Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

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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.amastigote.xdu.query.module.EduSystem.java

private void preLogin() throws IOException {
    URL url = new URL(SYS_HOST);
    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setInstanceFollowRedirects(false);
    httpURLConnection.connect();
    List<String> cookies_to_set_a = httpURLConnection.getHeaderFields().get("Set-Cookie");
    for (String e : cookies_to_set_a)
        if (e.contains("JSESSIONID="))
            SYS_JSESSIONID = e.substring(e.indexOf("JSESSIONID=") + 11, e.indexOf(";"));
    httpURLConnection.disconnect();/*  w  ww.j  a  va 2s. c om*/

    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setInstanceFollowRedirects(true);
    httpURLConnection.connect();

    List<String> cookies_to_set = httpURLConnection.getHeaderFields().get("Set-Cookie");
    for (String e : cookies_to_set) {
        if (e.contains("route="))
            ROUTE = e.substring(6);
        else if (e.contains("JSESSIONID="))
            LOGIN_JSESSIONID = e.substring(11, e.indexOf(";"));
        else if (e.contains("BIGipServeridsnew.xidian.edu.cn="))
            BIGIP_SERVER_IDS_NEW = e.substring(32, e.indexOf(";"));
    }

    BufferedReader bufferedReader = new BufferedReader(
            new InputStreamReader(httpURLConnection.getInputStream()));
    String html = "";
    String temp;

    while ((temp = bufferedReader.readLine()) != null) {
        html += temp;
    }

    Document document = Jsoup.parse(html);
    Elements elements = document.select("input[type=hidden]");

    for (Element element : elements) {
        switch (element.attr("name")) {
        case "lt":
            LOGIN_PARAM_lt = element.attr("value");
            break;
        case "execution":
            LOGIN_PARAM_execution = element.attr("value");
            break;
        case "_eventId":
            LOGIN_PARAM__eventId = element.attr("value");
            break;
        case "rmShown":
            LOGIN_PARAM_rmShown = element.attr("value");
            break;
        }
    }
}

From source file:com.jeffrodriguez.webtools.client.URLConnectionWebClientImpl.java

@Override
public Map<String, List<String>> getHeaders(String url) throws IOException {

    logger.log(Level.INFO, "Getting HEAD from {0}", url);

    // Build and connect
    HttpURLConnection connection = buildConnection(url);
    connection.setDoInput(true);//from  w  w  w  .j av  a  2 s  . co  m
    connection.setRequestMethod("HEAD");
    connection.connect();

    // Get the headers
    return disconnectAndReturn(connection, connection.getHeaderFields());
}

From source file:com.amastigote.xdu.query.module.EduSystem.java

private @Nullable JSONObject personalInfoQuery() throws IOException, JSONException {
    if (!checkIsLogin(ID)) {
        return null;
    }/*ww w .  j  a  v a  2  s  .c  o m*/

    URL url = new URL(SYS_HOST + "xjInfoAction.do?oper=xjxx");
    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Cookie", "JSESSIONID=" + SYS_JSESSIONID);
    httpURLConnection.connect();

    Document document = Jsoup.parse(httpURLConnection.getInputStream(), "gb2312",
            httpURLConnection.getURL().toString());
    document = Jsoup.parse(document.toString().replaceAll("&nbsp;", ""));

    Elements elements1 = document.select("td[width=275]");

    JSONObject jsonObject = new JSONObject();
    jsonObject.put(StudentKey.ID, elements1.get(0).text());
    jsonObject.put(StudentKey.NAME, elements1.get(1).text());
    jsonObject.put(StudentKey.GENDER, elements1.get(6).text());
    jsonObject.put(StudentKey.NATION, elements1.get(10).text());
    jsonObject.put(StudentKey.NATIVE_PLACE, elements1.get(11).text());
    jsonObject.put(StudentKey.DEPARTMENT, elements1.get(24).text());
    jsonObject.put(StudentKey.MAJOR, elements1.get(25).text());
    jsonObject.put(StudentKey.CLASS, elements1.get(28).text());

    return jsonObject;
}

From source file:com.permpings.utils.facebook.sdk.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/* www  . j  av a 2 s.c  om*/
 * @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()) {
            Object parameter = params.get(key);
            if (parameter instanceof byte[]) {
                dataparams.putByteArray(key, (byte[]) parameter);
            }
        }

