自定义标签库描述符-tld

<?xml version=”1.0” encoding=”ISO-8859-1” ?>

<!DOCTYPE taglib PUBLIC “-//Sun Microsystems,Inc.//DTD JSP Tag Library 1.2//EN”

  http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd>

<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>testTag</shortname>
 
<tag>
<name>test</name>
<tagclass>cn.bluewind.mis.auth.TestTag</tagclass>
<bodycontent>empty</bodycontent>

<attribute>
<name>roleId</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>

rtexprvale-决定该属性值是否可从表达式获取