Example usage for java.net HttpURLConnection setFollowRedirects

Introduction

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

Prototype

public static void setFollowRedirects(boolean set) 

Source Link

Document

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

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    HttpURLConnection.setFollowRedirects(false);
    HttpURLConnection con = (HttpURLConnection) new URL("http://www.google.coom").openConnection();
    con.setRequestMethod("HEAD");
    System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_PARTIAL);
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    HttpURLConnection.setFollowRedirects(false);
    HttpURLConnection con = (HttpURLConnection) new URL("http://www.google.coom").openConnection();
    con.setRequestMethod("HEAD");
    System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_MOVED_TEMP);
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    HttpURLConnection.setFollowRedirects(false);
    HttpURLConnection con = (HttpURLConnection) new URL("http://www.google.coom").openConnection();
    con.setRequestMethod("HEAD");
    System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_NOT_AUTHORITATIVE);
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    HttpURLConnection.setFollowRedirects(false);

    URL url = new URL("http://hostname:80");
    URLConnection conn = url.openConnection();

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

    conn.connect();/*from   w  ww.ja va2  s .  co m*/
}

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From source file:Main.java

public static String getHtml(String getUrl, String charsetName) {
    String html = "";
    URL url;/*  w  w w. jav a 2  s  .  c om*/
    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

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

    try {/*from   w  w  w.  j  a  v a 2 s.c  o 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 getPosthtml(String posturl, String postData, String encode) {

    String html = "";
    URL url;/*  w w  w. jav a  2  s  .co  m*/
    try {
        url = new URL(posturl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        connection.setRequestProperty("User-Agent", userAgent);

        String postDataStr = postData;
        byte[] bytes = postDataStr.getBytes("utf-8");
        connection.setRequestProperty("Content-Length", "" + bytes.length);
        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("Cache-Control", "no-cache");
        connection.setDoOutput(true);
        connection.setReadTimeout(timeout);
        connection.setFollowRedirects(true);
        connection.connect();
        OutputStream outStrm = connection.getOutputStream();
        outStrm.write(bytes);
        outStrm.flush();
        outStrm.close();
        InputStream inStrm = connection.getInputStream();

        BufferedReader br = new BufferedReader(new InputStreamReader(inStrm, encode));

        String temp = "";
        while ((temp = br.readLine()) != null) {
            html += (temp + '\n');
        }
        br.close();
        connection.disconnect();

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

}

---

From source file:com.comcast.cmb.test.tools.CNSTestingUtils.java

public static String sendHttpMessage(String endpoint, String message) throws Exception {

    if ((message == null) || (endpoint == null)) {
        throw new Exception("Message and Endpoint must both be set");
    }/*from   ww  w  .j a  va 2  s .  co m*/

    String newPostBody = message;
    byte newPostBodyBytes[] = newPostBody.getBytes();

    URL url = new URL(endpoint);

    logger.info(">> " + url.toString());

    HttpURLConnection con = (HttpURLConnection) url.openConnection();

    con.setRequestMethod("GET"); // POST no matter what
    con.setDoOutput(true);
    con.setDoInput(true);
    con.setFollowRedirects(false);
    con.setUseCaches(true);

    logger.info(">> " + "GET");

    //con.setRequestProperty("content-length", newPostBody.length() + "");
    con.setRequestProperty("host", url.getHost());

    con.connect();

    logger.info(">> " + newPostBody);

    int statusCode = con.getResponseCode();

    BufferedInputStream responseStream;

    logger.info("StatusCode:" + statusCode);

    if (statusCode != 200 && statusCode != 201) {

        responseStream = new BufferedInputStream(con.getErrorStream());
    } else {
        responseStream = new BufferedInputStream(con.getInputStream());
    }

    int b;
    String response = "";

    while ((b = responseStream.read()) != -1) {
        response += (char) b;
    }

    logger.info("response:" + response);
    return response;
}

---

From source file:org.bibsonomy.scraper.url.kde.blackwell.BlackwellSynergyScraper.java

/** FIXME: refactor
 * Extract the content of a scitation.aip.org page.
 * (changed code from ScrapingContext.getContentAsString)
 * @param urlConn Connection to api page (from url.openConnection())
 * @param cookie Cookie for auth.//from  w w w . j a  v a  2  s  . c o  m
 * @return Content of aip page.
 * @throws IOException
 */
private String getPageContent(HttpURLConnection urlConn, String cookie) throws IOException {

    urlConn.setAllowUserInteraction(true);
    urlConn.setDoInput(true);
    urlConn.setDoOutput(false);
    urlConn.setUseCaches(false);
    urlConn.setFollowRedirects(true);
    urlConn.setInstanceFollowRedirects(false);
    urlConn.setRequestProperty("Cookie", cookie);

    urlConn.setRequestProperty("User-Agent",
            "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)");
    urlConn.connect();

    // build content
    StringWriter out = new StringWriter();
    InputStream in = new BufferedInputStream(urlConn.getInputStream());
    int b;
    while ((b = in.read()) >= 0) {
        out.write(b);
    }

    urlConn.disconnect();
    in.close();
    out.flush();
    out.close();

    return out.toString();
}

---

From source file:org.bibsonomy.scraper.url.kde.blackwell.BlackwellSynergyScraper.java

/** FIXME: refactor
 * Gets the cookie which is needed to extract the content of aip pages.
 * (changed code from ScrapingContext.getContentAsString) 
 * @param urlConn Connection to api page (from url.openConnection())
 * @return The value of the cookie.// w  w  w. ja v a 2  s  . c om
 * @throws IOException
 */
private String getCookie() throws IOException {
    HttpURLConnection urlConn = (HttpURLConnection) new URL("http://www.blackwell-synergy.com/help")
            .openConnection();
    String cookie = null;

    urlConn.setAllowUserInteraction(true);
    urlConn.setDoInput(true);
    urlConn.setDoOutput(false);
    urlConn.setUseCaches(false);
    urlConn.setFollowRedirects(true);
    urlConn.setInstanceFollowRedirects(false);

    urlConn.setRequestProperty("User-Agent",
            "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)");
    urlConn.connect();

    // extract cookie from header
    Map map = urlConn.getHeaderFields();
    cookie = urlConn.getHeaderField("Set-Cookie");
    if (cookie != null && cookie.indexOf(";") >= 0)
        cookie = cookie.substring(0, cookie.indexOf(";"));

    urlConn.disconnect();
    return cookie;
}

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