Example usage for java.net HttpURLConnection setRequestMethod

Introduction

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

Prototype

public void setRequestMethod(String method) throws ProtocolException 

Source Link

Document

Set the method for the URL request, one of:

• GET
• POST
• HEAD
• OPTIONS
• PUT
• DELETE
• TRACE

are legal, subject to protocol restrictions.

Usage

From source file:crow.weibo.util.WeiboUtil.java

public static String multipartPost(HttpURLConnection conn, List<PostParameter> params) throws IOException {
    OutputStream os;//from w  ww .java2 s  .c  o  m
    List<PostParameter> dataparams = new ArrayList<PostParameter>();
    for (PostParameter key : params) {
        if (key.isFile()) {
            dataparams.add(key);
        }
    }

    String BOUNDARY = Util.md5(String.valueOf(System.currentTimeMillis()));

    conn.setDoOutput(true);
    conn.setDoInput(true);
    conn.setUseCaches(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Connection", "Keep-Alive");
    conn.setRequestProperty("Charsert", "UTF-8");

    conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + BOUNDARY);

    ByteArrayBuffer buff = new ByteArrayBuffer(1000);

    for (PostParameter p : params) {
        byte[] arr = p.toMultipartByte(BOUNDARY, "UTF-8");
        buff.append(arr, 0, arr.length);
    }
    String end = "--" + BOUNDARY + "--" + "\r\n";
    byte[] endArr = end.getBytes();
    buff.append(endArr, 0, endArr.length);

    conn.setRequestProperty("Content-Length", buff.length() + "");
    conn.connect();
    os = new BufferedOutputStream(conn.getOutputStream());
    os.write(buff.toByteArray());
    buff.clear();
    os.flush();
    String response = "";
    response = Util.inputStreamToString(conn.getInputStream());
    return response;
}

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From source file:com.depas.utils.FileUtils.java

public static boolean fileExistByURL(String urlName) {
    try {// www.j  a v a 2  s . c o  m
        HttpURLConnection.setFollowRedirects(false);
        // note : you may also need
        //        HttpURLConnection.setInstanceFollowRedirects(false)
        HttpURLConnection con = (HttpURLConnection) new URL(urlName).openConnection();
        con.setRequestMethod("HEAD");
        return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
    } catch (Exception e) {
        logger.warn("Error checking if a file exists by URL [URLName=" + urlName + "]: " + e, e);
        return false;
    }
}

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From source file:com.iStudy.Study.Renren.Util.java

private static HttpURLConnection sendFormdata(String reqUrl, Bundle parameters, String fileParamName,
        String filename, String contentType, byte[] data) {
    HttpURLConnection urlConn = null;
    try {//ww w . j  a va 2s. com
        URL url = new URL(reqUrl);
        urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setRequestMethod("POST");
        urlConn.setConnectTimeout(5000);// ??jdk
        urlConn.setReadTimeout(5000);// ??jdk 1.5??,?
        urlConn.setDoOutput(true);

        urlConn.setRequestProperty("connection", "keep-alive");

        String boundary = "-----------------------------114975832116442893661388290519"; // 
        urlConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);

        boundary = "--" + boundary;
        StringBuffer params = new StringBuffer();
        if (parameters != null) {
            for (Iterator<String> iter = parameters.keySet().iterator(); iter.hasNext();) {
                String name = iter.next();
                String value = parameters.getString(name);
                params.append(boundary + "\r\n");
                params.append("Content-Disposition: form-data; name=\"" + name + "\"\r\n\r\n");
                // params.append(URLEncoder.encode(value, "UTF-8"));
                params.append(value);
                params.append("\r\n");
            }
        }

        StringBuilder sb = new StringBuilder();
        sb.append(boundary);
        sb.append("\r\n");
        sb.append("Content-Disposition: form-data; name=\"" + fileParamName + "\"; filename=\"" + filename
                + "\"\r\n");
        sb.append("Content-Type: " + contentType + "\r\n\r\n");
        byte[] fileDiv = sb.toString().getBytes();
        byte[] endData = ("\r\n" + boundary + "--\r\n").getBytes();
        byte[] ps = params.toString().getBytes();

        OutputStream os = urlConn.getOutputStream();
        os.write(ps);
        os.write(fileDiv);
        os.write(data);
        os.write(endData);

        os.flush();
        os.close();
    } catch (Exception e) {
        throw new RuntimeException(e.getMessage(), e);
    }
    return urlConn;
}

---

From source file:com.qpark.eip.core.spring.security.https.HttpsRequester.java

private static String read(final URL url, final String httpAuthBase64, final HostnameVerifier hostnameVerifier)
        throws IOException {
    StringBuffer sb = new StringBuffer(1024);
    HttpURLConnection connection = null;
    connection = (HttpURLConnection) url.openConnection();
    if (url.getProtocol().equalsIgnoreCase("https")) {
        connection = (HttpsURLConnection) url.openConnection();
        ((HttpsURLConnection) connection).setHostnameVerifier(hostnameVerifier);
    }/* w w  w .  j a  v  a2s  .  co m*/
    if (httpAuthBase64 != null) {
        connection.setRequestProperty("Authorization", new StringBuffer(httpAuthBase64.length() + 6)
                .append("Basic ").append(httpAuthBase64).toString());
    }
    connection.setRequestProperty("Content-Type", "text/plain; charset=\"utf8\"");
    connection.setRequestMethod("GET");

    int returnCode = connection.getResponseCode();
    InputStream connectionIn = null;
    if (returnCode == 200) {
        connectionIn = connection.getInputStream();
    } else {
        connectionIn = connection.getErrorStream();
    }
    BufferedReader buffer = new BufferedReader(new InputStreamReader(connectionIn));
    String inputLine;
    while ((inputLine = buffer.readLine()) != null) {
        sb.append(inputLine);
    }
    buffer.close();

