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Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SEQ' which is not functiona 阅读全文
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1.进入mysql容器中 docker exec -it mysqltest(mysql容器名称) bash 2.进入mysql数据库 mysql -uroot -p 3.输入mysql密码 4.远程连接授权 mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@ 阅读全文
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/** * 去重list中的重复元素 * @param list * @return */ public static List removeRepeat(List list){ Set set = new HashSet(list); list.clear(); list.addAll(s... 阅读全文