git 提交代码是会遇到以下问题, git commit 代码时提示: Warning: Your console font probably doesn‘t support Unicode. If you experience trange characters in the output, consider switching to a TrueType font such as ucida Console! 这是代码中含有中文导致的,且把代码改为utf-8也是解决不了的,查询了很多资料,最
问题: 在Eclipse中运行Web项目Jsp网页启动Tomcat时提示端口被占用: Several ports (8005, 8080, 8009) required by Tomcat v9.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start this
用root连接mysql时提示:访问被拒绝 检查一下mysql server是否开启,发现后台在运行着.. 然后查了一下mysql的用户表,发现root只能运行使用本地ip(localhost或者127.0.0.1)进行连接 解决方法:新开一个权限GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'jeffw' WITH GRANT OPTION; 然后查询一下:select * from user; 新开的root的已经开启权限,
当没有用 EXISTS 引入子查询时,在选择列表中只能指定一个表达式.比如 select * from T_Employee where FNumber not in ( select top 5* from T_Employee order by FSalary desc)order by FSalary 在sql中执行出现错误 更正:select * from T_Employee where FNumber not in (select top 5 FNumber from T_Em