dataprovider.java

MapXtreme 用于电子地图制作与分析

package barchant;

import java.lang.*;
import java.util.*;
import java.awt.*;
import com.mapinfo.mapj.*;
import javax.swing.*;
import com.mapinfo.beans.vmapj.VisualMapJ;
//以下包是用于数据库oracle的DataProvider
import com.mapinfo.dp.jdbc.oraso.*;
import com.mapinfo.dp.jdbc.DriverType;
import com.mapinfo.dp.RenditionType;
import com.mapinfo.coordsys.CoordSys;
import com.mapinfo.mapxtreme.client.MapXtremeDataProviderRef;


/**
 该实例显示了怎样将数据库中的地图表作为图层显示出来
 */

public class DataProvider extends JFrame {

  public FeatureLayer world;//Feature对象用来访问地图对象
  public ArrayList cols;
  public VisualMapJ myMap;//可管理地图集的各种状态，并向服务器转发客户请求
  public Hashtable ht;
  public DataProvider() {
    try{
      //创建地图
      myMap=new VisualMapJ();

//以下代码是数据库连接实例

     String mapXtremeURL = "http://localhost:8088/mapxtreme47/mapxtreme";
     OraSoDataProviderHelper oraDPHelper=new OraSoDataProviderHelper("172.23.206.229",1521, "lk", "system", "manager",DriverType.thin, "oracle.jdbc.driver.OracleDriver");

      String[] idColumn = {"mi_prinx"};
      OraSoTableDescHelper oraTDHelper = new OraSoTableDescHelper("WORLD", false, idColumn, "geoloc", null, RenditionType.none,null, RenditionType.none, null, 2, "SYSTEM");

      String s= "select country, pop_1994, capital, geoloc, mi_prinx from world where country='Cuba'";
      //OraSoTableDescHelper oraTDHelper = new OraSoTableDescHelper(s, idColumn, "geoloc", null,RenditionType.none, null, RenditionType.none,CoordSys.longLatWGS84, 2);
      MapXtremeDataProviderRef mxtDPRef = new MapXtremeDataProviderRef(oraDPHelper, mapXtremeURL);
      myMap.getMapJ().getLayers().addLayer(mxtDPRef, oraTDHelper, "Oracle Spatial Layer");


      //布局
      this.setSize(800,500);
      //地图放中间
      this.getContentPane().add(myMap,BorderLayout.CENTER);
      this.setVisible(true);
      this.show();



    }catch(Exception e){
      System.out.println("Error");
      e.printStackTrace();
    }
  }

  public static void main(String args[]){
    DataProvider dp=new DataProvider();
  }
}