阅读(5114) 评论(0) 推荐(0)
摘要:java nio是什么,java nio与传统io的区别,java nio的核心思想,channel,buffer,selector,怎么使用java nio读写文件 阅读全文
posted @ 2019-03-13 09:01 Erneste 阅读(1319) 评论(0) 推荐(0)
摘要:redis与meamache区别、redis为什么这么快、redis的应用场景、redis的数据类型、redis的缺点、redis的持久化、redis的主从复制 阅读全文
posted @ 2019-03-04 16:34 Erneste 阅读(325) 评论(0) 推荐(0)
摘要:mysql排序,同样的sql,mysql 每次查询结果顺序不一致 阅读全文
posted @ 2019-03-01 12:51 Erneste 阅读(3806) 评论(0) 推荐(0)