在JSP中，开发者自己如何编写Tag

 <% @ page contentType="text/html;charset=GB2312" %>
 <% ! String name ; %>
 <%  name = "北京"; %>
 <%@ taglib uri="/WEB-INF/myjar.tld" prefix="jdeveloper" %>
 

---

 

---

 
 
         源码:
         package jdeveloper.tags;
 import javax.servlet.jsp.*;
 import javax.servlet.jsp.tagext.*;
 import java.io.*;
 /**
 *
 *  @author [e-mail] jdeveloper.yeah.net
 */
 public class HelloWorldTag extends TagSupport {
  private String name = "";
  public void setName(String name){
  this.name = name;
  }
  public int doStartTag() {
  try {
   JspWriter out = pageContext.getOut();
   out.print("HelloWorld:"+ name);
  } catch(IOException ioe) {
  System.out.println("Error in ExampleTag: " + ioe);
  }
  return(SKIP_BODY);
  }
 }
--------------------next---------------------