JSP: using expressions as values to tablib attributes
i am tring to create my own taglib, and pass a jsp variable to the taglib, as an attribute value.
<%@ taglib uri="/WEB-INF/taglib.tld" prefix="custom"%>
<%String myFilter =....; %>
<custom:printAllPeople filter="<%=myFilter%>" >
</custom:printAllPeople>
the tld:
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<tag>
<name>printAllPeople</name>
<tagclass>jb.taglib.FilterPersonTagLib</tagclass>
<attribute>
<name>filter</name>
<required>true</required>
</attribute>
<info>print all people</info>
</tag>
</taglib>
and i got: org.apache.jasper.JasperException: /filterTagLib.jsp (line: 23, column: 1) According to TLD or attribute directive in tag file, attribute filter does not accept any expressions
how can i use expressions as attribute values?
您需要在您的TLD属性中使用rtexprvalue：
<attribute>
<name>filter</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>