Example usage for org.json.simple JSONObject get

Introduction

In this page you can find the example usage for org.json.simple JSONObject get.

Prototype

V get(Object key);

Source Link

Document

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

Usage

From source file:json.ReadFromFile.java

public static void main(String[] args) {

    JSONParser parser = new JSONParser();
    try {//from   w w  w  .  ja  v a  2s .  c om
        Object obj = parser.parse(new FileReader(file));
        JSONObject jsonObject = (JSONObject) obj;
        String countryName = jsonObject.get("Name") + "";//equivalent to jsonObject.get("Name").toString(); 
        System.out.println("Name of Country: " + countryName);

        long population = (long) jsonObject.get("Population");
        System.out.println("Population: " + population);

        System.out.println("Counties are:");
        JSONArray listOfCounties = (JSONArray) jsonObject.get("Counties");
        Iterator<String> iterator = listOfCounties.iterator();
        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }
    } catch (IOException | ParseException e) {
        e.printStackTrace();
    }
}

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From source file:jsonpractice.jsonpractice1.java

public static void main(String[] args) throws IOException, ParseException {
    JSONParser parser = new JSONParser();
    try {/*from   w w  w .  j  av  a 2s  .  c  o  m*/
        Object obj = parser.parse(new FileReader("C:\\Users\\user\\Documents\\CountryJSONFile.json"));
        JSONObject jsonobject = (JSONObject) obj;

        String nameOfCountry = (String) jsonobject.get("Name");
        System.out.println("Name of the Country: " + nameOfCountry);

        long population = (long) jsonobject.get("Population");
        System.out.println("Population of the country is : " + population);

        System.out.println("States are: ");
        JSONArray listOfStates = (JSONArray) jsonobject.get("states");

        Iterator<String> iterator = listOfStates.iterator();
        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }
    } catch (FileNotFoundException e) {
    } catch (IOException e) {
    } catch (ParseException e) {
    }

}

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From source file:bonapetit.ParseJson1.java

public static void main(String[] args) {
    String url = "http://freemusicarchive.org/api/get/genres.json?api_key=60BLHNQCAOUFPIBZ&limit=2";
    /*/*w w w.  jav  a  2  s . c  om*/
     * {"title":"Free Music Archive - Genres","message":"","errors":[],"total" : "161","total_pages":81,"page":1,"limit":"2",
     * "dataset":
     * [{"genre_id": "1","genre_parent_id":"38","genre_title":"Avant-Garde" ,"genre_handle": "Avant-Garde","genre_color":"#006666"},
     * {"genre_id":"2","genre_parent_id" :null,"genre_title":"International","genre_handle":"International","genre_color":"#CC3300"}]}
     */
    try {
        String genreJson = IOUtils.toString(new URL(url));
        JSONObject genreJsonObject = (JSONObject) JSONValue.parseWithException(genreJson);
        // get the title
        System.out.println(genreJsonObject.get("title"));
        // get the data
        JSONArray genreArray = (JSONArray) genreJsonObject.get("dataset");
        // get the first genre
        JSONObject firstGenre = (JSONObject) genreArray.get(0);
        System.out.println(firstGenre.get("genre_title"));
    } catch (IOException | ParseException e) {
        e.printStackTrace();
    }
}

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From source file:MyTest.ParseJson.java

public static void main(String args[]) {
    try {//  w  w w  .  jav  a 2 s.  c o m
        FileReader reader = new FileReader(
                new File("data/NGS___RNA-seq_differential_expression_analysis-v1.ga"));
        System.out.println(reader);
        JSONParser parser = new JSONParser();
        JSONObject jo = (JSONObject) parser.parse(reader);
        JSONObject jsteps = (JSONObject) jo.get("steps");

        System.out.println(jsteps.size());
        System.out.println("---------------------------------------------------");
        for (int i = 0; i < jsteps.size(); i++) {
            JSONObject jstep_detail = (JSONObject) jsteps.get(String.valueOf(i));
            getDetailInfo(jstep_detail);

