Example usage for java.net HttpURLConnection getInputStream

Introduction

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

Prototype

public InputStream getInputStream() throws IOException 

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:com.beust.android.translate.Translate.java

/**
 * Forms an HTTP request and parses the response for a translation.
 *
 * @param text The String to translate./*from   ww  w  .j a  v a  2  s.co m*/
 * @param from The language code to translate from.
 * @param to The language code to translate to.
 * @return The translated String.
 * @throws Exception
 */
private static String retrieveTranslation(String text, String from, String to) throws Exception {
    try {
        StringBuilder url = new StringBuilder();
        url.append(URL_STRING).append(from).append("%7C").append(to);
        url.append(TEXT_VAR).append(URLEncoder.encode(text, ENCODING));

        Log.d(TranslateService.TAG, "Connecting to " + url.toString());
        HttpURLConnection uc = (HttpURLConnection) new URL(url.toString()).openConnection();
        uc.setDoInput(true);
        uc.setDoOutput(true);
        try {
            Log.d(TranslateService.TAG, "getInputStream()");
            InputStream is = uc.getInputStream();
            String result = toString(is);

            JSONObject json = new JSONObject(result);
            return ((JSONObject) json.get("responseData")).getString("translatedText");
        } finally { // http://java.sun.com/j2se/1.5.0/docs/guide/net/http-keepalive.html
            uc.getInputStream().close();
            if (uc.getErrorStream() != null)
                uc.getErrorStream().close();
        }
    } catch (Exception ex) {
        throw ex;
    }
}

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From source file:Main.java

public static String readPeopleData(String uri) {
    URL url;//from   w  w w . j  av a2  s  .  c  o  m
    StringBuffer jsonstring = null;
    HttpURLConnection connection;

    Logger.getAnonymousLogger().info("Getting data for " + uri);

    try {
        url = new URL(uri);
        connection = (HttpURLConnection) url.openConnection();
        connection.setConnectTimeout(1000 * 5);

        InputStreamReader is = new InputStreamReader(connection.getInputStream());
        BufferedReader buff = new BufferedReader(is);
        jsonstring = new StringBuffer();
        String line = "";
        do {
            line = buff.readLine();
            if (line != null)
                jsonstring.append(line);
        } while (line != null);
    }

    catch (MalformedURLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    Logger.getAnonymousLogger().info("Returning Data " + jsonstring);

    if (null != jsonstring) {
        return jsonstring.toString().trim();
    } else {
        return null;
    }
}

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From source file:Main.java

private static String httpGet(String address) {
    InputStream inputStream = null;
    HttpURLConnection httpURLConnection = null;
    try {/* w  w  w . j ava 2s .c  o  m*/
        URL url = new URL(address);
        httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.connect();
        if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
            inputStream = httpURLConnection.getInputStream();
            int len = 0;
            byte[] buffer = new byte[1024];
            StringBuffer stringBuffer = new StringBuffer();
            while ((len = inputStream.read(buffer)) != -1) {
                stringBuffer.append(new String(buffer, 0, len));
            }
            return stringBuffer.toString();
        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        close(inputStream);
        if (httpURLConnection != null) {
            httpURLConnection.disconnect();
        }

    }

    return null;

}

---

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

/**
 * Performs a GET request to the specified URL and returns the result.
 * <p />// www .j a  v a 2 s. c o  m
 * The response will be parsed as UTF-8.
 * If the server returns an error but still provides a body, the body will be returned as normal.
 * If the server returns an error without any body, a relevant {@link java.io.IOException} will be thrown.
 *
 * @param url URL to submit the GET request to
 * @return Raw text response from the server
 * @throws IOException The request was not successful
 */
public static String performGetRequest(final URL url) throws IOException {
    Validate.notNull(url);
    final HttpURLConnection connection = createUrlConnection(url);

    InputStream inputStream = null;
    try {
        inputStream = connection.getInputStream();
        final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
        return result;
    } catch (final IOException e) {
        IOUtils.closeQuietly(inputStream);
        inputStream = connection.getErrorStream();

        if (inputStream != null) {
            final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
            return result;
        } else {
            throw e;
        }
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

---

From source file:Main.java

static public String download_json(String url_addr) {
    StringBuilder result = new StringBuilder();
    try {// w  w w .  j a  va2 s . c o  m
        URL url = new URL(url_addr);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        if (conn != null) {
            conn.setConnectTimeout(10000);
            conn.setUseCaches(false);
            if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
                BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                for (;;) {
                    String line = br.readLine();
                    if (line == null)
                        break;
                    result.append(line + '\n');
                }
                br.close();
            } else {
                conn.disconnect();
                return null;
            }
            conn.disconnect();
        }
    } catch (Exception e) {
        Log.e(TAG, e.toString());
        return null;
    }
    return result.toString();
}

