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String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; <base href="<%=basePath%>"> request.getSchema() 可以返回当前页

1、获取当前日期N天之后的日期（N为正数则后推，N为负数则向前推）public static String afterNDay(int n){ Calendar c=Calendar.getInstance(); DateFormat df=new SimpleDateFormat("yyyy-MM-dd"); c.setTime(new Date()); c.a