从以不必要数据开头的URL中以Java读取JSON

Question

I would like to process JSON data started with an object that I don't need.

Here you have the URL:

• http://datos.santander.es/api/rest/datasets/callejero_calles.json?items=819

I have been trying to adapt next code, but I don't know how to avoid the first object (summary) and take the second one (resources).

If I want to take one by one all the data inside from each object of "resources" (for example, showing "nombre-calle", "tipo-via"...).

package leerjson;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

public class LeerJSON {

    public static void main(String[] args) throws ParseException {
        JSONParser parser = new JSONParser();

        try {        
            URL oracle = new URL("http://datos.santander.es/api/rest/datasets/callejero_calles.json?items=819"); // URL to Parse
            URLConnection yc = oracle.openConnection();
            BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));

            String inputLine; 
            in.readLine();
            while ((inputLine = in.readLine()) != null) {   
                JSONArray a = (JSONArray) parser.parse(inputLine);

                // Loop through each item
                for (Object o : a) {
                    JSONObject datos = (JSONObject) o;
                    System.out.println(datos);
                }
            }
            in.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        }  
    }  

UPDATED: Once seen Enra64's answer, I don't know how to use getJSONArray and getJSONObject because it is not a method. I have included json-simple-1.1.1.jar to my project, but it doesn't work. Thank you in advance! This is my new code:

URL oracle = new URL("http://datos.santander.es/api/rest/datasets/callejero_calles.json?items=819"); // URL to Parse
   URLConnection yc = oracle.openConnection();
   BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));

   String inputLine = in.readLine();

   JSONObject a = (JSONObject) parser.parse(inputLine);
   JSONArray resources = a.getJSONArray("resources");

   for (int i = 0; i < resources.length(); i++) {
        resources.getJSONObject(i);
   }

Answer 1

Select the resources object as follows:

JSONObject a = (JSONObject) parser.parse(inputLine);
JSONArray resources = a.getJSONArray("resources");

And then loop through it:

for (int i = 0; i < resources.length(); i++) {
  resources.getJSONObject(i);
}