GoogleマップAPIからのJSONデータをJavaを使用して解析します。

Question

GoogleマップAPIから返されたJSONデータを解析します。私は次のコードを試しました。

import java.io.BufferedReader; 
    import java.io.InputStream; 
    import java.io.InputStreamReader; 
    import org.apache.http.HttpEntity; 
    import org.apache.http.HttpResponse; 
    import org.apache.http.client.HttpClient; 
    import org.apache.http.client.methods.HttpPost; 
    import org.apache.http.impl.client.DefaultHttpClient; 
    import org.json.simple.JSONArray; 
    import org.json.simple.JSONObject; 
    import org.json.simple.parser.JSONParser; 
    import org.json.simple.parser.ParseException; 

    public class JsonReader { 

    public static void main(String[] args) throws ParseException { 
     InputStream inputStream = null; 
     String json = ""; 
     try {   
      HttpClient client = new DefaultHttpClient(); 
      HttpPost post = new HttpPost("https://maps.googleapis.com/maps/api/geocode/json?address=10115,germany"); 
      HttpResponse response = client.execute(post); 
      HttpEntity entity = response.getEntity(); 
      inputStream = entity.getContent(); 
     } catch(Exception e) { 
     } 

     try {   
      BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream,"utf-8"),8); 
      StringBuilder sbuild = new StringBuilder(); 
      String line = null; 
      while ((line = reader.readLine()) != null) { 
       sbuild.append(line); 
      } 
      inputStream.close(); 
      json = sbuild.toString();    
     } catch(Exception e) { 
     } 


     //now parse 
     JSONParser parser = new JSONParser(); 
     Object obj = parser.parse(json); 
     JSONObject jb = (JSONObject) obj; 

     //now read 
     JSONArray jsonObject1 = (JSONArray) jb.get("results"); 
     JSONObject jsonObject2 = (JSONObject)jsonObject1.get(0); 
     JSONObject jsonObject3 = (JSONObject)jsonObject2.get("geometry"); 
     JSONObject location = (JSONObject) jsonObject3.get("location"); 

     System.out.println("Lat = "+location.get("lat")); 
     System.out.println("Lng = "+location.get("lng")); 


    } 
} 

上記のコードのソースはこの質問の回答です。これを解決する方法 Parse Json array from google maps api in Java

I tried this code and it's showing me this exception

？

Answer 1

例外に基づいてapache-commons依存関係を追加します。