JSP带有属性的自定义标签

1. 新建HelloWelTag类


2. 如何添加jsp-api.jar包


3. HelloWelTag类详细代码 ``` package bid.zhazhapan.fims.tag;

   import java.io.IOException;

   import javax.servlet.jsp.JspException;
   import javax.servlet.jsp.tagext.TagSupport;

   public class HelloWelTag extends TagSupport {
   private String name;// 定义对应标签的属性

   // 通过set方法从页面获得name的属性值
   public void setName(String name) {
   	this.name = name;
   }
   
   // 覆盖doEndTag()方法
   public int doEndTag() throws JspException {
   	try {
   		// 通过pageContext对象获得页面隐式对象out，向客户端输出结果
   		pageContext.getOut().write("Welcome " + name);
   	} catch (IOException e) {
   		e.printStackTrace();
   		new JspException("IO Error" + e.getMessage());
   	}
   	return this.EVAL_PAGE;
   }
   

   }

   </li>
   <li><strong><a href="http://blog.csdn.net/qq_26954773/article/details/60332169">如何配置xml</a></strong></li>
   

   <javaee:taglib version="2.1" xmlns:javaee="http://java.sun.com/xml/ns/javaee" xmlns:xml="http://www.w3.org/XML/1998/namespace" 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 ">
   javaee:tlib-version1.0</javaee:tlib-version>
   javaee:short-namedemo</javaee:short-name>
   javaee:uri/demo</javaee:uri>
   javaee:tag
   javaee:namewelcome</javaee:name>
   javaee:tag-classbid.zhazhapan.fims.tag.HelloWelTag</javaee:tag-class>
   javaee:body-contentempty</javaee:body-content>
   javaee:attribute
   javaee:namename</javaee:name>
   javaee:requiredtrue</javaee:required>
   javaee:rtexprvaluetrue</javaee:rtexprvalue>
   </javaee:attribute>
   </javaee:tag>
   </javaee:taglib>

   </li>
   <li><strong>新建test.jsp来测试标签</strong>
   

   <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
   pageEncoding="ISO-8859-1"%>
   <%@ taglib uri="WEB-INF/tlds/mytag.tld" prefix="mytag" %>

   " /> ```