求一非常简单的关于标签用法的例子！

Question

http://gceclub.sun.com.cn/NASApp/sme/controller/bottomresource?GXHC_JSESSIONID=2985942877024102123&cat_id=02080103里的
Using XML and JSP together 
文档有详细介绍.极之简单.

Answer 1

###DateTimeTag.java###package mytag.taglib;import java.io.IOException;
import java.util.Date;
import java.util.Calendar;import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.TagSupport;public class DateTimeTag
        extends TagSupport
{   public int doStartTag() throws JspException
   {      try
      {
         Calendar cl = Calendar.getInstance();
         cl.setTime(new Date());
         StringBuffer sb = new StringBuffer();
         sb.append(cl.get(1));
         sb.append("年");
         sb.append(cl.get(2));
         sb.append("月");
         sb.append(cl.get(5));
         sb.append("日");         pageContext.getOut().write(sb.toString());
      }
      catch (IOException ex)
      {
         throw new JspTagException(ex.getMessage());
      }
      return SKIP_BODY;
   }
}==============================================================
###mytag.tld###<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE taglib
  PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
  "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd"><taglib>
  <tlib-version>1.0</tlib-version>
  <jsp-version>1.2</jsp-version>
  <short-name>mytag</short-name>  <tag>
    <name>curDate</name>
    <tag-class>mytag.taglib.DateTimeTag</tag-class>
    <body-content>empty</body-content>
  </tag>
</taglib>==============================================================
###test.jsp###
<%@ taglib uri="/WEB-INF/mytag.tld" prefix="date" %>
...
当前日期：<wst:curDate/>

Answer 2

更正：
###test.jsp###<%@ taglib uri="/WEB-INF/mytag.tld" prefix="date" %>
...
当前日期：<date:curDate/>