el自定义方法tld文件

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1、先写一个java类

package com.myTest;public class Tlds {/** * 必须是静态方法 * @author yms * @return 字符串 */public static String getStr(){return "hello tlds";}}

2、再写一个tld文件，路径为：WEB-INF下新建一个tlds文件夹，再新建一个fnc.tld文件

<?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>JSTL 1.1 functions library</description>  <display-name>JSTL functions sys</display-name>  <tlib-version>1.1</tlib-version>  <short-name>fnc</short-name>  <uri>http://java.sun.com/jsp/jstl/functionsc</uri>  <function>  <description>获取字符串</description>  <name>getStr</name>  <function-class>com.myTest.Tlds</function-class>  <function-signature>java.lang.String getStr()</function-signature>  <example>${fnc:getStr()}</example>  </function></taglib>

3、页面直接取

<%@ page language="java" contentType="text/html; charset=utf8"    pageEncoding="utf8"%><%@ taglib prefix="fnc" uri="/WEB-INF/tlds/fnc.tld" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf8"><title>Insert title here</title></head><body><h1>内容如下：</h1>${fnc:getStr()}</body></html>

4、工程图

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