        }

    } catch (FileNotFoundException ex) {
        Logger.getLogger(ParseJson.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(ParseJson.class.getName()).log(Level.SEVERE, null, ex);
    } catch (ParseException ex) {
        Logger.getLogger(ParseJson.class.getName()).log(Level.SEVERE, null, ex);
    }

}

---

From source file:app.WebSocketServer.java

public static void main(final String[] args) {
    Undertow server = Undertow.builder().addHttpListener(3030, "0.0.0.0")
            .setHandler(path().addPrefixPath("/ws", websocket(new WebSocketConnectionCallback() {
                @Override//from  w w  w .ja va2 s. c om
                public void onConnect(WebSocketHttpExchange exchange, WebSocketChannel channel) {
                    channels.add(channel);
                    channel.getReceiveSetter().set(new AbstractReceiveListener() {
                        @Override
                        protected void onFullTextMessage(WebSocketChannel channel,
                                BufferedTextMessage message) {
                            JSONObject msg = (JSONObject) JSONValue.parse(message.getData());

                            switch (msg.get("type").toString()) {
                            case "broadcast":
                                final String outbound = msg.toJSONString();
                                channels.forEach(gc -> WebSockets.sendText(outbound, gc, null));
                                msg.replace("type", "broadcastResult");
                                WebSockets.sendText(msg.toJSONString(), channel, null);
                                break;
                            case "echo":
                                WebSockets.sendText(msg.toJSONString(), channel, null);
                                break;
                            default:
                                System.out.println("Unknown message type");
                            }
                        }
                    });

                    channel.addCloseTask(new ChannelListener<WebSocketChannel>() {
                        @Override
                        public void handleEvent(WebSocketChannel channel) {
                            channels.remove(channel);
                        }
                    });
                    channel.resumeReceives();
                }
            }))).build();
    server.start();
}

---

From source file:com.aj.hangman.HangmanReq.java

public static void main(String[] args) {
    HangmanDict dictionary = new HangmanDict();

    try {//from ww w. j  a  v  a 2 s  .  co  m
        BufferedReader input = new BufferedReader(new InputStreamReader(
                new URL("http://gallows.hulu.com/play?code=gudehosa@usc.edu").openStream()));
        String info = input.readLine();
        JSONParser parser = new JSONParser();

        Object obj;
        try {
            obj = parser.parse(info);
            JSONObject retJson = (JSONObject) obj;

            TOKEN = (String) retJson.get("token");
            STATUS = (String) retJson.get("status");
            STATE = (String) retJson.get("state");
            REM = (Long) retJson.get("remaining_guesses");
            PREM = REM;
            System.out.println("State:: " + STATE);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        while ("ALIVE".equalsIgnoreCase(STATUS)) {
            // call make guess function, returns character
            guess = dictionary.makeGuess(STATE);
            System.out.println("Guessed:: " + guess);
            // call the url to update
            BufferedReader reInput = new BufferedReader(
                    new InputStreamReader(new URL("http://gallows.hulu.com/play?code=gudehosa@usc.edu"
                            + String.format("&token=%s&guess=%s", TOKEN, guess)).openStream()));

            // parse the url to get the updated value
            String reInfo = reInput.readLine();
            JSONParser reParser = new JSONParser();

            Object retObj = reParser.parse(reInfo);
            JSONObject retJson = (JSONObject) retObj;

            STATUS = (String) retJson.get("status");
            STATE = (String) retJson.get("state");
            REM = (Long) retJson.get("remaining_guesses");
            System.out.println("State:: " + STATE);
        }

        if ("DEAD".equalsIgnoreCase(STATUS)) {
            // print lost
            System.out.println("You LOOSE: DEAD");
        } else if ("FREE".equalsIgnoreCase(STATUS)) {
            // print free
            System.out.println("You WIN: FREE");
        }

    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

---

From source file:chat.jsonTest.java

/**
 * @param args the command line arguments
 *///  w  ww .  j av  a2s  .com
public static void main(String[] args) throws ParseException, IOException {
    // TODO code application logic here
    JSONParser parser = new JSONParser();
    String fullPath = "userInfo.json";
    //BufferedReader reader = new BufferedReader(new FileReader(fullPath));

