Example usage for java.net HttpURLConnection connect

Introduction

In this page you can find the example usage for java.net HttpURLConnection connect.

Prototype

public abstract void connect() throws IOException;

Source Link

Document

Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.

Usage

From source file:com.gliffy.restunit.http.JavaHttp.java

/** Performs an HTTP GET.
 * @param request the request describing the GET.
 * @return a response//w ww .j a v a2 s. c  o  m
 * @throws IOException if HttpURLConnection generated an IO Exception
 */
public HttpResponse get(HttpRequest request) throws IOException {
    HttpURLConnection connection = getConnection(request);
    connection.setRequestMethod("GET");
    connection.connect();
    HttpResponse response = createResponse(connection);
    connection.disconnect();
    return response;
}

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From source file:com.gliffy.restunit.http.JavaHttp.java

/** Performs an HTTP HEAD. 
 * @param request the request describing the HEAD.
 * @return a response/*ww w . j  a va  2s . c o  m*/
 * @throws IOException if HttpURLConnection generated an IO Exception
 */
public HttpResponse head(HttpRequest request) throws IOException {
    HttpURLConnection connection = getConnection(request);
    connection.setRequestMethod("HEAD");
    connection.connect();
    HttpResponse response = createResponse(connection);
    connection.disconnect();
    return response;
}

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From source file:piuk.MyRemoteWallet.java

private static String fetchURL(String URL) throws Exception {

    if (URL.indexOf("?") > 0) {
        URL += "&api_code=" + getApiCode();
    } else {//from  w  w w.  j  a  va  2  s  .c  o  m
        URL += "?api_code=" + getApiCode();
    }

    URL url = new URL(URL);

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

    try {
        connection.setRequestProperty("Accept", "application/json");
        connection.setRequestProperty("charset", "utf-8");
        connection.setRequestMethod("GET");

        connection.setConnectTimeout(180000);
        connection.setReadTimeout(180000);

        connection.setInstanceFollowRedirects(false);

        connection.connect();

        if (connection.getResponseCode() == 200)
            return IOUtils.toString(connection.getInputStream(), "UTF-8");
        else if (connection.getResponseCode() == 500)
            throw new Exception("Error From Server: " + IOUtils.toString(connection.getErrorStream(), "UTF-8"));
        else
            throw new Exception("Unknown response from server (" + connection.getResponseCode() + ") "
                    + IOUtils.toString(connection.getErrorStream(), "UTF-8"));

    } finally {
        connection.disconnect();
    }
}

---

From source file:com.gliffy.restunit.http.JavaHttp.java

/** Performs an HTTP DELETE. 
 * @param request the request describing the DELETE.
 * @return a response//from w  w w .jav  a 2  s  .  co m
 * @throws IOException if HttpURLConnection generated an IO Exception
 */
public HttpResponse delete(HttpRequest request) throws IOException {
    HttpURLConnection connection = getConnection(request);
    connection.setRequestMethod("DELETE");
    connection.connect();
    HttpResponse response = createResponse(connection);
    connection.disconnect();
    return response;
}

---

From source file:weatherRoute.MapHandler.java

public void testing() {
    //replace these with input values
    String origin = "Boise";
    String destination = "Rexburg";

    String apiQuery = "https://maps.googleapis.com/maps/api/directions/json?origin=" + origin + "&destination="
            + destination + "&key=AIzaSyDbWBUUbN6UHlG9auqFVGmN6WJY9HSe8YI";

    try {//from  w w  w . jav  a 2 s.  c o  m
        URL url = new URL(apiQuery);
        HttpURLConnection request = (HttpURLConnection) url.openConnection();
        request.connect();

        JsonParser jp = new JsonParser();
        JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent()));

        //You have to step through the ugly, JSON within array within JSON stuff.
        JsonArray stepsArray = root.getAsJsonObject().getAsJsonArray("routes").get(0).getAsJsonObject()
                .getAsJsonArray("legs").get(0).getAsJsonObject().getAsJsonArray("steps");

        //loop through steps to get city locations
        for (JsonElement element : stepsArray) {
            //this gets a string value of the distance in miles
            String distance = element.getAsJsonObject().get("distance").getAsJsonObject().get("text")
                    .toString();

            //parse return value and cast to a Double to be able to compare
            distance = distance.replace(" mi", "");
            distance = distance.replace("\"", "");
            Double test = Double.parseDouble(distance);

            //this limits out all the short .5 mile steps
            //should mostly get different cities now
            if (Double.compare(test, 10.0) > 0) {
                System.out.println("TEST DISTANCE: " + distance + ", " + test);

                JsonObject location = element.getAsJsonObject().get("end_location").getAsJsonObject();
                String latitude = location.get("lat").toString();
                String longitude = location.get("lng").toString();

                //now I need to hit a different API and get CITY names from lat long
                //http://stackoverflow.com/questions/6548504/how-can-i-get-city-name-from-a-latitude-and-longitude-point
                //fortunately it shows me how here ^

                System.out.println("TEST LOCATION LAT: " + latitude + " LONG: " + longitude);
            }
        }

    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
}

---

From source file:org.csware.ee.utils.Tools.java

public static String getSessionID(String path) {
    String[] sessionId = null;/*  w  w w .j a  v a  2s.co  m*/
    try {
        // URL
        URL url = new URL(path);
        // HttpURLConnection
        HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
        String session_value = urlConn.getHeaderField("Set-Cookie");
        sessionId = session_value.split(";");
        // 
        urlConn.setConnectTimeout(5 * 1000);
        // 
        urlConn.connect();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return sessionId[0];
}

