package com.lgx8.gateway.news.servlet;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import com.lgx8.common.PageList;
import com.lgx8.gateway.service.IGatewayService;
import com.lgx8.management.entities.News;
import freemarker.template.Template;
import freemarker.template.TemplateException;
/**
* Servlet implementation class NewsMainServlet
*/
public class NewsMainServlet extends NewsBaseServlet {
private static final long serialVersionUID = 1L;
/**
* @see NewsBaseServlet#NewsBaseServlet()
*/
public NewsMainServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String type = request.getParameter("type");
if(type==null||"".equals(type)) {
type = "main";
}
Template temp = getConfiguration().getTemplate("news/"+type+".ftl");
Map<Object, Object> root = new HashMap<Object, Object>();
root.putAll(base);
ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
IGatewayService gatewayService = (IGatewayService) ac.getBean("gatewayService");
String newsType = request.getParameter("newsType");
root.put("newsType", newsType);
String newsName = "新闻中心";
if("1".equals(newsType)||newsType==null)
{
newsName = "新闻中心";
}else if("2".equals(newsType))
{
newsName = "公告中心";
}else if("3".equals(newsType))
{
newsName = "新手上路";
}
root.put("newsName", newsName);
if("main".equals(type))
{
String newsId = request.getParameter("newsId");
News news = gatewayService.findById(Integer.parseInt(newsId));
root.put("news", news);
News upnews = gatewayService.findUpNewsByCurrId(newsType, Integer.parseInt(newsId));
root.put("upnews", upnews);
News downnews = gatewayService.findDownNewsByCurrId(newsType, Integer.parseInt(newsId));
root.put("downnews", downnews);
}else
{
String pageno = request.getParameter("pageno");
//处理当前页
if(pageno==null) {
pageno = "1";
}
int pagenum = 1;
try {
pagenum = Integer.parseInt(pageno);
} catch (Exception e1) {
pagenum = 1;
}
int pageSize = 15;
PageList pageList = gatewayService.findNewsByConditions(newsType, null, pagenum, pageSize);
if(pageList!=null&&pageList.getDataList()!=null)
{
root.put("pageList", pageList);
}
}
/* 将模板和数据模型合并 */
Writer out = response.getWriter();
try {
temp.process(root, out);
} catch (TemplateException e) {
e.printStackTrace();
}
out.flush();
}
}