Example usage for java.net HttpURLConnection getInputStream

List of usage examples for java.net HttpURLConnection getInputStream

  1. HOME
  2. Java
  3. java
  4. java.net.*
  5. HttpURLConnection
  6. 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.gallatinsystems.common.util.S3Util.java

public static boolean putObjectAcl(String bucketName, String objectKey, ACL acl, String awsAccessId,
        String awsSecretKey) throws IOException {

    final String date = getDate();
    final URL url = new URL(String.format(S3_URL, bucketName, objectKey) + "?acl");
    final String payload = String.format(PUT_PAYLOAD_ACL, date, acl.toString(), bucketName, objectKey);
    final String signature = MD5Util.generateHMAC(payload, awsSecretKey);
    HttpURLConnection conn = null;
    try {/*from   w w w.  j  a  v  a  2s.  co m*/

        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestMethod("PUT");
        conn.setRequestProperty("Date", date);
        conn.setRequestProperty("x-amz-acl", acl.toString());
        conn.setRequestProperty("Authorization", "AWS " + awsAccessId + ":" + signature);

        int status = conn.getResponseCode();

        if (status != 200 && status != 201) {
            log.severe("Error setting ACL for: " + url.toString());
            log.severe(IOUtils.toString(conn.getInputStream()));
            return false;
        }
        return true;
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

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

/**
 * Performs a POST request to the specified URL and returns the result.
 * <p />/*from   w  w w  .j  a v  a 2  s  .  co m*/
 * The POST data will be encoded in UTF-8 as the specified contentType. 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 POST request to
 * @param post POST data in the correct format to be submitted
 * @param contentType Content type of the POST data
 * @return Raw text response from the server
 * @throws IOException The request was not successful
 */
public static String performPostRequest(final URL url, final String post, final String contentType)
        throws IOException {
    Validate.notNull(url);
    Validate.notNull(post);
    Validate.notNull(contentType);
    final HttpURLConnection connection = createUrlConnection(url);
    final byte[] postAsBytes = post.getBytes(Charsets.UTF_8);

    connection.setRequestProperty("Content-Type", contentType + "; charset=utf-8");
    connection.setRequestProperty("Content-Length", "" + postAsBytes.length);
    connection.setDoOutput(true);

    OutputStream outputStream = null;
    try {
        outputStream = connection.getOutputStream();
        IOUtils.write(postAsBytes, outputStream);
    } finally {
        IOUtils.closeQuietly(outputStream);
    }

    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

@SuppressLint("NewApi")
public static void getURL(String path) {
    String fileName = "";
    String dir = "/IndoorNavi/";
    File sdRoot = Environment.getExternalStorageDirectory();
    try {/*from   w w w .j  ava2 s . c  o m*/
        // Open the URLConnection for reading
        URL u = new URL(path);
        // URL u = new URL("http://www.baidu.com/");
        HttpURLConnection uc = (HttpURLConnection) u.openConnection();

        int code = uc.getResponseCode();
        String response = uc.getResponseMessage();
        //System.out.println("HTTP/1.x " + code + " " + response);
        for (int j = 1;; j++) {
            String key = uc.getHeaderFieldKey(j);
            String header = uc.getHeaderField(j);
            if (!(key == null)) {
                if (key.equals("Content-Name"))
                    fileName = header;
            }
            if (header == null || key == null)
                break;
            //System.out.println(uc.getHeaderFieldKey(j) + ": " + header);
        }
        Log.i("zhr", fileName);
        //System.out.println();

        try (InputStream in = new BufferedInputStream(uc.getInputStream())) {

            // chain the InputStream to a Reader
            Reader r = new InputStreamReader(in);
            int c;
            File mapFile = new File(sdRoot, dir + fileName);
            mapFile.createNewFile();
            FileOutputStream filecon = new FileOutputStream(mapFile);
            while ((c = r.read()) != -1) {
                //System.out.print((char) c);
                filecon.write(c);
                filecon.flush();

            }
            filecon.close();
        }

    } catch (MalformedURLException ex) {
        System.err.println(path + " is not a parseable URL");
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

