Example usage for java.net HttpURLConnection setInstanceFollowRedirects

Introduction

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

Prototype

public void setInstanceFollowRedirects(boolean followRedirects) 

Source Link

Document

Sets whether HTTP redirects (requests with response code 3xx) should be automatically followed by this HttpURLConnection instance.

Usage

From source file:jmc.util.UtlFbComents.java

public static void getURLComentarios(String url, Long numComents) throws JMCException {

    File f = null;/*from   ww  w  . ja v a2  s .  c o m*/

    try {
        Properties props = ConfigPropiedades.getProperties("props_config.properties");
        CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
        URL ur = new URL(
                "http://graph.facebook.com/comments?id=" + url + "&limit=" + numComents + "&filter=stream");
        HttpURLConnection cn = (HttpURLConnection) ur.openConnection();

        cn.setRequestProperty("user-agent", props.getProperty("navegador"));
        cn.setInstanceFollowRedirects(false);
        cn.setUseCaches(false);
        cn.connect();

        BufferedReader br = new BufferedReader(new InputStreamReader(cn.getInputStream()));
        String dirTempHtml = props.getProperty("archive_json") + "/";
        File fld = new File(dirTempHtml);

        boolean creado = fld.exists() ? true : fld.mkdir();

        if (creado) {
            String archFile = "archivo.json";
            String archivo = dirTempHtml + archFile;
            String linea = null;

            f = new File(archivo);
            BufferedWriter bw = new BufferedWriter(new FileWriter(f));
            while ((linea = br.readLine()) != null) {
                bw.append(linea);
            }
            bw.close();

            cn.disconnect();

            List<Fbcoment> lfb = Convertidor.getFbcomentObjects(1l, archivo);
            // Fbcoment.actComents(idContenido, lfb);

        } else {
            cn.disconnect();
        }

    } catch (IOException e) {
        throw new JMCException(e);
    }
}

---

From source file:jmc.util.UtlFbComents.java

public static void getComentarios(Long idContenido, Long numComents) throws JMCException {

    File f = null;//from  www  . j  a  va 2  s  .  c  om

    try {
        Properties props = ConfigPropiedades.getProperties("props_config.properties");
        CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
        URL ur = new URL("http://graph.facebook.com/comments?id="
                + Contenido.getContenido("Where cont_id = '" + idContenido + "'").get(0).getEnlaceURL()
                + "&limit=" + numComents + "&filter=stream");
        HttpURLConnection cn = (HttpURLConnection) ur.openConnection();

        cn.setRequestProperty("user-agent", props.getProperty("navegador"));
        cn.setInstanceFollowRedirects(false);
        cn.setUseCaches(false);
        cn.connect();

        BufferedReader br = new BufferedReader(new InputStreamReader(cn.getInputStream()));
        String dirTempHtml = props.getProperty("archive_json") + "/";
        File fld = new File(dirTempHtml);

        boolean creado = fld.exists() ? true : fld.mkdir();

        if (creado) {
            String archFile = idContenido + ".json";
            String archivo = dirTempHtml + archFile;
            String linea = null;

            f = new File(archivo);
            BufferedWriter bw = new BufferedWriter(new FileWriter(f));
            while ((linea = br.readLine()) != null) {
                bw.append(linea);
            }
            bw.close();

            cn.disconnect();

            List<Fbcoment> lfb = Convertidor.getFbcomentObjects(idContenido, archivo);
            Fbcoment.actComents(idContenido, lfb);

        } else {
            cn.disconnect();
        }

    } catch (IOException e) {
        throw new JMCException(e);
    }
}

---

From source file:Main.java

/**
 * Return an {@link InputStream} from the given url or null if failed to retrieve the content
 * /* w w  w  .  ja  v  a2s.c  o  m*/
 * @param uri
 * @return
 */
static InputStream openRemoteInputStream(Uri uri) {
    java.net.URL finalUrl;
    try {
        finalUrl = new java.net.URL(uri.toString());
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;
    }