---

From source file:com.andrious.btc.data.jsonUtils.java

private static InputStreamReader getInputStream(String urlString) throws IOException {

    HttpURLConnection conn = urlConnect(urlString);

    return new InputStreamReader(conn.getInputStream());
}

---

From source file:com.ettoremastrogiacomo.sktradingjava.starters.Temp.java

public static void fetchEuroNext() throws Exception {

    String u0 = "https://www.euronext.com/en/equities/directory";
    com.ettoremastrogiacomo.utils.HttpFetch httpf = new com.ettoremastrogiacomo.utils.HttpFetch();
    if (Init.use_http_proxy.equals("true")) {
        httpf.setProxy(Init.http_proxy_host, Integer.parseInt(Init.http_proxy_port), Init.http_proxy_user,
                Init.http_proxy_password);
    }//  w  w w.  j  a v a 2  s . c  o  m
    String s = new String(httpf.HttpGetUrl(u0, Optional.empty(), Optional.empty()));

    int k1 = s.indexOf("\\/en\\/popup\\/data\\/download?");
    int k2 = s.indexOf("\"", k1);
    String u1 = s.substring(k1, k2 - 1);
    //LOG.debug(u1);
    u1 = u1.replace("\\u0026", "&");
    u1 = "https://www.euronext.com" + u1.replace("/", "");
    u1 = u1.replace("\\", "/");
    LOG.debug(u1);
    s = new String(httpf.HttpGetUrl(u1, Optional.empty(), Optional.empty()));
    Document doc = Jsoup.parse(s);
    java.util.HashMap<String, String> vmap = new java.util.HashMap<>();
    vmap.put("format", "1");
    vmap.put("layout", "2");
    vmap.put("decimal_separator", "1");
    vmap.put("date_format", "1");
    vmap.put("op", "Go");
    Elements links = doc.select("input[name=\"form_build_id\"]");
    links.forEach((x) -> {
        vmap.put("form_build_id", x.attr("value"));
    });
    links = doc.select("input[name=\"form_id\"]");
    links.forEach((x) -> {
        vmap.put("form_id", x.attr("value"));
    });
    HttpURLConnection post = httpf.sendPostRequest(u1, vmap);
    StringBuffer response;
    try (BufferedReader in = new BufferedReader(new InputStreamReader(post.getInputStream()))) {
        String inputLine;
        response = new StringBuffer();
        while ((inputLine = in.readLine()) != null) {
            response.append("\n").append(inputLine);
        }
    }
    String res = response.toString();
    String[] lines = res.split("\n");
    for (String line : lines) {
        String[] row = line.split("\t");
        if (row.length == 13) {
            LOG.debug(row[0] + "\t" + row[1] + "\t" + row[2] + "\t" + row[3] + "\t" + row[4] + "\t" + row[5]);
        }
    }
}

---

From source file:com.whp.android.location.geocode.GeocodeHelper.java

/**
 * getAddresses/*from  w  w w  .  j  a  v a  2 s  . com*/
 * 
 * @param url
 * @return
 */
public static GeocodeResult getAddresses(StringBuilder url) {
    GeocodeResult result = null;

    try {

        HttpURLConnection httpURLConnection = null;
        StringBuilder stringBuilder = new StringBuilder();

        httpURLConnection = (HttpURLConnection) new URL(url.toString()).openConnection();
        InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream());

        int read;
        char[] buff = new char[1024];
        while ((read = inputStreamReader.read(buff)) != -1) {
            stringBuilder.append(buff, 0, read);
        }
        httpURLConnection.disconnect();

        JSONObject jObject = new JSONObject(stringBuilder.toString());

        result = GeocodeJsonParser.parse(jObject);

    } catch (Exception e) {
        e.printStackTrace();
    }
    return result;
}

---

From source file:io.github.retz.scheduler.MesosHTTPFetcher.java

static List<Map<String, Object>> fetchTasks(String master, String frameworkId, int offset, int limit)
        throws MalformedURLException {
    URL url = new URL("http://" + master + "/tasks?offset=" + offset + "&limit=" + limit);
    HttpURLConnection conn;
    try {/*from ww w.  ja v a  2s .  c  o m*/
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setDoOutput(true);
        return parseTasks(conn.getInputStream(), frameworkId);
    } catch (IOException e) {
        return new LinkedList<>();
    }
}

---

From source file:Main.java

public static String jsonGetRequest(String urlQueryString) {
    String json = null;/* w w  w. ja v a2 s  .  co m*/
    try {
        URL url = new URL(urlQueryString);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoOutput(true);
        connection.setInstanceFollowRedirects(false);
        connection.setRequestMethod("GET");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("charset", "utf-8");
        connection.connect();
        InputStream inStream = connection.getInputStream();
        json = streamToString(inStream); // input stream to string
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    return json;
}

---

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