jstl自定义标签

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1、引入jstl.jar

<!-- JSTL标签类 --><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency>

2、自定义标签处理类

package com.loan.security.web.taglib;import java.util.List;import org.springframework.web.bind.annotation.ResponseBody;import com.loan.security.entity.Dictionary;import com.loan.security.service.DictionaryService;import com.loan.security.spring.SpringUtils;public class DictionaryFunction {private static DictionaryService dictionaryService;public static @ResponseBody List<Dictionary> getDictionarysByCode(String code) {Dictionary dic=new Dictionary();dic.setCode(code);return getDictionaryService().find(dic);}public static DictionaryService getDictionaryService() {if(dictionaryService == null) {dictionaryService = SpringUtils.getBean(DictionaryService.class);}return dictionaryService;}}

3、标签库描述文件（TLD）

<?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>    <function>        <description>根据code查询字典列表</description>        <name>getDictionarysByCode</name>        <function-class>com.loan.security.web.taglib.DictionaryFunction</function-class>        <function-signature>java.util.List getDictionarysByCode(java.lang.String)</function-signature>    </function></taglib>

4、jsp中引入并使用自定义标签

<%@ page contentType="text/html;charset=UTF-8" language="java"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%><%@ taglib prefix="dictionary"uri="/WEB-INF/tld/dictionary_function.tld"%><%@taglib prefix="shiro" uri="http://shiro.apache.org/tags"%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="X-UA-Compatible" content="IE=edge" /><title></title><script type="text/javascript"src="${pageContext.request.contextPath}/static/common/easy-ui/js/jquery.min.js"></script></head><body style="margin: 0px; padding: 0px; height: 100%; font-family: 微软雅黑;"><div style="padding: 10px;"><label style="width: 15%">类型：</label> <select style="width: 30%" name="type" class="easyui-combobox" required="true"><c:forEach items="${dictionary:getDictionarysByCode('0003')}" var="dic"><option value="${dic.name}">${dic.name}</option></c:forEach></select> </div></body></html>

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