        // 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.ble.facebook.Util.java

public static String posttowall(String url, String method, Bundle params, String Accesstoken)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;/*from   ww  w.ja  va2s .c  o  m*/

    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.putByteArray("method", method.getBytes());
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(Accesstoken);
            params.putByteArray("access_token", decoded_token.getBytes());
        }

        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());
        Log.d("OutputStreamedData", ("--" + strBoundary + endLine) + (encodePostBody(params, strBoundary))
                + (endLine + "--" + strBoundary + endLine));
        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:karroo.app.test.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 va  2s.c  o 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;

    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) {
            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;
}

From source file:com.mobli.android.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 * //from   w w  w  .j  av  a  2s  .c om
 * 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("Mobli-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " MobliAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            Object parameter = params.get(key);
            if (parameter instanceof byte[]) {
                dataparams.putByteArray(key, (byte[]) parameter);
            }
        }

        // 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 Mobli error
        response = read(conn.getErrorStream());
    }
    return response;
}

From source file:com.amastigote.xdu.query.module.EduSystem.java

private @Nullable JSONObject gradesQuery() throws IOException, JSONException {
    if (!checkIsLogin(ID)) {
        return null;
    }/*from  w  w  w  .j  av a 2s.c  o m*/

    URL url = new URL(SYS_HOST + GRADE_QUERY_SUFFIX);
    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Cookie", "JSESSIONID=" + SYS_JSESSIONID);
    httpURLConnection.connect();

    Document document = Jsoup.parse(httpURLConnection.getInputStream(), "gb2312",
            httpURLConnection.getURL().toString());
    document = Jsoup.parse(document.toString().replaceAll("&nbsp;", ""));

    JSONObject jsonObject = new JSONObject();
    Elements elements_content = document.select("td[class=pageAlign]");
    Elements elements_titles = document.select("b");
    for (int i = 0; i < elements_titles.size(); i++) {
        JSONObject jsonObject_semester = new JSONObject();
        String semester_key = elements_titles.get(i).text().trim();

        Element table_for_this_semester = elements_content.get(i);
        Elements elements_rows = table_for_this_semester.select("td[align=center]");

        for (int j = 0; j < elements_rows.size() / 7; j++) {
            JSONObject jsonObject_course = new JSONObject();
            String course_key = elements_rows.get(j * 7 + 2).text().trim();

            jsonObject_course.put(GradeKey.ID, elements_rows.get(j * 7).text().trim());
            jsonObject_course.put(GradeKey.CREDIT, elements_rows.get(j * 7 + 4).text().trim());
            jsonObject_course.put(GradeKey.ATTR, elements_rows.get(j * 7 + 5).text().trim());
            jsonObject_course.put(GradeKey.GRADE, elements_rows.get(j * 7 + 6).text().trim());
            jsonObject_semester.put(course_key, jsonObject_course);
        }
        jsonObject.put(semester_key, jsonObject_semester);
    }
    return jsonObject;
}

From source file:com.mercandalli.android.apps.files.common.net.TaskGet.java

@Override
protected String doInBackground(Void... urls) {
    try {//from ww w .  ja v a 2 s.  c  om
        if (this.parameters != null) {
            if (!StringUtils.isNullOrEmpty(Config.getNotificationId())) {
                parameters.add(new StringPair("android_id", "" + Config.getNotificationId()));
            }
            url = NetUtils.addUrlParameters(url, parameters);
        }

        Log.d("TaskGet", "url = " + url);

        URL tmp_url = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) tmp_url.openConnection();
        conn.setReadTimeout(10_000);
        conn.setConnectTimeout(15_000);
        conn.setRequestMethod("GET");
        if (isAuthentication) {
            conn.setRequestProperty("Authorization", "Basic " + Config.getUserToken());
        }
        conn.setUseCaches(false);
        conn.setDoInput(true);

        conn.connect(); // Starts the query
        int responseCode = conn.getResponseCode();
        InputStream inputStream = new BufferedInputStream(conn.getInputStream());

        // convert inputstream to string
        String resultString = convertInputStreamToString(inputStream);

        //int responseCode = response.getStatusLine().getStatusCode();
        if (responseCode >= 300) {
            resultString = "Status Code " + responseCode + ". " + resultString;
        }

        conn.disconnect();

        return resultString;
    } catch (IOException e) {
        Log.e(getClass().getName(), "IOException", e);
    }
    return null;
}