indexservlet.java

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package com.yxq.servlet;

import java.io.IOException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.yxq.dao.ArticleDao;
import com.yxq.dao.ArticleTypeDao;
import com.yxq.dao.FriendDao;
import com.yxq.dao.LogonDao;
import com.yxq.dao.PhotoDao;
import com.yxq.dao.WordDao;
import com.yxq.valuebean.MasterBean;

public class IndexServlet extends HttpServlet
{
	private static final long serialVersionUID = 1L;
	private static MasterBean masterBean;

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		HttpSession session = request.getSession();
		ArticleDao articleDao = new ArticleDao();
		ArticleTypeDao artTypeDao = new ArticleTypeDao();
		PhotoDao photoDao = new PhotoDao();
		WordDao wordDao = new WordDao();
		FriendDao friendDao = new FriendDao();

		/** ******** 获取在主页面的内容显示区中显示的内容 ******** */
		// 从tb_article数据表中获取前3篇文章
		List<?> articleList = articleDao.queryArticle(-1, null);
		request.setAttribute("articleList", articleList);
		
		// 从tb_photo数据表中获取前8张照片
		List<?> photoList = photoDao.queryPhoto("sub");
		request.setAttribute("photoList", photoList);

		/** ******** 获取在页面侧栏中显示的内容 ******** */
		/* 从tb_word数据表中获取前5条留言 */
		List<?> wordList = wordDao.queryWord("sub");
		session.setAttribute("wordList", wordList);
		
		/* 从tb_article数据表中获取前5章推荐文章 */
		List<?> artTJList = articleDao.queryArticle(4, "sub");
		session.setAttribute("artTJList", artTJList);
		
		/* 从tb_friend数据表中获取前5位好友信息 */
		List<?> friendList = friendDao.queryFriend("sub");
		session.setAttribute("friendList", friendList);

		/** ******** 获取文章类别 ****************** */
		/* 从tb_articleType数据表中获取文章类别 */
		List<?> artTypeList = artTypeDao.queryTypeList();
		session.setAttribute("artTypeList", artTypeList);

		/** ********* 保存博主信息 **************** */
		session.setAttribute("master", masterBean);

		RequestDispatcher rd = request
				.getRequestDispatcher("/front/FrontIndex.jsp");
		rd.forward(request, response);
	}

	static
	{
		LogonDao logonDao = new LogonDao();
		masterBean = logonDao.getMaster();
	}
}