    Object obj = parser.parse(new FileReader("userInfo.json"));
    JSONObject jsonObject = (JSONObject) obj;
    /*while ((line = reader.readLine()) != null) {
        System.out.println(line);
    }*/
    JSONArray lang = (JSONArray) jsonObject.get("userInfo");
    Iterator i = lang.iterator();

    // take each value from the json array separately
    while (i.hasNext()) {
        JSONObject innerObj = (JSONObject) i.next();
        System.out
                .println("username " + innerObj.get("username") + " with password " + innerObj.get("password"));
    }

}

---

From source file:com.github.artifactresolver.MavenDependencyDownloader.java

public static void main(String[] args) throws Exception {

    new MavenDependencyDownloader();

    parseCommandLine(args);/*  ww w .j  ava 2 s.com*/

    RepositorySystemHelper repoSystemHelper = new RepositorySystemHelper(localRepo);
    dependencyResolver = new DependencyResolver(repoSystemHelper);

    if (artifacts.isEmpty()) {
        JSONParser jsonParser = new JSONParser();
        FileReader fileReader = new FileReader(new File(dependencyFile));
        JSONArray jsonArray = (JSONArray) jsonParser.parse(fileReader);
        fileReader.close();

        for (Object obj : jsonArray) {
            JSONObject jsonObj = (JSONObject) obj;
            String groupId = (String) jsonObj.get("groupId");
            String artifactId = (String) jsonObj.get("artifactId");
            String classifier = (String) jsonObj.get("classifier");
            String extension = (String) jsonObj.get("extension");
            String version = (String) jsonObj.get("version");

            DefaultArtifact artifact = new DefaultArtifact(groupId, artifactId, classifier, extension, version);
            dependencyResolver.downloadDependencyTree(artifact, javadoc, sources);
        }
    } else {
        for (DefaultArtifact artifact : artifacts) {
            dependencyResolver.downloadDependencyTree(artifact, javadoc, sources);
        }
    }
    log.info("Artifacts downloaded to \"{}\". Finished. Thank you.", localRepo);
}

---

From source file:it.avalz.opendaylight.controller.examples.JsonParser.java

public static void main(String[] args) {

    String s = "{\"ids\":[\"00:00:00:00:00:00:00:01\", \"00:00:00:00:00:00:00:02\"], \"width\":200, \"height\":100}";

    JSONObject json = null;
    try {//from  www  . j a  va2  s . c o m
        json = (JSONObject) new JSONParser().parse(s);
    } catch (ParseException ex) {
        ex.printStackTrace();
    }

    System.out.println(json.get("ids"));

    JSONArray array = (JSONArray) json.get("ids");
    System.out.println(array.get(0));
    System.out.println(json.get("width"));
    System.out.println(json.get("height"));

    List<String> l = new ArrayList<String>();

    l.add("\"DROP\"");
    l.add("\"OUTPUT=2\"");
    System.out.println(l);
}

---

From source file:com.devdungeon.simplejson.DecodeJson.java

public static void main(String[] args) {

    try {//  w  w  w.jav  a2  s. com
        String jsonData = getJsonFromUrl("http://www.reddit.com/r/houston.json");

        JSONParser jsonParser = new JSONParser();
        JSONObject jsonObject = (JSONObject) jsonParser.parse(jsonData); // The whole JSON value

        //System.out.println(jsonObject);
        JSONObject data = (JSONObject) jsonObject.get("data"); // The data object
        //System.out.println(data); 

        JSONArray children = (JSONArray) data.get("children"); // All children

        // for each child in children
        // get child("data")
        for (int i = 0; i < children.size(); i++) {
            JSONObject child = (JSONObject) children.get(i);
            //System.out.println(child); // The whole post object

            JSONObject childData = (JSONObject) child.get("data");
            System.out.print(childData.get("title") + ": ");
            System.out.println(childData.get("url"));
        }

    } catch (ParseException ex) {
        ex.printStackTrace();
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }

}

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