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2025/2/26 7:46:36 来源：https://blog.csdn.net/xiaoyustudiowww/article/details/145850180 浏览: 次关键词：wap建站系统_网站页面设计图片素材_外贸网站平台_国际新闻网

============java文件，包名org.rain.tag

package org.rain.tag;

import java.io.IOException;

import java.util.HashMap;

import java.util.Map;

import javax.servlet.jsp.JspException;

import javax.servlet.jsp.tagext.DynamicAttributes;

import javax.servlet.jsp.tagext.SimpleTagSupport;

public class SmallRainDynamicTAG extends SimpleTagSupport implements DynamicAttributes {

private Map<String, Object> smallRianDynamicBeans = new HashMap<String, Object>();

@Override

public void setDynamicAttribute(String smallRainURI, String smallRainTAGName, Object smallRainTAGNameValue)

throws JspException {

smallRianDynamicBeans.put(smallRainTAGName, smallRainTAGNameValue);

}

@Override

public void doTag() throws JspException, IOException {

StringBuilder smallRainTagOut = new StringBuilder();

smallRianDynamicBeans.forEach((tagName, tagValue) ->

smallRainTagOut.append("<b>属性名：</b>" + tagName + " <b>属性值：</b>"+tagValue)

.append("<br>"));

getJspContext().getOut().print(smallRainTagOut.toString());

}

=====================TLD文件，放在WEB-INF\tld\rain.tld，名称rain.tld

<?xml version="1.0" encoding="UTF-8"?>

<taglib xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"

version="2.1">

<tlib-version>1.0</tlib-version>

<short-name>rain</short-name>

<tag>

<name>SmallRainDynamicTAG</name>

<tag-class>org.rain.tag.SmallRainDynamicTAG</tag-class>

<body-content>empty</body-content>

<dynamic-attributes>true</dynamic-attributes>

</tag>

</taglib>

=========jsp文件

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<%@ page language="java" %>

<%@ taglib uri="/web-rain/welcome.tld" prefix="rain"%>

<html>

<body>

<head>

<title>动态自定义标签属性页面</title>

</head>

<h3> 晓雨动态自定义标签属性页面</h3> 可以更改JSP标签属性和值；<br>

例如修改标签《rain:SmallRainDynamicTAG smallRainSchool="大学" smallRainHome="地址" 》<br>

添加标签属性和值 smallRainHomeSelf="中国"

<br>

<rain:SmallRainDynamicTAG smallRainSchool="大学" smallRainHome="地址"/>

</table>

</body>

</html>

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