---

From source file:net.ae97.pokebot.extensions.scrolls.StatCommand.java

@Override
public void runEvent(CommandEvent event) {
    try {/* w  ww  .j  a  v a2 s.  co  m*/
        List<String> lines = new LinkedList<>();
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setRequestProperty("User-Agent", "PokeBot - " + PokeBot.VERSION);
        conn.connect();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
            String line;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        }
        JsonParser parser = new JsonParser();
        JsonElement element = parser.parse(StringUtils.join(lines, "\n"));
        JsonObject obj = element.getAsJsonObject();
        JsonObject dataObject = obj.get("data").getAsJsonObject();

        StringBuilder builder = new StringBuilder();
        builder.append("Stats - ");
        builder.append("Online today: ").append(dataObject.get("onlinetoday").getAsInt());
        builder.append(" - ");
        builder.append("Gold earned: ").append(dataObject.get("goldearned").getAsInt());
        builder.append(" - ");
        builder.append("Games played: ").append(dataObject.get("gamesplayed").getAsInt());
        builder.append(" - ");
        builder.append("Total users: ").append(dataObject.get("totalusers").getAsInt());
        String message = builder.toString();
        event.respond(message);
    } catch (IOException | JsonSyntaxException ex) {
        PokeBot.getLogger().log(Level.SEVERE, "Error on getting stats for Scrolls", ex);
        event.respond("Error on getting stats: " + ex.getLocalizedMessage());
    }
}

---

From source file:h2weibo.utils.filters.FlickrImageFilter.java

private String extraceFromShortURL(String input) {
    Pattern p = Pattern.compile("flic.kr/p/(\\w+)/?.*");
    Matcher m = p.matcher(input);
    if (m.find()) {
        input = "http://www.flickr.com/photo.gne?short=" + m.group(1);

        String imageUrl = null;//from   w  w  w . j a va 2 s .com
        try {
            URL url = new URL(input);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setInstanceFollowRedirects(false);
            conn.connect();
            int code = conn.getResponseCode();
            if (code == 302) {
                String loc = conn.getHeaderField("location");
                imageUrl = extraceFromFullURL("http://www.flickr.com" + loc);
            }
            conn.disconnect();
        } catch (Exception e) {
            log.error("Not able to handle flickr's short url/", e);
        }
        return imageUrl;
    } else {
        return null;
    }
}

---

From source file:io.mingle.v1.Connection.java

public Response run(String comprehension) {
    String expr = "{ \"query\": \"" + comprehension + "\", \"limit\": 10000 }";
    try {// w w  w  .jav  a2 s . co  m
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoInput(true);
        conn.setDoOutput(true);

        conn.connect();

        OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream());
        out.write(expr, 0, expr.length());
        out.flush();
        out.close();

        InputStream in = conn.getInputStream();
        ByteArrayOutputStream buf = new ByteArrayOutputStream();
        byte[] chunk = new byte[4096];
        int read = 0;
        while ((read = in.read(chunk)) > 0) {
            buf.write(chunk, 0, read);
        }
        in.close();

        String str = buf.toString();
        System.out.println("GOT JSON: " + str);
        return new Response(JSONValue.parse(str));
    } catch (Exception e) {
        System.err.printf("failed to execute: %s\n", expr);
        e.printStackTrace();
    }

    return null;
}

---

From source file:weatherRoute.MapHandler.java

public ArrayList<Location> getCities(String origin, String destination) {
    ArrayList<Location> cities = new ArrayList<Location>();

    origin = origin.replace(" ", "");
    destination = destination.replace(" ", "");

    String apiQuery = "https://maps.googleapis.com/maps/api/directions/json?origin=" + origin + "&destination="
            + destination + "&key=AIzaSyDbWBUUbN6UHlG9auqFVGmN6WJY9HSe8YI";

    try {//from   w w  w  . ja  va2s.  c  o m
        URL url = new URL(apiQuery);
        HttpURLConnection request = (HttpURLConnection) url.openConnection();
        request.connect();

        JsonParser jp = new JsonParser();
        JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent()));

        //You have to step through the ugly, JSON within array within JSON stuff.
        JsonArray stepsArray = root.getAsJsonObject().getAsJsonArray("routes").get(0).getAsJsonObject()
                .getAsJsonArray("legs").get(0).getAsJsonObject().getAsJsonArray("steps");

        //loop through steps to get city locations
        for (JsonElement element : stepsArray) {
            //this gets a string value of the distance in miles
            String distance = element.getAsJsonObject().get("distance").getAsJsonObject().get("text")
                    .toString();

            if (distance.contains("mi")) {
                //parse return value and cast to a Double to be able to compare
                distance = distance.replace(" mi", "");
                distance = distance.replace("\"", "");
                Double test = Double.parseDouble(distance);

                //this limits out all the short .5 mile steps
                //should mostly get different cities now
                if (Double.compare(test, 10.0) > 0) {
                    System.out.println("TEST DISTANCE: " + distance + ", " + test);

                    JsonObject location = element.getAsJsonObject().get("end_location").getAsJsonObject();
                    String latitude = location.get("lat").toString();
                    String longitude = location.get("lng").toString();

                    Location tempLocation = new Location(Double.parseDouble(latitude),
                            Double.parseDouble(longitude));

                    cities.add(tempLocation);
                    //now I need to hit a different API and get CITY names from lat long
                    //http://stackoverflow.com/questions/6548504/how-can-i-get-city-name-from-a-latitude-and-longitude-point
                    //fortunately it shows me how here ^

                    //System.out.println("TEST LOCATION LAT: " + latitude + " LONG: " + longitude);
                }
            }
        }
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }

    //testing();

    return cities;
}

---

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