Example usage for java.net HttpURLConnection setDoOutput

List of usage examples for java.net HttpURLConnection setDoOutput

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Introduction

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

Prototype

public void setDoOutput(boolean dooutput)

Source Link

Document

Sets the value of the doOutput field for this URLConnection to the specified value.

Usage

From source file:eu.geopaparazzi.library.network.NetworkUtilities.java

/**
 * Sends a string via POST to a given url.
 * //from w  ww .j a  va 2  s  .co m
 * @param urlStr the url to which to send to.
 * @param string the string to send as post body.
 * @param user the user or <code>null</code>.
 * @param password the password or <code>null</code>.
 * @return the response.
 * @throws Exception
 */
public static String sendPost(String urlStr, String string, String user, String password) throws Exception {
    BufferedOutputStream wr = null;
    HttpURLConnection conn = null;
    try {
        conn = makeNewConnection(urlStr);
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        // conn.setChunkedStreamingMode(0);
        conn.setUseCaches(false);
        if (user != null && password != null) {
            conn.setRequestProperty("Authorization", getB64Auth(user, password));
        }
        conn.connect();

        // Make server believe we are form data...
        wr = new BufferedOutputStream(conn.getOutputStream());
        byte[] bytes = string.getBytes();
        wr.write(bytes);
        wr.flush();

        int responseCode = conn.getResponseCode();
        StringBuilder returnMessageBuilder = new StringBuilder();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
            while (true) {
                String line = br.readLine();
                if (line == null)
                    break;
                returnMessageBuilder.append(line + "\n");
            }
            br.close();
        }

        return returnMessageBuilder.toString();
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

From source file:org.alfresco.mobile.android.api.network.NetworkHttpInvoker.java

private static Response invoke(UrlBuilder url, String method, String contentType,
        Map<String, List<String>> httpHeaders, Output writer, boolean forceOutput, BigInteger offset,
        BigInteger length, Map<String, String> params) {
    try {//w  w  w. j av a  2 s  .c o m
        // Log.d("URL", url.toString());

        // connect
        HttpURLConnection conn = (HttpURLConnection) (new URL(url.toString())).openConnection();
        conn.setRequestMethod(method);
        conn.setDoInput(true);
        conn.setDoOutput(writer != null || forceOutput);
        conn.setAllowUserInteraction(false);
        conn.setUseCaches(false);
        conn.setRequestProperty("User-Agent", ClientVersion.OPENCMIS_CLIENT);

        // set content type
        if (contentType != null) {
            conn.setRequestProperty("Content-Type", contentType);
        }
        // set other headers
        if (httpHeaders != null) {
            for (Map.Entry<String, List<String>> header : httpHeaders.entrySet()) {
                if (header.getValue() != null) {
                    for (String value : header.getValue()) {
                        conn.addRequestProperty(header.getKey(), value);
                    }
                }
            }
        }

        // range
        BigInteger tmpOffset = offset;
        if ((tmpOffset != null) || (length != null)) {
            StringBuilder sb = new StringBuilder("bytes=");

            if ((tmpOffset == null) || (tmpOffset.signum() == -1)) {
                tmpOffset = BigInteger.ZERO;
            }

            sb.append(tmpOffset.toString());
            sb.append("-");

            if ((length != null) && (length.signum() == 1)) {
                sb.append(tmpOffset.add(length.subtract(BigInteger.ONE)).toString());
            }

            conn.setRequestProperty("Range", sb.toString());
        }

        conn.setRequestProperty("Accept-Encoding", "gzip,deflate");

        // add url form parameters
        if (params != null) {
            DataOutputStream ostream = null;
            OutputStream os = null;
            try {
                os = conn.getOutputStream();
                ostream = new DataOutputStream(os);

                Set<String> parameters = params.keySet();
                StringBuffer buf = new StringBuffer();

                int paramCount = 0;
                for (String it : parameters) {
                    String parameterName = it;
                    String parameterValue = (String) params.get(parameterName);

                    if (parameterValue != null) {
                        parameterValue = URLEncoder.encode(parameterValue, "UTF-8");
                        if (paramCount > 0) {
                            buf.append("&");
                        }
                        buf.append(parameterName);
                        buf.append("=");
                        buf.append(parameterValue);
                        ++paramCount;
                    }
                }
                ostream.writeBytes(buf.toString());
            } finally {
                if (ostream != null) {
                    ostream.flush();
                    ostream.close();
                }
                IOUtils.closeStream(os);
            }
        }

