使用静态类实现JSP自定义标签

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);


}


}