为了增加jsp代码的可读性尽量需要把页面html代码与java代码分开，所以了解了一下自定义标签的问题。
步骤：
实现标签处理类；编译tld文件在jsp页面中导入标签库。
package com.winston.tag
;
import javax.servlet.jsp.JspException
;
import javax.servlet.jsp.tagext.SimpleTagSupport
;
import java.io.IOException
;
/**
* @Description:自定义标签1
* @Author Winston
* @Version 1.0 2017/4/12 22:18
*/
public class CustomTag1
extends SimpleTagSupport {
@Override
public void doTag()
throws JspException
, IOException {
this.getJspContext().getOut().print(
"Hello Jsp")
;
}
}
在WEB-INF下面创建tld文件夹
<?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">
<description>customTag
</description>
<display-name>customTag
</display-name>
<tlib-version>1.0
</tlib-version>
<short-name>ct
</short-name>
<uri>/customTag
</uri>
<tag>
<name>customTag1
</name>
<tag-class>com.winston.tag.CustomTag1
</tag-class>
<body-content>empty
</body-content>
<description>my custom tag1
</description>
</tag>
</taglib>
创建jsp页面
<%--
Created by IntelliJ IDEA.
User: Winston
Date: 2017/4/12
Time: 22:26
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="ct" uri="/WEB-INF/tld/customTag.tld" %>
<html>
<head>
<title>Title
</title>
</head>
<body>
<ct:customTag1/>
</body>
</html>
项目结构
执行效果
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