源代码下载地址:http://www.zuidaima.com/share/1550463459052544.htm
简单易懂的自定义EL函数
tag.java</pre><p> </p><pre name="code" class="java">package com.zuidaima.tag; import java.io.IOException; import javax.servlet.jsp.JspException; import javax.servlet.jsp.JspWriter; import javax.servlet.jsp.PageContext; import javax.servlet.jsp.tagext.SimpleTagSupport; /** *@author www.zuidaima.com **/ public class MsgTag extends SimpleTagSupport{ private String info; private int qty; public MsgTag(){ System.out.println("MsgTag's constructor..."); } public void setInfo(String info) { System.out.println("setInfo..." + info); this.info = info; } public void setQty(int qty) { System.out.println("setQty..." + qty); this.qty = qty; } @Override public void doTag() throws JspException, IOException { System.out.println("doTag..."); //通过SimpleTagSupport提供的getJspContext方法 //获得PageContext。PageContext提供了获得其它 //几个隐含对象的方法。 PageContext ctx = (PageContext)getJspContext(); JspWriter out = ctx.getOut(); for(int i=0;i < qty;i++){ out.println(info + "<br/>"); } } }
原文地址:http://blog.csdn.net/springmvc_springdata/article/details/39989185