?? travelagencyservlet.java
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package com.oyc.mapxtreme.servlet;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.mapinfo.dp.Attribute;
import com.mapinfo.dp.Feature;
import com.mapinfo.mapj.MapJ;
import com.mapinfo.util.DoublePoint;
import com.oyc.mapxtreme.dao.TravelAgencyDAO;
import com.oyc.mapxtreme.util.MapSearch;
import com.oyc.mapxtreme.util.RenderMap;
import com.oyc.wakeup.Session;
/**
* 旅行社查找及顯示
* @author 三峽大學理學院 歐陽超
*
*/
public class TravelAgencyServlet extends BaseHttpServlet {
/**
* 從數據庫中搜尋與關鍵字匹配的旅行社
*
*/
public void searchTravelAgency(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//取出頁面傳來的旅行社名稱關鍵字
String taName = request.getParameter("taName");
//創建DAO
Session sess = super.getWakeupSession();
TravelAgencyDAO dao = new TravelAgencyDAO(sess);
List list = dao.searchTravelByName(taName);
sess.close();
//總數
int count = 0;
if(list != null){
count = list.size();
}
request.removeAttribute("taCount");
request.removeAttribute("taList");
request.setAttribute("taCount", count+"");
request.setAttribute("taList", list);
String url = "travelList.jsp";
super.forward(url, request, response);
}
/**
* 在地圖上顯示某個旅行社
*
*/
public void showTravelAgency(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//取得頁面傳來的旅行社ID
int taID = Integer.parseInt(request.getParameter("taID"));
//取出地圖對象
MapJ myMap = (MapJ) request.getSession().getAttribute("mapj");
//搜索
MapSearch mapSrh = new MapSearch();
try {
Feature feature = mapSrh.searchByAttribute(myMap, "旅行社", "taID", new Attribute(taID), null);
//重置重心
DoublePoint center = feature.getGeometry().getBounds().center();
myMap.setCenter(center);
} catch (Exception e) {
e.printStackTrace();
}
//渲染,輸出地圖
try {
RenderMap render = new RenderMap();
render.renderMap(myMap, response);
} catch (Exception e) {
e.printStackTrace();
}
}
}
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