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.epic.framework.implementation.tapjoy.TapjoyURLConnection.java

/**
 * Performs a network request call to the specified URL and parameters.
 * /*from   www  .ja v  a 2  s  . c om*/
 * @param url                     The base URL.
 * @param params                  The URL parameters.
 * @return                         Response from the server.
 */
public String connectToURL(String url, String params) {
    String httpResponse = null;

    BufferedReader rd = null;
    StringBuilder sb = null;
    String line = null;

    try {
        String requestURL = url + params;

        // Replaces all spaces.
        requestURL = requestURL.replaceAll(" ", "%20");

        TapjoyLog.i(TAPJOY_URL_CONNECTION, "baseURL: " + url);
        TapjoyLog.i(TAPJOY_URL_CONNECTION, "requestURL: " + requestURL);

        // USE java.net HTTP connection instead.

        URL httpURL = new URL(requestURL);
        HttpURLConnection connection = (HttpURLConnection) httpURL.openConnection();
        connection.setConnectTimeout(15000);
        connection.setReadTimeout(30000);
        httpResponse = connection.getResponseMessage();

        connection.connect();

        // Read the result from the server.
        rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        sb = new StringBuilder();

        while ((line = rd.readLine()) != null) {
            sb.append(line + '\n');
        }

        httpResponse = sb.toString();

        // OLD CODE USING APACHE API

        // HttpGet http = new HttpGet(requestURL);
        //
        // // Create a HttpParams object so we can set our timeout times.
        // HttpParams httpParameters = new BasicHttpParams();
        //
        // // Time to wait to establish initial connection.
        // HttpConnectionParams.setConnectionTimeout(httpParameters, 15000);
        //
        // // Time to wait for incoming data.
        // HttpConnectionParams.setSoTimeout(httpParameters, 30000);
        //
        // // Create a http client with out timeout settings.
        // HttpClient client = new DefaultHttpClient(httpParameters);
        //
        // HttpResponse response = client.execute(http);
        // HttpEntity entity = response.getEntity();
        //
        // httpResponse = EntityUtils.toString(entity);

        TapjoyLog.i(TAPJOY_URL_CONNECTION, "--------------------");
        // TapjoyLog.i(TAPJOY_URL_CONNECTION, "response status: " + response.getStatusLine().getStatusCode());
        TapjoyLog.i(TAPJOY_URL_CONNECTION, "response size: " + httpResponse.length());
        TapjoyLog.i(TAPJOY_URL_CONNECTION, "response: ");
        TapjoyLog.i(TAPJOY_URL_CONNECTION, "" + httpResponse);
        TapjoyLog.i(TAPJOY_URL_CONNECTION, "--------------------");
    } catch (Exception e) {
        TapjoyLog.e(TAPJOY_URL_CONNECTION, "Exception: " + e.toString());
    }

    return httpResponse;
}

---

From source file:com.facebook.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 *
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 *
 * @param url - the resource to open: must be a welformed URL
 * @param method - the HTTP method to use ("GET", "POST", etc.)
 * @param params - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String//w  w  w .ja  v a2  s .  c o  m
 * @throws MalformedURLException - if the URL format is invalid
 * @throws IOException - if a network problem occurs
 */
@SuppressWarnings("deprecation")
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Log.d("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            if (params.getByteArray(key) != null) {
                dataparams.putByteArray(key, params.getByteArray(key));
            }
        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();
        os = new BufferedOutputStream(conn.getOutputStream());

        os.write(("--" + strBoundary + endLine).getBytes());
        os.write((encodePostBody(params, strBoundary)).getBytes());
        os.write((endLine + "--" + strBoundary + endLine).getBytes());

        if (!dataparams.isEmpty()) {

            for (String key : dataparams.keySet()) {
                os.write(("Content-Disposition: form-data; filename=\"" + key + "\"" + endLine).getBytes());
                os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                os.write(dataparams.getByteArray(key));
                os.write((endLine + "--" + strBoundary + endLine).getBytes());

            }
        }
        os.flush();
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}

---

From source file:com.bpd.facebook.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 *
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 *
 * @param url - the resource to open: must be a welformed URL
 * @param method - the HTTP method to use ("GET", "POST", etc.)
 * @param params - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String//from  www .ja v  a  2s .co  m
 * @throws MalformedURLException - if the URL format is invalid
 * @throws IOException - if a network problem occurs
 */
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    // Try to get filename key
    String filename = params.getString("filename");

    // If found
    if (filename != null) {
        // Remove from params
        params.remove("filename");
    }

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Log.d("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            if (params.getByteArray(key) != null) {
                dataparams.putByteArray(key, params.getByteArray(key));
            }
        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();
        os = new BufferedOutputStream(conn.getOutputStream());

        os.write(("--" + strBoundary + endLine).getBytes());
        os.write((encodePostBody(params, strBoundary)).getBytes());
        os.write((endLine + "--" + strBoundary + endLine).getBytes());

        if (!dataparams.isEmpty()) {

            for (String key : dataparams.keySet()) {
                os.write(("Content-Disposition: form-data; filename=\"" + ((filename != null) ? filename : key)
                        + "\"" + endLine).getBytes());
                os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                os.write(dataparams.getByteArray(key));
                os.write((endLine + "--" + strBoundary + endLine).getBytes());

