countertag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.container;

import org.jahia.exceptions.JahiaException;
import org.jahia.utils.JahiaConsole;

import java.io.*;
import java.util.*;

import javax.servlet.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;


/**
 * Class CounterTag : returns the position of the enclosing container tag in a container list
 *
 * @author  Jerome Tamiotti
 */
public class CounterTag extends TagSupport {


	public int doStartTag() {

		ContainerTag container = (ContainerTag) findAncestorWithClass(this, ContainerTag.class);
		if (container == null) {
			return SKIP_BODY;
		}
		try {
			JspWriter out = pageContext.getOut();
			out.print(container.getCounter());
		} catch (IOException ioe) {
			JahiaConsole.println("CounterTag: doStartTag ", ioe.toString());
		}
		return SKIP_BODY;
	}

}