Example usage for java.net HttpURLConnection getResponseCode

Introduction

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

Prototype

public int getResponseCode() throws IOException 

Source Link

Document

Gets the status code from an HTTP response message.

Usage

From source file:com.uksf.mf.core.utility.ClassNames.java

/**
 * Checks if connection to URL can be established
 * @param url url to check//w w w  . jav  a 2 s  . c o m
 * @return connection state
 * @throws IOException error
 */
private static boolean checkConnection(URL url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("GET");
    connection.setConnectTimeout(1500);
    connection.setReadTimeout(1500);
    connection.setRequestProperty("User-Agent",
            "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)");
    connection.connect();
    return connection.getResponseCode() == 404;
}

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From source file:Main.java

/**
 * Given a string url, connects and returns response code
 *
 * @param urlString       string to fetch
 * @param readTimeOutMs       read time out
 * @param connectionTimeOutMs       connection time out
 * @param urlRedirect       should use urlRedirect
 * @param useCaches       should use cache
 * @return httpResponseCode http response code
 * @throws IOException/*w w w  .  j  ava2 s  .  c o  m*/
 */

public static int checkUrlWithOptions(String urlString, int readTimeOutMs, int connectionTimeOutMs,
        boolean urlRedirect, boolean useCaches) throws IOException {
    URL url = new URL(urlString);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setReadTimeout(readTimeOutMs /* milliseconds */);
    connection.setConnectTimeout(connectionTimeOutMs /* milliseconds */);
    connection.setRequestMethod("GET");
    connection.setInstanceFollowRedirects(urlRedirect);
    connection.setUseCaches(useCaches);
    // Starts the query
    connection.connect();
    int responseCode = connection.getResponseCode();
    connection.disconnect();
    return responseCode;
}

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From source file:io.github.retz.web.JobRequestRouter.java

public static boolean statHTTPFile(String url, String name) {
    String addr = url.replace("files/browse", "files/download") + "%2F" + maybeURLEncode(name);

    HttpURLConnection conn = null;
    try {/* ww w.  j  ava  2s.c o  m*/
        conn = (HttpURLConnection) new URL(addr).openConnection();
        conn.setRequestMethod("HEAD");
        conn.setDoOutput(false);
        LOG.debug(conn.getResponseMessage());
        return conn.getResponseCode() == 200 || conn.getResponseCode() == 204;
    } catch (IOException e) {
        LOG.debug("Failed to fetch {}: {}", addr, e.toString());
        return false;
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

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From source file:net.amigocraft.mpt.util.MiscUtil.java

public static JSONObject getRemoteIndex(String path) throws MPTException {
    try {//w  w w  .j a v a2s .  c  om
        URL url = new URL(path + (!path.endsWith("/") ? "/" : "") + "mpt.json"); // get URL object for data file
        URLConnection conn = url.openConnection();
        if (conn instanceof HttpURLConnection) {
            HttpURLConnection http = (HttpURLConnection) conn; // cast the connection
            int response = http.getResponseCode(); // get the response
            if (response >= 200 && response <= 299) { // verify the remote isn't upset at us
                InputStream is = http.getInputStream(); // open a stream to the URL
                BufferedReader reader = new BufferedReader(new InputStreamReader(is)); // get a reader
                JSONParser parser = new JSONParser(); // get a new parser
                String line;
                StringBuilder content = new StringBuilder();
                while ((line = reader.readLine()) != null)
                    content.append(line);
                JSONObject json = (JSONObject) parser.parse(content.toString()); // parse JSON object
                // vefify remote config is valid
                if (json.containsKey("packages") && json.get("packages") instanceof JSONObject) {
                    return json;
                } else
                    throw new MPTException(
                            ERROR_COLOR + "Index for repository at " + path + "is missing required elements!");
            } else {
                String error = ERROR_COLOR + "Remote returned bad response code! (" + response + ")";
                if (!http.getResponseMessage().isEmpty())
                    error += " The remote says: " + ChatColor.GRAY + ChatColor.ITALIC
                            + http.getResponseMessage();
                throw new MPTException(error);
            }
        } else
            throw new MPTException(ERROR_COLOR + "Bad protocol for URL!");
    } catch (MalformedURLException ex) {
        throw new MPTException(ERROR_COLOR + "Cannot parse URL!");
    } catch (IOException ex) {
        throw new MPTException(ERROR_COLOR + "Cannot open connection to URL!");
    } catch (ParseException ex) {
        throw new MPTException(ERROR_COLOR + "Repository index is not valid JSON!");
    }
}

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From source file:com.netflix.raigad.utils.SystemUtils.java

public static String getDataFromUrl(String url) {
    try {//from   w  w  w.  j  a  v  a2  s  . c  om
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setConnectTimeout(1000);
        conn.setReadTimeout(1000);
        conn.setRequestMethod("GET");
        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Unable to get data for URL " + url);
        }
        byte[] b = new byte[2048];
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataInputStream d = new DataInputStream((FilterInputStream) conn.getContent());
        int c = 0;
        while ((c = d.read(b, 0, b.length)) != -1)
            bos.write(b, 0, c);
        String return_ = new String(bos.toByteArray(), Charsets.UTF_8);
        logger.info("Calling URL API: {} returns: {}", url, return_);
        conn.disconnect();
        return return_;
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }

}

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From source file:net.line2soft.preambul.utils.Network.java