            }
        }
        os.flush();
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}

---

From source file:UrlEngine.java

@Override
public ResponseEntity<String> submit(JCurlRequestOptions requestOptions) throws Exception {
    System.setProperty("http.keepAlive", "true");

    ResponseEntity<String> responseEntity = null;
    URL obj = new URL(requestOptions.getUrl());

    for (int i = 0; i < requestOptions.getCount(); i++) {
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // add request header
        con.setRequestMethod("GET");
        con.setConnectTimeout(2000);//from w  w w .j a v a2s  . c o m
        for (Map.Entry<String, String> e : requestOptions.getHeaderMap().entrySet()) {
            con.setRequestProperty(e.getKey(), e.getValue());
        }

        System.out.println("\nSending 'GET' request to URL : " + requestOptions.getUrl());
        con.connect();

        int responseCode = con.getResponseCode();
        System.out.println("Response Code : " + responseCode);

        final InputStream is = con.getInputStream();
        String response = IOUtils.toString(is);
        is.close();

        //print result
        System.out.println(response);

        responseEntity = new ResponseEntity<String>(response, HttpStatus.valueOf(responseCode));
    }
    return responseEntity;
}

---

From source file:com.entertailion.android.dial.HttpRequestHelper.java

public InputStream getHttpStream(String urlString) throws IOException {
    InputStream in = null;//  w  w w  .j  a  v a  2 s. c o  m
    int response = -1;

    URL url = new URL(urlString);
    URLConnection conn = url.openConnection();

    if (!(conn instanceof HttpURLConnection))
        throw new IOException("Not an HTTP connection");

    try {
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        httpConn.setAllowUserInteraction(false);
        httpConn.setInstanceFollowRedirects(true);
        httpConn.setRequestMethod("GET");
        httpConn.connect();

        response = httpConn.getResponseCode();

        if (response == HttpURLConnection.HTTP_OK) {
            in = httpConn.getInputStream();
        }
    } catch (Exception e) {
        throw new IOException("Error connecting");
    } // end try-catch

    return in;
}

---

From source file:com.github.bmadecoder.Authenticator.java

public long getTimeDiff() {
    if (!this.syncing) {
        return 0;
    }// w  ww. java  2 s.  c  om
    try {
        URL url = URI.create("http://m.eu.mobileservice.blizzard.com/enrollment/time.htm").toURL();
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Content-type", "application/octet-stream");
        conn.setRequestProperty("Accept", "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2");
        conn.setReadTimeout(10000);
        conn.setDoInput(true);
        conn.connect();

        byte[] servertime = new byte[8];
        InputStream connectionStream = conn.getInputStream();
        connectionStream.read(servertime, 0, 8);
        connectionStream.close();
        conn.disconnect();

        return new BigInteger(servertime).longValue() - System.currentTimeMillis();
    } catch (MalformedURLException e) {
        throw new IllegalStateException(e);
    } catch (IOException e) {
        return 0;
    }
}

---

From source file:com.mobile.godot.core.service.task.GodotAction.java

@Override
public void run() {

    System.out.println("inside runnable");

    android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);

    URL url = GodotURLUtils.parseToURL(this.mServlet, this.mParams);

    System.out.println("url: " + url);

    HttpURLConnection connection = null;
    InputStream iStream;/*  w w w .ja v a 2s .  c  o  m*/
    InputStream eStream;
    int responseCode = 0;
    String data = null;

    try {

        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.connect();

        if (!url.getHost().equals(connection.getURL().getHost())) {
            this.mHandler.obtainMessage(GodotMessage.Error.REDIRECTION_ERROR).sendToTarget();
            connection.disconnect();
            return;
        }

        try {

            iStream = new BufferedInputStream(connection.getInputStream());
            BufferedReader bReader = new BufferedReader(new InputStreamReader(iStream));
            data = bReader.readLine();
            responseCode = connection.getResponseCode();

        } catch (IOException exc) {

            eStream = new BufferedInputStream(connection.getErrorStream());
            BufferedReader bReader = new BufferedReader(new InputStreamReader(eStream));
            data = bReader.readLine();
            responseCode = connection.getResponseCode();

        } finally {

            if (data != null) {

                this.mHandler.obtainMessage(this.mMessageMap.get(responseCode), data).sendToTarget();

            } else {

                this.mHandler.obtainMessage(this.mMessageMap.get(responseCode)).sendToTarget();

            }
        }

    } catch (IOException exc) {

        this.mHandler.obtainMessage(GodotMessage.Error.SERVER_ERROR).sendToTarget();

    } finally {

        connection.disconnect();