    HttpURLConnection connection;
    try {
        connection = (HttpURLConnection) finalUrl.openConnection();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    connection.setInstanceFollowRedirects(false);
    int code;
    try {
        code = connection.getResponseCode();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    // permanent redirection
    if (code == HttpURLConnection.HTTP_MOVED_PERM || code == HttpURLConnection.HTTP_MOVED_TEMP
            || code == HttpURLConnection.HTTP_SEE_OTHER) {
        String newLocation = connection.getHeaderField("Location");
        return openRemoteInputStream(Uri.parse(newLocation));
    }

    try {
        return (InputStream) finalUrl.getContent();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

---

From source file:com.fastbootmobile.encore.api.common.HttpGet.java

/**
 * Downloads the data from the provided URL.
 * @param inUrl The URL to get from/*ww w . j ava 2s .  c  om*/
 * @param query The query field. '?' + query will be appended automatically, and the query data
 *              MUST be encoded properly.
 * @return A byte array of the data
 */
public static byte[] getBytes(String inUrl, String query, boolean cached)
        throws IOException, RateLimitException {
    final String formattedUrl = inUrl + (query.isEmpty() ? "" : ("?" + query));

    Log.d(TAG, "Formatted URL: " + formattedUrl);

    URL url = new URL(formattedUrl);
    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
    urlConnection.setRequestProperty("User-Agent", "OmniMusic/1.0-dev (http://www.omnirom.org)");
    urlConnection.setUseCaches(cached);
    urlConnection.setInstanceFollowRedirects(true);
    int maxStale = 60 * 60 * 24 * 28; // tolerate 4-weeks stale
    urlConnection.addRequestProperty("Cache-Control", "max-stale=" + maxStale);
    try {
        final int status = urlConnection.getResponseCode();
        // MusicBrainz returns 503 Unavailable on rate limit errors. Parse the JSON anyway.
        if (status == HttpURLConnection.HTTP_OK) {
            InputStream in = new BufferedInputStream(urlConnection.getInputStream());
            int contentLength = urlConnection.getContentLength();
            if (contentLength <= 0) {
                // No length? Let's allocate 100KB.
                contentLength = 100 * 1024;
            }
            ByteArrayBuffer bab = new ByteArrayBuffer(contentLength);
            BufferedInputStream bis = new BufferedInputStream(in);
            int character;

            while ((character = bis.read()) != -1) {
                bab.append(character);
            }
            return bab.toByteArray();
        } else if (status == HttpURLConnection.HTTP_NOT_FOUND) {
            // 404
            return new byte[] {};
        } else if (status == HttpURLConnection.HTTP_FORBIDDEN) {
            return new byte[] {};
        } else if (status == HttpURLConnection.HTTP_UNAVAILABLE) {
            throw new RateLimitException();
        } else if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
                || status == 307 /* HTTP/1.1 TEMPORARY REDIRECT */
                || status == HttpURLConnection.HTTP_SEE_OTHER) {
            // We've been redirected, follow the new URL
            final String followUrl = urlConnection.getHeaderField("Location");
            Log.e(TAG, "Redirected to: " + followUrl);
            return getBytes(followUrl, "", cached);
        } else {
            Log.e(TAG, "Error when fetching: " + formattedUrl + " (" + urlConnection.getResponseCode() + ")");
            return new byte[] {};
        }
    } finally {
        urlConnection.disconnect();
    }
}

---

From source file:mashapeautoloader.MashapeAutoloader.java

/**
 * @param libraryName/*from w  w  w  . j  av a2s  . com*/
 *
 * Returns false if something wrong, otherwise true (API interface
 * already exists or just well downloaded)
 */
private static boolean downloadLib(String libraryName) {
    URL url;
    URLConnection urlConn;

    // check (or make) for apiStore directory
    File apiStoreDir = new File(apiStore);
    if (!apiStoreDir.isDirectory())
        apiStoreDir.mkdir();

    String javaFilePath = apiStore + libraryName + ".java";
    File javaFile = new File(javaFilePath);

    // check if the API interface exists
    if (javaFile.exists())
        return true;
    try {
        // download the API interface's archive
        url = new URL(MASHAPE_DOWNLOAD_ROOT + libraryName);
        urlConn = url.openConnection();

