package org.yeeku.action;

import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.yeeku.action.base.BaseAction;

public class LoadNewsByCategory extends BaseAction {
	// 必须重写该核心方法，该方法actionForm将表单的请求参数封装成值对象
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		Set result = null;
		String cateId = null;
		try {
			if (request.getAttribute("categoryId") == null) {
				cateId = request.getParameter("categoryId");
			} else {
				cateId = (String) request.getAttribute("categoryId");
			}
			result = mgr.getCategory(cateId).getNews();
		} catch (Exception e) {
			e.printStackTrace();
			return mapping.findForward("failure");
		}
		request.setAttribute("categoryId", cateId);
		request.setAttribute("news", result);
		return mapping.findForward("success");
	}
}