/**
 * Checks if a connection is possible between device and server.
 * @param address The URL to request/*from   w w w .  j  a  va  2s. c o m*/
 * @return True if the connection is possible, false else
 */
public static boolean checkConnection(URL address) {
    boolean result = false;
    try {
        HttpURLConnection urlc = (HttpURLConnection) address.openConnection();
        //urlc.setRequestProperty("User-Agent", "Android Application:"+Z.APP_VERSION);
        urlc.setRequestProperty("Connection", "close");
        urlc.setConnectTimeout(1000);
        urlc.connect();
        if (urlc.getResponseCode() == 200) {
            result = true;
        }
    } catch (Exception e) {
        ;
    }
    return result;
}

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From source file:com.blogspot.ryanfx.auth.GoogleUtil.java

/**
 * Sends the auth token to google and gets the json result.
 * @param token auth token//ww  w  . ja v a  2  s.  c  om
 * @return json result if valid request, null if invalid.
 * @throws IOException
 * @throws LoginException
 */
private static String issueTokenGetRequest(String token) throws IOException, LoginException {
    int timeout = 2000;
    URL u = new URL("https://www.googleapis.com/oauth2/v2/userinfo");
    HttpURLConnection c = (HttpURLConnection) u.openConnection();
    c.setRequestMethod("GET");
    c.setRequestProperty("Content-length", "0");
    c.setRequestProperty("Authorization", "OAuth " + token);
    c.setUseCaches(false);
    c.setAllowUserInteraction(false);
    c.setConnectTimeout(timeout);
    c.setReadTimeout(timeout);
    c.connect();
    int status = c.getResponseCode();
    if (status == HttpServletResponse.SC_OK) {
        BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null) {
            sb.append(line + "\n");
        }
        br.close();
        return sb.toString();
    } else if (status == HttpServletResponse.SC_UNAUTHORIZED) {
        Logger.getLogger(GoogleUtil.class.getName()).severe("Invalid token request: " + token);
    }
    return null;
}

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From source file:com.facebook.GraphResponse.java

@SuppressWarnings("resource")
static List<GraphResponse> fromHttpConnection(HttpURLConnection connection, GraphRequestBatch requests) {
    InputStream stream = null;//from   w w w  . java 2s .  c  o  m

    try {
        if (connection.getResponseCode() >= 400) {
            stream = connection.getErrorStream();
        } else {
            stream = connection.getInputStream();
        }

        return createResponsesFromStream(stream, connection, requests);
    } catch (FacebookException facebookException) {
        Logger.log(LoggingBehavior.REQUESTS, RESPONSE_LOG_TAG, "Response <Error>: %s", facebookException);
        return constructErrorResponses(requests, connection, facebookException);
    } catch (JSONException exception) {
        Logger.log(LoggingBehavior.REQUESTS, RESPONSE_LOG_TAG, "Response <Error>: %s", exception);
        return constructErrorResponses(requests, connection, new FacebookException(exception));
    } catch (IOException exception) {
        Logger.log(LoggingBehavior.REQUESTS, RESPONSE_LOG_TAG, "Response <Error>: %s", exception);
        return constructErrorResponses(requests, connection, new FacebookException(exception));
    } catch (SecurityException exception) {
        Logger.log(LoggingBehavior.REQUESTS, RESPONSE_LOG_TAG, "Response <Error>: %s", exception);
        return constructErrorResponses(requests, connection, new FacebookException(exception));
    } finally {
        Utility.closeQuietly(stream);
    }
}

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From source file:Main.java

public static JSONObject updateRequest(String query) {
    HttpURLConnection connection = null;
    try {/*w  ww . j a  v a2 s .co  m*/
        connection = (HttpURLConnection) new URL(url + query).openConnection();
        connection.setRequestMethod("PUT");
        connection.setRequestProperty("Accept-Charset", charset);

        OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
        out.write("Resource content");
        out.close();

        statusCode = connection.getResponseCode();
        if (statusCode != 200) {
            return null;
        }

        InputStream response = connection.getInputStream();
        BufferedReader bR = new BufferedReader(new InputStreamReader(response));
        String line = "";

        StringBuilder responseStrBuilder = new StringBuilder();
        while ((line = bR.readLine()) != null) {
            responseStrBuilder.append(line);
        }
        response.close();
        return new JSONObject(responseStrBuilder.toString());

    } catch (IOException | JSONException e) {
        e.printStackTrace();
    }
    return new JSONObject();
}

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From source file:com.meetingninja.csse.database.TaskDatabaseAdapter.java

public static void getTask(Task t) throws JsonParseException, JsonMappingException, IOException {
    // Server URL setup
    String _url = getBaseUri().appendPath(t.getID()).build().toString();
    URL url = new URL(_url);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();

    // add request header
    conn.setRequestMethod(IRequest.GET);
    addRequestHeader(conn, false);/*from  w  w  w  .j a v a2s .c  o m*/

    // Get server response
    int responseCode = conn.getResponseCode();
    String response = getServerResponse(conn);

    // Initialize ObjectMapper
    // List<Task> taskList = new ArrayList<Task>();
    final JsonNode taskNode = MAPPER.readTree(response);

    // if(taskArray.isArray()){
    // for(final JsonNode taskNode : taskArray){
    parseTask(taskNode, t);

    // if(t!=null){
    // taskList.add(t);
    // }
    // }
    // }
    conn.disconnect();
    // return void;

}

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