        HttpURLConnection httpConn = (HttpURLConnection) urlConn;
        httpConn.setInstanceFollowRedirects(false);

        urlConn.setDoInput(true);
        urlConn.setDoOutput(false);
        urlConn.setUseCaches(false);

        // extract the archive stream
        ZipInputStream zip = new ZipInputStream(urlConn.getInputStream());
        String expectedEntryName = libraryName + ".java";
        while (true) {
            ZipEntry nextEntry = zip.getNextEntry();
            if (nextEntry == null)
                return false;

            String name = nextEntry.getName();
            if (name.equals(expectedEntryName)) {
                // save .java locally
                FileOutputStream javaFileStream = new FileOutputStream(javaFilePath);
                byte[] buf = new byte[1024];
                int n;
                while ((n = zip.read(buf, 0, 1024)) > -1)
                    javaFileStream.write(buf, 0, n);

                // compile it into .class file
                JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
                int result = compiler.run(null, null, null, javaFilePath);
                System.out.println(result);
                return result == 0;
            }
        }
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

---

From source file:qurandwnld.SyncDbHelper.java

public static ServerResponse bringMorag3ahFromServer(String username, String password) throws Exception {
    String urlParameters = String.format("username=%s&password=%s", URLEncoder.encode(username, "UTF-8"),
            URLEncoder.encode(password, "UTF-8"));
    byte[] postData = urlParameters.getBytes(StandardCharsets.UTF_8);
    int postDataLength = postData.length;
    String request = "http://localhost:55622/Server/GetMorag3ahSelections";
    URL url = new URL(request);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoOutput(true);//from  ww w. j a v  a 2 s  . c  o m
    conn.setInstanceFollowRedirects(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setRequestProperty("charset", "utf-8");
    conn.setRequestProperty("Content-Length", Integer.toString(postDataLength));
    conn.setUseCaches(false);
    try (DataOutputStream wr = new DataOutputStream(conn.getOutputStream())) {
        wr.write(postData);
    }
    Reader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
    StringBuilder json = new StringBuilder();
    for (int c = in.read(); c != -1; c = in.read())
        json.append((char) c);
    String str = json.toString();
    int idx = str.indexOf(":");
    ServerResponse res = new ServerResponse();
    res.code = Integer.parseInt(str.substring(0, idx));
    res.message = str.substring(idx + 2);
    if (res.code == 200) {
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder;
        dBuilder = dbFactory.newDocumentBuilder();
        Document doc;
        try (ByteArrayInputStream stream = new ByteArrayInputStream(
                res.message.getBytes(StandardCharsets.UTF_8))) {
            doc = dBuilder.parse(stream);
        }
        res.message = null;
        doc.getDocumentElement().normalize();
        Connection c = DbHelper.CONNECTION;
        try (Statement s = c.createStatement()) {
            s.executeUpdate("DELETE FROM DorrahShahed_Others");
            NodeList nList = doc.getElementsByTagName("DorrahShahed");
            for (int temp = 0; temp < nList.getLength(); temp++) {
                Node nNode = nList.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    s.executeUpdate(String.format(
                            "INSERT INTO DorrahShahed_Others (DetailID, BeitID, BeitPart, IsNew, IsDeleted) "
                                    + "VALUES (%d, %d, %d, 0, 0)",
                            Integer.parseInt(eElement.getAttribute("DetailID")),
                            Integer.parseInt(eElement.getAttribute("BeitID")),
                            Integer.parseInt(eElement.getAttribute("BeitPart"))));
                }
            }

            s.executeUpdate("DELETE FROM ShatibiyyahShahed_Others");
            nList = doc.getElementsByTagName("ShatibiyyahShahed");
            for (int temp = 0; temp < nList.getLength(); temp++) {
                Node nNode = nList.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    s.executeUpdate(String.format(
                            "INSERT INTO ShatibiyyahShahed_Others (DetailID, BeitID, BeitPart, IsNew, IsDeleted) "
                                    + "VALUES (%d, %d, %d, 0, 0)",
                            Integer.parseInt(eElement.getAttribute("DetailID")),
                            Integer.parseInt(eElement.getAttribute("BeitID")),
                            Integer.parseInt(eElement.getAttribute("BeitPart"))));
                }
            }
        }
    }
    return res;
}