    return sb.toString();
}

---

From source file:com.iStudy.Study.Renren.Util.java

private static HttpURLConnection openConn(String url, String method, Bundle params) {
    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }/*w  w w . j a  v a 2s .c  om*/
    try {
        Log.d(LOG_TAG, method + " URL: " + url);
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setRequestProperty("User-Agent", USER_AGENT_SDK);
        if (!method.equals("GET")) {
            conn.setRequestMethod("POST");
            conn.setDoOutput(true);
            conn.getOutputStream().write(encodeUrl(params).getBytes("UTF-8"));
        }
        return conn;
    } catch (Exception e) {
        Log.e(LOG_TAG, e.getMessage());
        throw new RuntimeException(e.getMessage(), e);
    }
}

---

From source file:com.dynamobi.db.conn.couchdb.CouchUdx.java

/**
 * Creates a CouchDB view//from   www . j av  a  2s .  com
 */
public static void makeView(String user, String pw, String url, String viewDef) throws SQLException {
    try {
        URL u = new URL(url);
        HttpURLConnection uc = (HttpURLConnection) u.openConnection();
        uc.setDoOutput(true);
        if (user != null && user.length() > 0) {
            uc.setRequestProperty("Authorization", "Basic " + buildAuthHeader(user, pw));
        }
        uc.setRequestProperty("Content-Type", "application/json");
        uc.setRequestMethod("PUT");
        OutputStreamWriter wr = new OutputStreamWriter(uc.getOutputStream());
        wr.write(viewDef);
        wr.close();

        String s = readStringFromConnection(uc);
    } catch (MalformedURLException e) {
        throw new SQLException("Bad URL.");
    } catch (IOException e) {
        throw new SQLException(e.getMessage());
    }
}

---

From source file:com.iStudy.Study.Renren.Util.java

/**
 * ??http/*from   ww w .  ja v  a 2s  .com*/
 * 
 * @param url
 * @param method GET  POST
 * @param params
 * @return
 */
public static String openUrl(String url, String method, Bundle params) {
    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    String response = "";
    try {
        Log.d(LOG_TAG, method + " URL: " + url);
        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
        conn.setRequestProperty("User-Agent", USER_AGENT_SDK);
        if (!method.equals("GET")) {
            conn.setRequestMethod("POST");
            conn.setDoOutput(true);
            conn.getOutputStream().write(encodeUrl(params).getBytes("UTF-8"));
        }

        InputStream is = null;
        int responseCode = conn.getResponseCode();
        if (responseCode == 200) {
            is = conn.getInputStream();
        } else {
            is = conn.getErrorStream();
        }
        response = read(is);
    } catch (Exception e) {
        throw new RuntimeException(e.getMessage(), e);
    }
    return response;
}

---

From source file:net.ftb.util.DownloadUtils.java

/**
 * @param file - file on the repo in static
 * @return boolean representing if the file exists 
 */// ww  w .  j  a  v  a  2 s.  c  om
public static boolean staticFileExists(String file) {
    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(getStaticCreeperhostLink(file))
                .openConnection();
        connection.setRequestProperty("Cache-Control", "no-transform");
        connection.setRequestMethod("HEAD");
        return (connection.getResponseCode() == 200);
    } catch (Exception e) {
        return false;
    }
}

---

From source file:net.ftb.util.DownloadUtils.java

/**
 * @param file - file on the repo//from  w w w. j  a  v  a  2 s .  c  om
 * @return boolean representing if the file exists 
 */
public static boolean fileExists(String file) {
    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(Locations.masterRepo + "/FTB2/" + file)
                .openConnection();
        connection.setRequestProperty("Cache-Control", "no-transform");
        connection.setRequestMethod("HEAD");
        return (connection.getResponseCode() == 200);
    } catch (Exception e) {
        return false;
    }
}

---

From source file:io.andyc.papercut.api.PrintApi.java

/**
 * Queries the remote Papercut server to get the status of the file
 *
 * e.g./*from ww  w.j  av  a 2s  .  com*/
 *
 * {"status":{"code":"hold-release","complete":false,"text":"Held in a
 * queue","formatted":"Held in a queue"},"documentName":"test.rtf",
 * "printer":"Floor1 (Full Colour)","pages":1,"cost":"$0.10"}
 *
 * @param printJob {PrintJob} - the file to check the status on
 *
 * @return {String} - JSON String which includes file metadata
 *
 * @throws NoStatusURLSetException
 * @throws IOException
 */
public static PrintStatusData getFileStatus(PrintJob printJob) throws NoStatusURLSetException, IOException {
    if (Objects.equals(printJob.getStatusCheckURL(), "") || printJob.getStatusCheckURL() == null) {
        throw new NoStatusURLSetException();
    }

    // from: http://stackoverflow.com/a/29889139/2605221
    StringBuilder stringBuffer = new StringBuilder("");
    URL url = new URL(printJob.getStatusCheckURL());
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestProperty("User-Agent", "");
    connection.setRequestMethod("GET");
    connection.setRequestProperty("Accept", "application/json");
    connection.setDoInput(true);
    connection.connect();

    InputStream inputStream = connection.getInputStream();

    BufferedReader rd = new BufferedReader(new InputStreamReader(inputStream));
    String line = "";
    while ((line = rd.readLine()) != null) {
        stringBuffer.append(line);
    }
    return new ObjectMapper().readValue(stringBuffer.toString(), PrintStatusData.class);
}

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