optiontag.java

老牌java开发的物流管理系统 详细的我也没有怎么看 好像是恒基的

package com.fit.tag;

import java.util.Collection;
import java.util.Iterator;

import javax.servlet.jsp.tagext.TagSupport;

public class OptionTag extends TagSupport {

	/**
	 * 
	 */
	private static final long serialVersionUID = 3404015891929670900L;
	private String item;
	private Collection items;
	private Iterator it;

	public int doStartTag() {
		if (items == null) {
			return SKIP_BODY;
		}
		it = items.iterator();

		return EVAL_BODY_INCLUDE;
	}

	@Override
	public int doAfterBody() {
		if (items != null) {
			if (it.hasNext()) {
				pageContext.setAttribute(item, it.next());
				return EVAL_BODY_AGAIN;
			}
		}
		return SKIP_BODY;
	}

	public void setItem(String item) {
		this.item = item;
	}

	public void setItems(Collection items) {
		this.items = items;
	}

	
}