newsaction.java

来自「一个用自己写的新闻系统(Struts) ,比较简单」· Java 代码 · 共 73 行

package com.weipure.struts.action;

import java.util.List;

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.apache.struts.actions.DispatchAction;

import com.weipure.struts.dao.NewsDAO;
import com.weipure.struts.form.NewsForm;

public class NewsAction extends DispatchAction {
	
	public ActionForward add(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		System.out.println("in add");
		NewsForm nf = (NewsForm) form;
		NewsDAO dao = new NewsDAO();
		dao.add(nf);
		NewsDAO news = new NewsDAO();
		List newsList = news.queryAll();
		request.getSession().setAttribute("newsList", newsList);
		return mapping.findForward("main");
	}

	public ActionForward delete(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		//System.out.println("in delete");
		NewsDAO dao = new NewsDAO();
		String id = request.getParameter("id");
		System.out.println(id);		
		dao.del(id);
		NewsDAO news = new NewsDAO();
		List newsList = news.queryAll();
		request.getSession().setAttribute("newsList", newsList);
		return mapping.findForward("main");
	}
	
	public ActionForward show(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		String method2 = request.getParameter("method2");
		System.out.println("in show");
		String id = request.getParameter("id");
		System.out.println(request.getParameter("id"));
		String sql = "select * from news where newsid ='"+id+"'";
		NewsDAO dao = new NewsDAO();
		List showList = dao.query(sql);
		request.getSession().setAttribute("showList", showList);
		if(method2.equals("content")){
			return mapping.findForward("content");
		}
		if(method2.equals("modify")){
			return mapping.findForward("modify");
		}
		return null;
	}
	public ActionForward modify(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		System.out.println("in modify");
		NewsForm nf = (NewsForm) form;
		NewsDAO dao = new NewsDAO();
		String id = nf.getId();
		System.out.println(id);
		dao.modify(nf,id);
		NewsDAO news = new NewsDAO();
		List newsList = news.queryAll();
		request.getSession().setAttribute("newsList", newsList);
		return mapping.findForward("main");
	}
}