设置显示时间戳
<%
request.setAttribute(\"currentTimeStamp\",Calendar.getInstance().getTime());
%>

显示：2009-11
<fmt:formatDate pattern=\"yyyy-MM\" value=\"${currentTimeStamp}\"/> <br/>
显示：2009-11-30 23:47:06
<fmt:formatDate pattern=\"yyyy-MM-dd HH:mm:ss\" value=\"${currentTimeStamp}\"/> <br/>
显示：$12.00
<fmt:formatNumber value=\"12\" type=\"currency\" pattern=\"$.00\"/> <br/>
显示：$12.0
<fmt:formatNumber value=\"12\" type=\"currency\" pattern=\"$.#\"/> <br/>
￥12.0
<fmt:formatNumber value=\"12\" type=\"currency\" pattern=\"￥.00\"/> <br/>
12.00元
<fmt:formatNumber value=\"12\" type=\"currency\" pattern=\"#0.00元\"/> <br/>
￥12.00
<fmt:formatNumber value=\"12\" type=\"currency\"/> (那个货币的符号和当前web服务器的 local 设定有关)<br/>

123456.79
<fmt:formatNumber value=\"123456.7891\" pattern=\"#0.00\"/> <br/>
123,456.79
<fmt:formatNumber value=\"123456.7891\" pattern=\"#,#00.00\"/> <br/>
.79
<fmt:formatNumber value=\"0.7891\" pattern=\"#.00\"/> <br/>
12.34%
<fmt:formatNumber value=\"0.1234\" type=\"percent\" pattern=\"#0.00%\"/><br/>
1,200%
<fmt:formatNumber value=\"12\" type=\"percent\" /><br/>
1200.00%
<fmt:formatNumber value=\"12\" type=\"percent\" pattern=\"#0.00%\"/><br/>