版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/jctian000/article/details/81032654
footer css所在文件：apps/redmine/htdocs/public/themes/classic/stylesheets/application.css
修改footer样式如下：
//#footer { background-color: #578bb8; border: 0; color: #fff;}
//#footer a { color: #fff; font-weight: bold; }
#footer { background: #e8eaec; border: 0; color: #999; text-align: right; margin: 0px 0px; margin-top: 6px;}
#footer a { color: #999; font-weight: bold; }
footer 文字内容所在文件：apps/redmine/htdocs/app/views/layouts/base.html.erb
找到相应的内容按不同的需求修改如下：
<div id="footer">
<div class="bgl"><div class="bgr">
Powered by <%= link_to 'XXX', 'http://www.xxx.cn/' %> © 2012-2018 somebody
</div></div>
</div>