        // send data

        if (writer != null) {
            // conn.setChunkedStreamingMode((64 * 1024) - 1);
            OutputStream connOut = null;
            connOut = conn.getOutputStream();
            OutputStream out = new BufferedOutputStream(connOut, BUFFER_SIZE);
            writer.write(out);
            out.flush();
        }

        // connect
        conn.connect();

        // get stream, if present
        int respCode = conn.getResponseCode();
        InputStream inputStream = null;
        if ((respCode == HttpStatus.SC_OK) || (respCode == HttpStatus.SC_CREATED)
                || (respCode == HttpStatus.SC_NON_AUTHORITATIVE_INFORMATION)
                || (respCode == HttpStatus.SC_PARTIAL_CONTENT)) {
            inputStream = conn.getInputStream();
        }

        // get the response
        return new Response(respCode, conn.getResponseMessage(), conn.getHeaderFields(), inputStream,
                conn.getErrorStream());
    } catch (Exception e) {
        throw new CmisConnectionException("Cannot access " + url + ": " + e.getMessage(), e);
    }
}

From source file:org.grameenfoundation.consulteca.utils.HttpHelpers.java

/**
 * Does an HTTP post for a given form data string.
 *
 * @param data is the form data string.//from ww w  .j  a  v a 2s  . co m
 * @param url  is the url to post to.
 * @return the return string from the server.
 * @throws java.io.IOException
 */
public static String postData(String data, URL url) throws IOException {

    String result = null;

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

    try {
        HttpHelpers.addCommonHeaders(conn);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        conn.setConnectTimeout(HttpHelpers.NETWORK_TIMEOUT);
        conn.setReadTimeout(HttpHelpers.NETWORK_TIMEOUT);
        conn.setRequestProperty("Content-Length", "" + Integer.toString(data.getBytes().length));

        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());

        writer.write(data);
        writer.flush();
        writer.close();

        String line;
        BufferedReader reader = (BufferedReader) getUncompressedResponseReader(conn);
        while ((line = reader.readLine()) != null) {
            if (result == null)
                result = line;
            else
                result += line;
        }

        reader.close();
    } catch (IOException ex) {
        Log.e(TAG, "Failed to read stream data", ex);

        String error = null;

        // TODO Am not yet sure if the section below should make it in the production release.
        // I mainly use it to get details of a failed http request. I get a FileNotFoundException
        // when actually the url is correct but an exception was thrown at the server and i use this
        // to get the server call stack for debugging purposes.
        try {
            String line;
            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
            while ((line = reader.readLine()) != null) {
                if (error == null)
                    error = line;
                else
                    error += line;
            }

            reader.close();
        } catch (Exception e) {
            Log.e(TAG, "Problem encountered while trying to get error information:" + error, ex);
        }
    }

    return result;
}

From source file:io.apiman.manager.test.es.ESMetricsAccessorTest.java

private static void loadTestData() throws Exception {
    String url = "http://localhost:6500/_bulk";
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestMethod("POST");
    conn.setDoInput(true);//ww  w.j  a  v a2  s .  c  o m
    conn.setDoOutput(true);
    OutputStream os = conn.getOutputStream();
    InputStream is = ESMetricsAccessorTest.class.getResourceAsStream("bulk-metrics-data.txt");
    IOUtils.copy(is, os);
    IOUtils.closeQuietly(is);
    IOUtils.closeQuietly(os);
    if (conn.getResponseCode() > 299) {
        IOUtils.copy(conn.getInputStream(), System.err);
        throw new IOException("Bulk load of data failed with: " + conn.getResponseMessage());
    }

    client.execute(new Refresh.Builder().addIndex("apiman_metrics").refresh(true).build());
}

From source file:net.nym.library.http.UploadImagesRequest.java

/**
 * ???//from  ww w .  ja  va2 s . c  o m
 *
 * @param url
 *            Service net address
 * @param params
 *            text content
 * @param files
 *            pictures
 * @return String result of Service response
 * @throws java.io.IOException
 */
public static String postFile(String url, Map<String, Object> params, Map<String, File> files)
        throws IOException {
    String result = "";
    String BOUNDARY = UUID.randomUUID().toString();
    String PREFIX = "--", LINEND = "\r\n";
    String MULTIPART_FROM_DATA = "multipart/form-data";
    String CHARSET = "UTF-8";

