注意，实现的方法必须是静态的
<% ... @ taglib uri="http://hxex.cn/vote" prefix="vote" %> < c:forEach var ="vote" items ="${votes}" > < tr > < td > ${vote.name} </ td > < td > ${vote.title} </ td > < td > ${vote:votetype(vote.votetype)} </ td > < td > ${vote:pictype(vote.pictype)} </ td > < td align ="center" > < a href ="vote_update.jsp?id=${vote.id}" > 修改投票 </ a > < a href ="<%=context %>/deleteVote.do?id=${vote.id}" > 删除投票 </ a > < a href ="voteitem_updatein.jsp?id=${vote.id}" > 修改选项 </ a > </ td > </ tr > </ c:forEach ><?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>vote function library</description> <display-name>Vote</display-name> <tlib-version> 1.0 </tlib-version> <short-name>vote</short-name> <uri>http://hxex.cn/vote</uri> <function> <name>votetype</name> <function-class>cn.hxex.vote.util.VoteFunction</function-class> <function-signature>java.lang.String votetype(java.lang.String)</function-signature> </function> <function> <name>pictype</name> <function-class>cn.hxex.vote.util.VoteFunction</function-class> <function-signature>java.lang.String pictype(java.lang.String)</function-signature> </function> <function> <name>votetypeoptions</name> <function-class>cn.hxex.vote.util.VoteFunction</function-class> <function-signature>java.lang.String votetypeoptions(java.lang.String)</function-signature> </function> <function> <name>pictypeoptions</name> <function-class>cn.hxex.vote.util.VoteFunction</function-class> <function-signature>java.lang.String pictypeoptions(java.lang.String)</function-signature> </function> </taglib>
package cn.hxex.vote.util; public class VoteFunction ... { public static String votetype(String votetype)...{ return SelectConst.getVoteTypeTitle(votetype); } public static String votetypeoptions(String defaultValue)...{ return SelectConst.getVoteTypeOptions(defaultValue); } public static String pictype(String pictype)...{ return SelectConst.getPicTypeTitle(pictype); } public static String pictypeoptions(String defaultValue)...{ return SelectConst.getPicTypeoptions(defaultValue); }}
