java实现根据经纬度查询附近，比如附近团购 附近美食等。。

  package com.lwz.wx.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.io.IOException; 
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import com.lwz.wx.bean.ReLocation;
import com.thoughtworks.xstream.XStream;


// 根据发过来的经纬度查询附近的酒店，营业部等等
public class GetLocationMessage {

//public String[] ss =new  String[10];
public List<ReLocation> locs=new ArrayList<ReLocation>();

public String palceRequestUrl(String query,String lat,String lng) throws UnsupportedEncodingException { 
  
String url = "http://api.map.baidu.com/place/v2/search?"+ "query=" + URLEncoder.encode(query,"UTF-8")+ "&ak=" 
           + "百度申请KEY"+"&location="+lat+","+lng +"&radius=1500"+"&output="+"json";  //
return url;
}

      //发起请求获取信息

public List<ReLocation> getPalace(String query,String lat,String lng) throws Exception{ 
  String url = palceRequestUrl(query,lat,lng); 
   URL outurl=null;
   String inputline="";
String info="";
outurl=new URL(url);
   HttpURLConnection conn=(HttpURLConnection) outurl.openConnection();
conn.setRequestMethod("GET");
InputStreamReader inReader=new InputStreamReader(conn.getInputStream(),"UTF-8");
BufferedReader bufferedReader=new BufferedReader(inReader);
while((inputline=bufferedReader.readLine())!=null){
info+=inputline;
}
  JSONObject jsonObj = JSONObject.fromObject(info);
       String status = jsonObj.getString("status");
       String results = jsonObj.getString("results");
       JSONArray jsonArray3 = JSONArray.fromObject(results);//results
          String[]ss=new String[jsonArray3.size()];
          for(int i=0; i< jsonArray3.size();i++){
      ss[i]=jsonArray3.getString(i); 
          
          }
       for(int i=0;i<ss.length;i++){
      JSONObject jsonObj4 = JSONObject.fromObject(ss[i]);  
      if(jsonObj4.getString("address")!=null){
      ReLocation loc=new ReLocation();
      loc.setAddress(jsonObj4.getString("address"));    
      loc.setName(jsonObj4.getString("name"));
       loc.setLocation(jsonObj4.getString("location"));
       locs.add(loc);
       
      }
       }
         
     return locs;
    }

    

public String  runxx(String query,String inlat,String inlng){
GetLocationMessage test=new GetLocationMessage();
 String name="";
 String lat="";
 String lng="";
 StringBuffer buff=new StringBuffer();
try {
List<ReLocation> aa= test.getPalace(query,inlat,inlng);
  for (ReLocation reloca : aa){
JSONObject jsonObj = JSONObject.fromObject(reloca.getLocation() );
   name= reloca.getName();
   String address=reloca.getAddress();
       lat = jsonObj.getString("lat");
       lng = jsonObj.getString("lng");             
       buff.append(name+"@"+lat+"@"+lng+"@"+address).append("#").append("\n");
}
 
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//System.out.println(buff.toString());
return buff.toString();
}




public static void main(String[] args) throws IOException {
GetLocationMessage test=new GetLocationMessage();
System.out.println(test.runxx("酒楼", "26.113909", "119.268723"));
String[] ss=test.runxx("团购", "26.110846", "119.268723").split("#");
 

}//主函数测试。

}