jsp调用java方法 function taglib

<?xml version="1.0" encoding="UTF-8"?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<description>functions</description>
<tlib-version>3.0</tlib-version>
<short-name>fn</short-name>
<uri>http://mysteel.com/shiro/tags/mysteel-functions</uri> <function>
<description>根据船code显示船名称</description>
<name>shipName</name>
<function-class>com.test.system.web.taglib.Functions</function-class>
<function-signature>java.lang.String getShipName(java.lang.String)</function-signature>
</function></taglib>

package com.test.system.web.taglib;import com.portx.util.XmlReaderUtil;
import org.springframework.util.CollectionUtils;import java.util.Collection;public class Functions { public static String getShipName(String code) { return XmlReaderUtil.getValueByKey(code);
}}

<jsp-config>
<taglib>
<taglib-uri>/tags</taglib-uri>
<taglib-location>/WEB-INF/tld/datetag.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/functions</taglib-uri>
<taglib-location>/WEB-INF/tld/mysteel-functions.tld</taglib-location>
</taglib>
</jsp-config>

<%@ taglib prefix="fnc" uri="/functions" %>${fnc:shipName(item.shipCorpCd)}