1 <tag> 2         <name>helloWorld2</name> 3         <tag-class>com.java1234.tag.HelloWorldTag2</tag-class> 4         <body-content>empty</body-content> 5         <attribute> 6             <name>name</name>//带有name 7             <required>true</required>//为了在页面 8             <rtexprvalue>true</rtexprvalue> 9         </attribute>10     </tag>

 1 package com.java1234.tag;  2  3 import java.io.IOException;  4  5 import javax.servlet.jsp.JspException;  6 import javax.servlet.jsp.JspWriter;  7 import javax.servlet.jsp.tagext.TagSupport;  8 public class HelloWorldTag2 extends TagSupport{  9     private String name;//定义name属性 10     // set & get 方法11     public String getName() { 12         return name; 13     } 14     public void setName(String name) { 15         this.name = name; 16     } 17     18     19     private static final long serialVersionUID = 1L; 20     @Override 21     public int doStartTag() throws JspException { 22         JspWriter out=this.pageContext.getOut(); 23         try { 

                    

                        
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