    StringBuilder sb = new StringBuilder("?");
    for (Map.Entry<String, Object> entry : params.entrySet()) {
        //                sb.append(PREFIX);
        //                sb.append(BOUNDARY);
        //                sb.append(LINEND);
        //                sb.append("Content-Disposition: form-data; name=\""
        //                        + entry.getKey() + "\"" + LINEND);
        //                sb.append("Content-Type: text/plain; charset=" + CHARSET
        //                        + LINEND);
        //                sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
        //                sb.append(LINEND);
        //                sb.append(entry.getValue());
        //                sb.append(LINEND);
        //                String key = entry.getKey();
        //                sb.append("&");
        //                sb.append(key).append("=").append(params.get(key));
        //                Log.i("%s=%s",key,params.get(key).toString());
        sb.append(entry.getKey()).append("=").append(NetUtil.URLEncode(entry.getValue().toString()))
                .append("&");
    }
    sb.deleteCharAt(sb.length() - 1);
    URL uri = new URL(url + sb.toString());
    HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
    conn.setConnectTimeout(50000);
    conn.setDoInput(true);// ?
    conn.setDoOutput(true);// ?
    conn.setUseCaches(false); // ??
    conn.setRequestMethod("POST");
    conn.setRequestProperty("connection", "keep-alive");
    conn.setRequestProperty("Charsert", "UTF-8");
    conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);
    // ?
    //            StringBuilder sb = new StringBuilder();
    //            for (Map.Entry<String, Object> entry : params.entrySet()) {
    ////                sb.append(PREFIX);
    ////                sb.append(BOUNDARY);
    ////                sb.append(LINEND);
    ////                sb.append("Content-Disposition: form-data; name=\""
    ////                        + entry.getKey() + "\"" + LINEND);
    ////                sb.append("Content-Type: text/plain; charset=" + CHARSET
    ////                        + LINEND);
    ////                sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
    ////                sb.append(LINEND);
    ////                sb.append(entry.getValue());
    ////                sb.append(LINEND);
    //                String key = entry.getKey();
    //                sb.append("&");
    //                sb.append(key).append("=").append(params.get(key));
    //                Log.i("%s=%s",key,params.get(key).toString());
    //            }

    DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
    //            outStream.write(sb.toString().getBytes());
    // ?
    if (files != null) {
        for (Map.Entry<String, File> file : files.entrySet()) {
            StringBuilder sbFile = new StringBuilder();
            sbFile.append(PREFIX);
            sbFile.append(BOUNDARY);
            sbFile.append(LINEND);
            /**
             * ?? name???key ?key ??
             * filename?????? :abc.png
             */
            sbFile.append("Content-Disposition: form-data; name=\"" + file.getKey() + "\"; filename=\""
                    + file.getValue().getName() + "\"" + LINEND);
            sbFile.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINEND);
            sbFile.append(LINEND);
            Log.i(sbFile.toString());
            outStream.write(sbFile.toString().getBytes());

            InputStream is = new FileInputStream(file.getValue());
            byte[] buffer = new byte[1024];
            int len = 0;
            while ((len = is.read(buffer)) != -1) {
                outStream.write(buffer, 0, len);
            }
            is.close();
            outStream.write(LINEND.getBytes());
        }
        // ?
        byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
        outStream.write(end_data);
    }

    outStream.flush();
    // ??
    int res = conn.getResponseCode();
    InputStream in = conn.getInputStream();
    StringBuilder sbResult = new StringBuilder();
    if (res == 200) {
        int ch;
        while ((ch = in.read()) != -1) {
            sbResult.append((char) ch);
        }
    }
    result = sbResult.toString();
    outStream.close();
    conn.disconnect();
    return result;
}

From source file:circleplus.app.http.AbstractHttpApi.java

private static HttpURLConnection getHttpURLConnection(URL url, int requestMethod, boolean acceptJson)
        throws IOException {
    if (D)/*  w  w  w  .ja v  a2  s. com*/
        Log.d(TAG, "execute method: " + requestMethod + " url: " + url.toString() + " accept JSON ?= "
                + acceptJson);

    String method;
    boolean isPost;
    switch (requestMethod) {
    case REQUEST_METHOD_GET:
        method = "GET";
        isPost = false;
        break;
    case REQUEST_METHOD_POST:
        method = "POST";
        isPost = true;
        break;
    default:
        method = "GET";
        isPost = false;
        break;
    }

