detailaction.java

相关新闻浏览,把相关的新闻列表显示.Java实现

package news;

import java.io.IOException;

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

public final class DetailAction extends HttpServlet {
	protected void service(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		req.setCharacterEncoding("GBK");
		int newsId = Integer.parseInt(req.getParameter("newsId"));

		HttpSession session = req.getSession();
		News news = new News();

		DB db = new DB();
		try {
			news = News.GetDetail(db, newsId, false);
		} catch (Exception e) {
			e.printStackTrace();
		}

		session.setAttribute(Constants.NEWS_DETAIL_KEY, news);

		if (news.keyword != null || news.keyword != "") {
			try {
				session.setAttribute(Constants.NEWS_LIST_KEY, News
						.SearchRelativeNews(db, newsId, news.keyword));
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

		db.close();
		String target = "newsContent.jsp";
		resp.sendRedirect(target);
	}

}