    }

}

---

From source file:com.shinymayhem.radiopresets.ServiceAudioFormat.java

private Map<String, List<String>> getInputStream(String url) throws IOException, StreamHttpException {
    /*//from   w  ww .ja va2 s .c o m
    URL streamUrl = new URL(url);
    StreamURLConnection con;
    con = (StreamURLConnection)streamUrl.openConnection();
    con.setRequestProperty("Connection", "close");
    con.connect();
    int responseCode = con.getResponseCode(); 
    if (responseCode < 200 || responseCode >= 300)
    {
    this.handleHttpError(con);
    }*/
    URL streamUrl = new URL(url);
    HttpURLConnection con;
    con = (HttpURLConnection) streamUrl.openConnection();
    con.setRequestProperty("Connection", "close");
    con.connect();
    Map<String, List<String>> headers = con.getHeaderFields();
    String statusLine = headers.get(null).get(0); //con.getHeaderField(0);
    //String statusLine2 = con.getHeaderField(0);
    String message = statusLine;
    int responseCode = -1;
    if (statusLine.startsWith("HTTP/1.") || statusLine.startsWith("ICY")) {
        int codePos = statusLine.indexOf(' ');
        if (codePos > 0) {

            int phrasePos = statusLine.indexOf(' ', codePos + 1);
            if (phrasePos > 0 && phrasePos < statusLine.length()) {
                message = statusLine.substring(phrasePos + 1);
            }

            if (phrasePos < 0)
                phrasePos = statusLine.length();

            try {
                responseCode = Integer.parseInt(statusLine.substring(codePos + 1, phrasePos));
            } catch (NumberFormatException e) {
            }
        }
    }

    this.handleHttpResponse(responseCode, message);
    mStream = con.getInputStream();
    return headers;
}

---

From source file:org.apache.mycat.advisor.common.net.http.HttpService.java

/**
 * ? header?//from  w  w  w.j  a  v  a  2s  . co m
 *
 * @param requestUrl
 * @param requestMethod
 * @param WithTokenHeader
 * @param token
 * @return
 */
public static String doHttpRequest(String requestUrl, String requestMethod, Boolean WithTokenHeader,
        String token) {
    String result = null;
    InetAddress ipaddr;
    int responseCode = -1;
    try {
        ipaddr = InetAddress.getLocalHost();
        StringBuffer buffer = new StringBuffer();
        URL url = new URL(requestUrl);
        HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();
        httpUrlConn.setDoOutput(true);
        httpUrlConn.setDoInput(true);
        httpUrlConn.setUseCaches(false);

        httpUrlConn.setUseCaches(false);
        httpUrlConn.setRequestProperty("Accept-Charset", DEFAULT_CHARSET);
        httpUrlConn.setRequestProperty("Content-Type", "application/json;charset=" + DEFAULT_CHARSET);
        if (WithTokenHeader) {
            if (token == null) {
                throw new IllegalStateException("Oauth2 token is not set!");
            }
            httpUrlConn.setRequestProperty("Authorization", "OAuth2 " + token);
            httpUrlConn.setRequestProperty("API-RemoteIP", ipaddr.getHostAddress());
        }
        // ?GET/POST
        httpUrlConn.setRequestMethod(requestMethod);

        if ("GET".equalsIgnoreCase(requestMethod))
            httpUrlConn.connect();

        //            // ????
        //            if (null != outputJson) {
        //                OutputStream outputStream = httpUrlConn.getOutputStream();
        //                //??
        //                outputStream.write(outputJson.getBytes(DEFAULT_CHARSET));
        //                outputStream.close();
        //            }

        // ???
        InputStream inputStream = httpUrlConn.getInputStream();
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream, DEFAULT_CHARSET);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

        String str = null;
        while ((str = bufferedReader.readLine()) != null) {
            buffer.append(str);
        }
        result = buffer.toString();
        bufferedReader.close();
        inputStreamReader.close();
        // ?
        inputStream.close();
        httpUrlConn.disconnect();
    } catch (ConnectException ce) {
        logger.error("server connection timed out.", ce);
    } catch (Exception e) {
        logger.error("http request error:", e);
    } finally {
        return result;
    }
}

---

From source file:com.facebook.android.library.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 * /*from w  w w  . j  av  a2  s  . c  o m*/
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 * 
 * @param url
 *            - the resource to open: must be a welformed URL
 * @param method
 *            - the HTTP method to use ("GET", "POST", etc.)
 * @param params
 *            - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String
 * @throws MalformedURLException
 *             - if the URL format is invalid
 * @throws IOException
 *             - if a network problem occurs
 */
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Util.logd("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            if (params.get(key) instanceof byte[]) {
                dataparams.putByteArray(key, params.getByteArray(key));
            }

        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();
        os = new BufferedOutputStream(conn.getOutputStream());

        os.write(("--" + strBoundary + endLine).getBytes());
        os.write((encodePostBody(params, strBoundary)).getBytes());
        os.write((endLine + "--" + strBoundary + endLine).getBytes());

        if (!dataparams.isEmpty()) {

            for (String key : dataparams.keySet()) {
                os.write(("Content-Disposition: form-data; filename=\"" + key + "\"" + endLine).getBytes());
                os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                os.write(dataparams.getByteArray(key));
                os.write((endLine + "--" + strBoundary + endLine).getBytes());

            }
        }
        os.flush();
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}

---

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