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setReadTimeout(TIMEOUT);
    conn.setConnectTimeout(TIMEOUT);
    conn.setRequestProperty("Content-Type", JSON_UTF8_CONTENT_TYPE);
    if (isPost && acceptJson) {
        conn.setRequestProperty("Accept", JSON_CONTENT_TYPE);
    }
    conn.setRequestMethod(method);
    /* setDoOutput(true) equals setRequestMethod("POST") */
    conn.setDoOutput(isPost);
    conn.setChunkedStreamingMode(0);
    // Starts the query
    conn.connect();

    return conn;
}

From source file:com.mnt.base.util.HttpUtil.java

public static String processPostRequest2Text(String url, Map<String, Object> parameters,
        Map<String, String> headerValue) {

    HttpURLConnection connection = null;

    try {//from   w  ww.  jav  a2 s  .com
        connection = (HttpURLConnection) new URL(url).openConnection();
    } catch (IOException e) {
        log.error("Error while process http get request.", e);
    }

    if (connection != null) {
        try {
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
        } catch (ProtocolException e) {
            log.error("should not happen to get error while set the request method as GET.", e);
        }

        if (!CommonUtil.isEmpty(headerValue)) {
            for (String key : headerValue.keySet()) {
                connection.setRequestProperty(key, headerValue.get(key));
            }
        }

        // need to specify the content type for post request
        connection.setRequestProperty("Content-Type", "application/json");

        setTimeout(connection);

        String resultStr = null;

        try {
            connection.connect();

            if (parameters != null) {
                String jsonParams = null;

                try {
                    jsonParams = JSONTool.convertObjectToJson(parameters);
                } catch (Exception e) {
                    log.error("error while process parameters to json string.", e);
                }

                if (jsonParams != null) {
                    connection.getOutputStream().write(jsonParams.getBytes());
                    connection.getOutputStream().flush();
                }
            }

            resultStr = readData(connection.getInputStream());
        } catch (IOException e) {
            log.error("fail to connect to url: " + url, e);
        } finally {
            connection.disconnect();
        }

        return resultStr;
    }

    return null;
}

From source file:fr.zcraft.zlib.tools.mojang.UUIDFetcher.java

/**
 * Opens a POST connection./*from   ww  w .  ja v  a 2  s .c o m*/
 *
 * @param url The URL to connect to.
 *
 * @return A POST connection to this URL.
 * @throws IOException If an exception occurred while contacting the server.
 */
static private HttpURLConnection getPOSTConnection(String url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setUseCaches(false);
    connection.setDoInput(true);
    connection.setDoOutput(true);

    return connection;
}

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

public static String multipartPost(HttpURLConnection conn, List<PostParameter> params) throws IOException {
    OutputStream os;/*from  www.  j ava  2  s .  com*/
    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;
}

From source file:Main.java

@TargetApi(Build.VERSION_CODES.KITKAT)
public static String net(String strUrl, Map<String, Object> params, String method) throws Exception {
    HttpURLConnection conn = null;
    BufferedReader reader = null;
    String rs = null;//from w w w.  ja  v  a2  s .c om
    try {
        StringBuffer sb = new StringBuffer();
        if (method == null || method.equals("GET")) {
            strUrl = strUrl + "?" + urlencode(params);
        }
        URL url = new URL(strUrl);
        conn = (HttpURLConnection) url.openConnection();
        if (method == null || method.equals("GET")) {
            conn.setRequestMethod("GET");
        } else {
            conn.setRequestMethod("POST");
            conn.setDoOutput(true);
        }
        conn.setRequestProperty("User-agent", userAgent);
        conn.setUseCaches(false);
        conn.setConnectTimeout(DEF_CONN_TIMEOUT);
        conn.setReadTimeout(DEF_READ_TIMEOUT);
        conn.setInstanceFollowRedirects(false);
        conn.connect();
        if (params != null && method.equals("POST")) {
            try (DataOutputStream out = new DataOutputStream(conn.getOutputStream())) {
                out.writeBytes(urlencode(params));
            }
        }
        InputStream is = conn.getInputStream();
        reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
        String strRead = null;
        while ((strRead = reader.readLine()) != null) {
            sb.append(strRead);
        }
        rs = sb.toString();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (reader != null) {
            reader.close();
        }
        if (conn != null) {
            conn.disconnect();
        }
    }
    return rs;
}