java常用方法

1.参数检验

Preconditions.checkArgument();

2.获取request

 ServletRequestAttributes attrs =
                    (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            String xxxxxxx= attrs.getRequest().getHeader("xxxxx");

where
        time <![CDATA[ >= ]]> concat(#{startTm},' ','00:00:00')
        AND time <![CDATA[ <= ]]> concat(#{endTm},' ','23:59:59')