From source file:com.spoiledmilk.ibikecph.util.HttpUtils.java

public static JsonResult readLink(String url_string, String method) {
    JsonResult result = new JsonResult();
    if (url_string == null) {
        return result;
    }//from   ww w  . ja v a 2s . c  o  m
    URL url = null;
    HttpURLConnection httpget = null;
    try {
        LOG.d("HttpUtils readlink() " + url_string);
        url = new URL(url_string);
        httpget = (HttpURLConnection) url.openConnection();
        httpget.setDoInput(true);
        httpget.setRequestMethod(method);
        httpget.setRequestProperty("Accept", "application/json");
        httpget.setRequestProperty("Content-type", "application/json");
        httpget.setConnectTimeout(CONNECTON_TIMEOUT);
        httpget.setReadTimeout(CONNECTON_TIMEOUT);
        JsonNode root = null;
        root = Util.getJsonObjectMapper().readValue(httpget.getInputStream(), JsonNode.class);
        if (root != null) {
            result.setNode(root);
        }
    } catch (JsonParseException e) {
        LOG.w("HttpUtils readLink() JsonParseException ", e);
        result.error = JsonResult.ErrorCode.APIError;
    } catch (MalformedURLException e) {
        LOG.w("HttpUtils readLink() MalformedURLException", e);
        result.error = JsonResult.ErrorCode.APIError;
    } catch (FileNotFoundException e) {
        LOG.w("HttpUtils readLink() FileNotFoundException", e);
        result.error = JsonResult.ErrorCode.NotFound;
    } catch (IOException e) {
        LOG.w("HttpUtils readLink() IOException", e);
        result.error = JsonResult.ErrorCode.ConnectionError;
    } finally {
        if (httpget != null) {
            httpget.disconnect();
        }
    }
    LOG.d("HttpUtils readLink() "
            + (result != null && result.error == JsonResult.ErrorCode.Success ? "succeeded" : "failed"));
    return result;
}

From source file:edu.gmu.csiss.automation.pacs.utils.BaseTool.java

/**
 * send a HTTP POST request/*from w w w . jav a2s . com*/
 * @param param
 * @param input_url
 * @return
 */
public static String POST(String param, String input_url) {
    try {
        URL url = new URL(input_url);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
        con.setDoOutput(true);
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type", "application/xml");
        con.setDoOutput(true);
        con.setDoInput(true);
        con.setUseCaches(false);

        PrintWriter xmlOut = new PrintWriter(con.getOutputStream());
        xmlOut.write(param);
        xmlOut.flush();
        BufferedReader response = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String result = "";
        String line;
        while ((line = response.readLine()) != null) {
            result += "\n" + line;
        }
        return result.toString();
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:com.talk.demo.util.NetworkUtilities.java

public static void downloadPhoto(final String photoName) {
    // If there is no photo, we're done
    if (TextUtils.isEmpty(photoName)) {
        return;//from  w  w w .j a  va  2  s.  co m
    }

    try {
        Log.i(TAG, "Downloading photo: " + DOWNLOAD_PHOTO_URI);
        // Request the photo from the server, and create a bitmap
        // object from the stream we get back.
        URL url = new URL(DOWNLOAD_PHOTO_URI + photoName + "/");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.connect();
        try {
            final BitmapFactory.Options options = new BitmapFactory.Options();
            final Bitmap photo = BitmapFactory.decodeStream(connection.getInputStream(), null, options);

            Log.d(TAG, "file name : " + photoName);
            TalkUtil.createDirAndSaveFile(photo, photoName);
            // On pre-Honeycomb systems, it's important to call recycle on bitmaps
            photo.recycle();
        } finally {
            connection.disconnect();
        }
    } catch (MalformedURLException muex) {
        // A bad URL - nothing we can really do about it here...
        Log.e(TAG, "Malformed avatar URL: " + DOWNLOAD_PHOTO_URI);
    } catch (IOException ioex) {
        // If we're unable to download the avatar, it's a bummer but not the
        // end of the world. We'll try to get it next time we sync.
        Log.e(TAG, "Failed to download user avatar: " + DOWNLOAD_PHOTO_URI);
    }
}

From source file:io.helixservice.feature.configuration.cloudconfig.CloudConfigDecrypt.java

/**
 * Decrypt an encrypted string//  w  w  w .  j av a  2s. co  m
 * <p>
 * This method blocks on a HTTP request.
 *
 * @param name property or filename for reference/logging
 * @param encryptedValue Encrypted string
 * @param cloudConfigUri URI of the Cloud Config server
 * @param httpBasicHeader HTTP Basic header containing username and password for Cloud Config server
 * @return
 */
public static String decrypt(String name, String encryptedValue, String cloudConfigUri,
        String httpBasicHeader) {
    String result = encryptedValue;

