使用静态类实现JSP自定义标签

<% ... @ 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);
    }
}