Example usage for java.net HttpURLConnection setRequestProperty

List of usage examples for java.net HttpURLConnection setRequestProperty

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Introduction

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

Prototype

public void setRequestProperty(String key, String value)

Source Link

Document

Sets the general request property.

Usage

From source file:Main.java

static void getHTTPXml(URL url) throws Exception {
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("POST");
    conn.setRequestProperty("ACCEPT", "application/xml");
    InputStream xml = conn.getInputStream();

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    org.w3c.dom.Document document = builder.parse(xml);

    System.out.println(document);
    String doctype = conn.getContentType();
    System.out.println(doctype);/*  ww  w.  j a v a2s  .  c  om*/

    XPathFactory pathFactory = XPathFactory.newInstance();
    XPath path = pathFactory.newXPath();
    XPathExpression expression;
    expression = path.compile("/result/checkid");
    NodeList nodeList = (NodeList) expression.evaluate(document, XPathConstants.NODESET);
    String checkids[] = getNodeValue(nodeList);
    for (String checkid : checkids) {
        System.out.print(checkid + ", ");
    }
    conn.disconnect();
}

From source file:Main.java

public static String getHtml(String getUrl, String charsetName) {
    String html = "";
    URL url;//from  w  w w .j a  v a 2 s. c  o m
    try {
        url = new URL(getUrl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("User-Agent", userAgent);
        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("Cache-Control", "no-cache");
        connection.setReadTimeout(timeout);
        connection.setFollowRedirects(true);
        connection.connect();
        InputStream inStrm = connection.getInputStream();

        BufferedReader br = new BufferedReader(new InputStreamReader(inStrm, charsetName));
        String temp = "";

        while ((temp = br.readLine()) != null) {
            html = html + (temp + '\n');
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return html;
}

From source file:Main.java

public static String deleteUrl(String url, Bundle params) throws MalformedURLException, IOException {
    System.setProperty("http.keepAlive", "false");
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent", System.getProperties().getProperty("http.agent") + " agent");
    conn.setRequestMethod("DELETE");
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setDoOutput(false);//from  w  w w  .j a  va 2 s.  c  o  m
    conn.setDoInput(true);
    //conn.setRequestProperty("Connection", "Keep-Alive");
    conn.connect();

    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:Main.java

public static byte[] retrieveImageData_fromUrl(String imageUrl) throws IOException {
    URL url = new URL(imageUrl);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");

    // determine the image size and allocate a buffer
    int fileSize = connection.getContentLength();
    byte[] imageData = new byte[fileSize];

    // download the file
    Log.d(TAG, "fetching image " + imageUrl + " (" + fileSize + ")");

    if (fileSize > 0) {

        BufferedInputStream istream = new BufferedInputStream(connection.getInputStream());
        int bytesRead = 0;
        int offset = 0;
        while (bytesRead != -1 && offset < fileSize) {
            bytesRead = istream.read(imageData, offset, fileSize - offset);
            offset += bytesRead;//from   w  ww.  j a  v a2 s. com
        }

        istream.close();
    } else
        Log.d(TAG, "fileSize is 0! skipping");

    // clean up
    connection.disconnect();

    return imageData;
}

From source file:Main.java

static String downloadUrl(String myurl) throws IOException {
    InputStream is = null;//from  ww  w  .  j a  v a 2  s .  co  m

    try {
        URL url = new URL(myurl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "Basic cm9vdDpvcmllbnRkYg==");
        conn.setReadTimeout(10000);
        conn.setConnectTimeout(15000);
        conn.setRequestMethod("GET");
        conn.setDoInput(true);
        //start
        conn.connect();
        int response = conn.getResponseCode();
        Log.e("The response is: ", "" + response);
        is = conn.getInputStream();
        //converte inputStream in stringa
        String contentAsString = readIt(is);
        return contentAsString;
    } catch (IOException e) {
        Log.e("HTTP", e.getMessage());
        return null;
    } finally {
        if (is != null) {
            is.close();
        }
    }
}

From source file:Main.java

static String downloadHtml(String urlString) {
    StringBuffer buffer = new StringBuffer();

    try {/*from  www .  java 2 s  . co  m*/
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        HttpURLConnection.setFollowRedirects(true);
        conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
        String encoding = conn.getContentEncoding();
        InputStream inStr = null;

        if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
            inStr = new GZIPInputStream(conn.getInputStream());
        } else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
            inStr = new InflaterInputStream(conn.getInputStream(), new Inflater(true));
        } else {
            inStr = conn.getInputStream();
        }
        int ptr = 0;
        InputStreamReader inStrReader = new InputStreamReader(inStr, Charset.forName("GB2312"));

        while ((ptr = inStrReader.read()) != -1) {
            buffer.append((char) ptr);
        }
        inStrReader.close();
        conn.disconnect();
        inStr.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return buffer.toString();
}

From source file:Main.java

public static String getHtml(String getUrl, int outtime, String charsetName) {
    String html = "";
    URL url;//from   w  ww. ja  v  a  2  s.com
    try {
        url = new URL(getUrl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("User-Agent",
                "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoPath.1; CIBA)");
        // connection.setRequestProperty("Connection", "Keep-Alive");
        // connection.setRequestProperty("Cache-Control", "no-cache");
        connection.setConnectTimeout(outtime);
        connection.connect();
        InputStream inStrm = connection.getInputStream();

        BufferedReader br = new BufferedReader(new InputStreamReader(inStrm, charsetName));
        String temp = "";

        while ((temp = br.readLine()) != null) {
            html = html + (temp + '\n');
        }
        try {
            br.close();
        } catch (Exception e) {
            // TODO: handle exception
        }
        try {
            connection.disconnect();
        } catch (Exception e) {
            // TODO: handle exception
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return html;
}

From source file:Main.java

public static HttpURLConnection buildConnection(String url, String requestMethod) throws IOException {
    HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
    /*set request*/
    con.setRequestMethod(requestMethod);
    con.setRequestProperty("Accept-Language", "UTF-8");
    con.setDoOutput(true);/*from   www .j  a v a2  s  .c  om*/
    return con;
}

From source file:me.bramhaag.discordselfbot.util.Util.java

/**
 * Get image from URL.//from www  .  j  a v a2 s  .c  o  m
 * @param url url to get image from.
 * @return image.
 *
 * @throws IOException if an I/O error occurs while creating the input stream.
 */
@NonNull
public static BufferedImage getImage(@NonNull String url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setRequestProperty("User-Agent", Constants.USER_AGENT);

    return ImageIO.read(connection.getInputStream());
}

From source file:Main.java

public static byte[] getBytes(String url) {
    try {//from  w  ww .  java2  s  . c  om
        URL u = new URL(url);
        HttpURLConnection connection = (HttpURLConnection) u.openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty("Charset", "UTF-8");
        InputStream is = connection.getInputStream();
        int contentLength = connection.getContentLength();
        byte[] data = new byte[contentLength];
        int alreadyRead = 0;
        int len = 0;
        while (alreadyRead < contentLength) {
            len = is.read(data, alreadyRead, contentLength - alreadyRead);
            alreadyRead += len;
        }
        is.close();
        return data;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }

}