Example usage for java.net URL openConnection

List of usage examples for java.net URL openConnection

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Introduction

In this page you can find the example usage for java.net URL openConnection.

Prototype

public URLConnection openConnection() throws java.io.IOException

Source Link

Document

Returns a java.net.URLConnection URLConnection instance that represents a connection to the remote object referred to by the URL .

Usage

From source file:com.breadwallet.tools.threads.ImportPrivKeyTask.java

private static String callURL(String myURL) {
    //        System.out.println("Requested URL_EA:" + myURL);
    StringBuilder sb = new StringBuilder();
    URLConnection urlConn = null;
    InputStreamReader in = null;/*from  w  ww.  ja v a 2 s.  co  m*/
    try {
        URL url = new URL(myURL);
        urlConn = url.openConnection();
        if (urlConn != null)
            urlConn.setReadTimeout(60 * 1000);
        if (urlConn != null && urlConn.getInputStream() != null) {
            in = new InputStreamReader(urlConn.getInputStream(), Charset.defaultCharset());
            BufferedReader bufferedReader = new BufferedReader(in);

            int cp;
            while ((cp = bufferedReader.read()) != -1) {
                sb.append((char) cp);
            }
            bufferedReader.close();
        }
        assert in != null;
        in.close();
    } catch (Exception e) {
        return null;
    }

    return sb.toString();
}

From source file:com.beginner.core.utils.SmsUtil.java

public static String SMS(String postData, String postUrl) {
    try {/*  w w  w  . jav  a  2  s .  c o m*/
        //??POST
        URL url = new URL(postUrl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setUseCaches(false);
        conn.setDoOutput(true);

        conn.setRequestProperty("Content-Length", "" + postData.length());
        OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
        out.write(postData);
        out.flush();
        out.close();

        //???
        if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
            System.out.println("connect failed!");
            return "";
        }
        //??
        String line, result = "";
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
        while ((line = in.readLine()) != null) {
            result += line + "\n";
        }
        in.close();
        return result;
    } catch (IOException e) {
        e.printStackTrace(System.out);
    }
    return "";
}

From source file:net.daporkchop.porkbot.util.HTTPUtils.java

private static HttpURLConnection createUrlConnection(@NonNull URL url) throws IOException {
    final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setConnectTimeout(15000);
    connection.setReadTimeout(15000);/*from www.  j av a2 s  .  com*/
    connection.setUseCaches(false);
    return connection;
}

From source file:com.android.dialer.omni.PlaceUtil.java

/**
 * Executes a post request and return a JSON object
 * @param url The API URL//from   w  w  w  .  j  av  a2s.com
 * @param data The data to post in POST field
 * @return the JSON object
 * @throws IOException
 * @throws JSONException
 */
public static JSONObject postJsonRequest(String url, String postData) throws IOException, JSONException {
    URL obj = new URL(url);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();

    con.setRequestMethod("POST");

    if (DEBUG)
        Log.d(TAG, "Posting: " + postData + " to " + url);

    // Send post request
    con.setDoOutput(true);
    DataOutputStream wr = new DataOutputStream(con.getOutputStream());
    wr.writeBytes(postData);
    wr.flush();
    wr.close();

    int responseCode = con.getResponseCode();

    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();

    JSONObject json = new JSONObject(response.toString());
    return json;
}

From source file:com.mopaas_mobile.http.BaseHttpRequester.java

public static String doGET(String urlstr, List<BasicNameValuePair> params) throws IOException {
    String result = null;/*from   w  ww . java2 s  .  c om*/
    String content = "";
    for (int i = 0; i < params.size(); i++) {
        content = content + "&" + URLEncoder.encode(((NameValuePair) params.get(i)).getName(), "UTF-8") + "="
                + URLEncoder.encode(((NameValuePair) params.get(i)).getValue(), "UTF-8");
    }
    URL url = new URL(urlstr + "?" + content.substring(1));
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoInput(true);
    connection.setRequestMethod("GET");
    connection.setUseCaches(false);
    connection.connect();
    InputStream is = connection.getInputStream();
    BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

    StringBuffer b = new StringBuffer();
    int ch;
    while ((ch = br.read()) != -1) {
        b.append((char) ch);
    }
    result = b.toString().trim();
    connection.disconnect();
    return result;
}

