使用Maven工件，
org.json:json我得到了以下代码，我认为这很短。尽可能短，但仍然可用。
package so4308554;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.Reader;import java.net.URL;import java.nio.charset.Charset;import org.json.JSONException;import org.json.JSONObject;public class JsonReader { private static String readAll(Reader rd) throws IOException { StringBuilder sb = new StringBuilder(); int cp; while ((cp = rd.read()) != -1) { sb.append((char) cp); } return sb.toString(); } public static JSonObject readJsonFromUrl(String url) throws IOException, JSonException { InputStream is = new URL(url).openStream(); try { BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8"))); String jsonText = readAll(rd); JSonObject json = new JSonObject(jsonText); return json; } finally { is.close(); } } public static void main(String[] args) throws IOException, JSonException { JSonObject json = readJsonFromUrl("https://graph.facebook.com/19292868552"); System.out.println(json.toString()); System.out.println(json.get("id")); }}