    // Remove prefix if needed
    if (encryptedValue.startsWith(CIPHER_PREFIX)) {
        encryptedValue = encryptedValue.substring(CIPHER_PREFIX.length());
    }

    String decryptUrl = cloudConfigUri + "/decrypt";

    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(decryptUrl).openConnection();
        connection.setDoOutput(true);
        connection.setDoInput(true);

        connection.setRequestMethod("POST");
        connection.addRequestProperty(AUTHORIZATION_HEADER, httpBasicHeader);
        connection.setRequestProperty("Content-Type", "text/plain");
        connection.setRequestProperty("Content-Length", Integer.toString(encryptedValue.getBytes().length));
        connection.setRequestProperty("Accept", "*/*");

        // Write body
        OutputStream outputStream = connection.getOutputStream();
        outputStream.write(encryptedValue.getBytes());
        outputStream.close();

        if (connection.getResponseCode() == 200) {
            InputStream inputStream = connection.getInputStream();
            result = IOUtils.toString(inputStream);
            inputStream.close();
        } else {
            LOG.error("Unable to Decrypt name=" + name + " due to httpStatusCode="
                    + connection.getResponseCode() + " for decryptUrl=" + decryptUrl);
        }
    } catch (IOException e) {
        LOG.error("Unable to connect to Cloud Config server at decryptUrl=" + decryptUrl, e);
    }

    return result;
}

From source file:com.headswilllol.basiclauncher.Launcher.java

public static int getFileSize(URL url) {
    HttpURLConnection conn = null;
    try {/*  w w  w.jav a2s.  co m*/
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("HEAD"); // joke's on you if the server doesn't specify
        conn.getInputStream();
        return conn.getContentLength();
    } catch (Exception e) {
        return -1;
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

From source file:com.memetix.mst.MicrosoftTranslatorAPI.java

/**
 * Forms an HTTP request, sends it using GET method and returns the result of the request as a String.
 * //from w  ww  .  ja v a  2s  . co  m
 * @param url The URL to query for a String response.
 * @return The translated String.
 * @throws Exception on error.
 */
private static String retrieveResponse(final URL url) throws Exception {
    if (clientId != null && clientSecret != null && System.currentTimeMillis() > tokenExpiration) {
        String tokenJson = getToken(clientId, clientSecret);
        Integer expiresIn = Integer
                .parseInt((String) ((JSONObject) JSONValue.parse(tokenJson)).get("expires_in"));
        tokenExpiration = System.currentTimeMillis() + ((expiresIn * 1000) - 1);
        token = "Bearer " + (String) ((JSONObject) JSONValue.parse(tokenJson)).get("access_token");
    }
    final HttpURLConnection uc = (HttpURLConnection) url.openConnection();
    if (referrer != null)
        uc.setRequestProperty("referer", referrer);
    uc.setRequestProperty("Content-Type", contentType + "; charset=" + ENCODING);
    uc.setRequestProperty("Accept-Charset", ENCODING);
    if (token != null) {
        uc.setRequestProperty("Authorization", token);
    }
    uc.setRequestMethod("GET");
    uc.setDoOutput(true);

    try {
        final int responseCode = uc.getResponseCode();
        final String result = inputStreamToString(uc.getInputStream());
        if (responseCode != 200) {
            throw new Exception("Error from Microsoft Translator API: " + result);
        }
        return result;
    } finally {
        if (uc != null) {
            uc.disconnect();
        }
    }
}

From source file:ilearnrw.utils.ServerHelperClass.java

public static String sendPost(String link, String urlParameters) throws Exception {
    String url = baseUrl + link;/*from   w ww  .  ja  v  a  2s.co  m*/

    URL obj = new URL(url);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();

    con.setRequestMethod("POST");
    con.setRequestProperty("Authorization", userNamePasswordBase64("api", "api"));

    con.setRequestProperty("Content-Type", "application/json;charset=utf-8");
    con.setDoOutput(true);
    OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream(), "UTF8");

    wr.write(urlParameters);
    wr.flush();
    wr.close();
    int responseCode = con.getResponseCode();
    System.out.println("\nSending 'POST' request to URL : " + url);
    System.out.println("Post parameters : " + urlParameters);
    System.out.println("Response Code : " + responseCode);

    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
    String inputLine;
    StringBuffer response = new StringBuffer();

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

    return response.toString();
}