From source file:de.akquinet.android.androlog.reporter.PostReporter.java

/**
 * Executes the given request as a HTTP POST action.
 *
 * @param url/*  ww w  .  j  a v  a2 s  .c  o  m*/
 *            the url
 * @param params
 *            the parameter
 * @return the response as a String.
 * @throws IOException
 *             if the server cannot be reached
 */
public static void post(URL url, String params) throws IOException {
    URLConnection conn = url.openConnection();
    if (conn instanceof HttpURLConnection) {
        ((HttpURLConnection) conn).setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json");
    }
    OutputStreamWriter writer = null;
    try {
        conn.setDoOutput(true);
        writer = new OutputStreamWriter(conn.getOutputStream(), Charset.forName("UTF-8"));
        // write parameters
        writer.write(params);
        writer.flush();
    } finally {
        if (writer != null) {
            writer.close();
        }
    }
}

From source file:com.consumerkarma.TTS.SpeechAuth.java

/**
 * Sets up an OAuth client credentials authentication.
 * Follow this with a call to fetchTo() to actually load the data.
 * @param oauthService the URL of the OAuth client credentials service
 * @param apiKey the OAuth client ID//www .j av  a2s  .c  om
 * @param apiSecret the OAuth client secret
 * @throws IllegalArgumentException for bad URL, etc.
**/
public static SpeechAuth forService(String oauthService, String apiKey, String apiSecret)
        throws IllegalArgumentException {
    try {
        URL url = new URL(oauthService);
        HttpURLConnection request = (HttpURLConnection) url.openConnection();
        String data = String.format(Locale.US, OAUTH_DATA, apiKey, apiSecret);
        byte[] bytes = data.getBytes("UTF8");
        request.setConnectTimeout(CONNECT_TIMEOUT);
        request.setReadTimeout(READ_TIMEOUT);
        return new SpeechAuth(request, bytes);
    } catch (IOException e) {
        throw new IllegalArgumentException(e);
    } catch (ClassCastException e) {
        throw new IllegalArgumentException("URL must be HTTP: " + oauthService, e);
    }
}

From source file:com.ibm.jaql.lang.expr.hadoop.Util.java

/**
 * Modified from Hadoop's JobClient/*w w w  .  j  a  va  2s . c  o m*/
 * 
 * @param taskId
 * @param taskLogUrl
 */
private static void logTaskLog(TaskAttemptID taskId, URL taskLogUrl) {
    try {
        URLConnection connection = taskLogUrl.openConnection();
        BufferedReader input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        try {
            String logData = null;
            while ((logData = input.readLine()) != null) {
                if (logData.length() > 0) {
                    LOG.info("[" + taskId + "]" + logData);
                }
            }
        } finally {
            input.close();
        }
    } catch (IOException ioe) {
        LOG.warn("Error reading task output" + ioe.getMessage());
    }
}

From source file:com.surfs.storage.common.util.HttpUtils.java

public static String invokeHttpForGet(String path, String... agrs) throws IOException {
    URL url = new URL(path);
    LogFactory.info("rest url:" + url.toString());
    HttpURLConnection con = null;
    try {/*from w  ww  .  j av  a  2  s.com*/
        con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod("GET");
        con.setConnectTimeout(10000);
        con.setReadTimeout(1000 * 60 * 30);
        con.setDoOutput(true);
        con.setDoInput(true);
        con.setUseCaches(false);

        for (String string : agrs) {
            con.setRequestProperty("Content-type", "application/json");
            con.setRequestMethod("POST");
            OutputStream out = con.getOutputStream();
            out.write(string.getBytes("UTF-8"));
        }

        if (con.getResponseCode() != 200)
            throw new ConnectException(con.getResponseMessage());

        InputStream is = con.getInputStream();

        return readResponse(is);

    } catch (IOException e) {
        throw e;
    } finally {
        if (con != null) {
            con.disconnect();
        }
    }
}

From source file:mp3downloader.ZingSearch.java

private static String getSearchResult(String term, int searchType)
        throws UnsupportedEncodingException, MalformedURLException, IOException {
    String data = "{\"kw\": \"" + term + "\", \"t\": " + searchType + ", \"rc\": 50}";
    String jsonData = URLEncoder.encode(Base64.getEncoder().encodeToString(data.getBytes("UTF-8")), "UTF-8");
    String signature = hash_hmac(jsonData, privateKey);
    String urlString = searchUrl + "publicKey=" + publicKey + "&signature=" + signature + "&jsondata="
            + jsonData;/*from w w  w .  ja v a2s  . c  o  m*/
    URL url = new URL(urlString);
    URLConnection urlConn = url.openConnection();
    urlConn.addRequestProperty("User-Agent",
            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36");
    InputStream is = urlConn.getInputStream();
    BufferedReader reader = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
    String line;
    StringBuilder sb = new StringBuilder();
    while ((line = reader.readLine()) != null) {
        sb.append(line);
        sb.append("\n");
    }
    is.close();
    String content = sb.toString();
    return content;
}