---

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

public static String doPOST(String urlstr, List<BasicNameValuePair> params) throws IOException {
    String result = null;// w  w  w .  jav  a  2 s .com
    URL url = new URL(urlstr);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoOutput(true);
    connection.setDoInput(true);
    connection.setRequestMethod("POST");
    connection.setUseCaches(false);
    connection.setInstanceFollowRedirects(false);
    connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    //       connection.setRequestProperty("token",token);
    connection.setConnectTimeout(30000);
    connection.setReadTimeout(30000);
    connection.connect();

    DataOutputStream out = new DataOutputStream(connection.getOutputStream());

    String content = "";
    if (params != null && params.size() > 0) {
        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");
        }
        out.writeBytes(content.substring(1));
    }

    out.flush();
    out.close();
    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:pt.ist.maidSyncher.api.activeCollab.JsonRest.java

public static Object processGet(String urlStr) throws IOException {
    URL url = new URL(urlStr);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoOutput(true);//  w  ww  .  j av a 2  s  .c o  m
    conn.setDoInput(true);
    conn.setInstanceFollowRedirects(false);
    conn.setRequestMethod("GET");
    conn.setRequestProperty("Content-Type", "text/plain");
    conn.setRequestProperty("charset", "utf-8");
    conn.connect();
    InputStream is = conn.getInputStream();
    try {
        BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
        String jsonText = readAll(rd);
        LOGGER.trace(jsonText);
        return JSONValue.parse(jsonText);
    } finally {
        is.close();
        conn.disconnect();
    }
}

---

From source file:Main.java

public static String customrequest(String url, HashMap<String, String> params, String method) {
    try {/*from   ww w . java2 s . c o m*/

        URL postUrl = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) postUrl.openConnection();
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setConnectTimeout(5 * 1000);

        conn.setRequestMethod(method);
        conn.setUseCaches(false);
        conn.setInstanceFollowRedirects(true);
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows XP; DigExt)");

        conn.connect();
        OutputStream out = conn.getOutputStream();
        StringBuilder sb = new StringBuilder();
        if (null != params) {
            int i = params.size();
            for (Map.Entry<String, String> entry : params.entrySet()) {
                if (i == 1) {
                    sb.append(entry.getKey() + "=" + entry.getValue());
                } else {
                    sb.append(entry.getKey() + "=" + entry.getValue() + "&");
                }

                i--;
            }
        }
        String content = sb.toString();
        out.write(content.getBytes("UTF-8"));
        out.flush();
        out.close();
        InputStream inStream = conn.getInputStream();
        String result = inputStream2String(inStream);
        conn.disconnect();
        return result;
    } catch (Exception e) {
        // TODO: handle exception
    }
    return null;
}

---

From source file:chen.android.toolkit.network.HttpConnection.java

/**
 * </br><b>title : </b>      ????POST??
 * </br><b>description :</b>????POST??
 * </br><b>time :</b>      2012-7-8 ?4:34:08
 * @param method         ??//w  w  w .  j a  v  a  2 s  .co  m
 * @param url            POSTURL
 * @param datas            ????
 * @return               ???
 * @throws IOException
 */
private static InputStream connect(String method, URL url, byte[]... datas) throws IOException {
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoOutput(true);
    conn.setDoInput(true);
    conn.setRequestMethod(method);
    conn.setUseCaches(false);
    conn.setInstanceFollowRedirects(true);
    conn.setConnectTimeout(6 * 1000);
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setRequestProperty("Connection", "Keep-Alive");
    conn.setRequestProperty("Charset", "UTF-8");
    OutputStream outputStream = conn.getOutputStream();
    for (byte[] data : datas) {
        outputStream.write(data);
    }
    outputStream.close();
    return conn.getInputStream();
}

---

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