Example usage for java.net HttpURLConnection getOutputStream

Introduction

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

Prototype

public OutputStream getOutputStream() throws IOException 

Source Link

Document

Returns an output stream that writes to this connection.

Usage

From source file:org.devnexus.aerogear.HttpRestProvider.java

private void addBodyRequest(HttpURLConnection urlConnection, byte[] data) throws IOException {

    urlConnection.setDoOutput(true);/*from   ww  w.jav a  2s. c o  m*/

    if (data != null) {
        OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());
        out.write(data);
        out.flush();
    }

}

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From source file:com.neoteric.starter.metrics.report.elastic.ElasticsearchReporter.java

private void closeConnection(HttpURLConnection connection) throws IOException {
    connection.getOutputStream().close();
    connection.disconnect();/*from  ww w . java2 s  . c o m*/

    // we have to call this, otherwise out HTTP data does not get send, even though close()/disconnect was called
    // Ceterum censeo HttpUrlConnection esse delendam
    if (connection.getResponseCode() != HttpStatus.OK.value()) {
        LOGGER.error("Reporting returned code {} {}: {}", connection.getResponseCode(),
                connection.getResponseMessage());
    }
}

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From source file:si.mazi.rescu.HttpTemplate.java

/**
 * Requests JSON via an HTTP POST/*from w  ww  .  ja  va2s  . c o  m*/
 *
 *
 * @param urlString   A string representation of a URL
 * @param returnType  The required return type
 * @param requestBody The contents of the request body
 * @param httpHeaders Any custom header values (application/json is provided automatically)
 * @param method      Http method (usually GET or POST)
 * @param contentType the mime type to be set as the value of the Content-Type header
 * @param exceptionType
 * @return String - the fetched JSON String
 */
public <T> T executeRequest(String urlString, Class<T> returnType, String requestBody,
        Map<String, String> httpHeaders, HttpMethod method, String contentType,
        Class<? extends RuntimeException> exceptionType) {

    log.debug("Executing {} request at {}", method, urlString);
    log.trace("Request body = {}", requestBody);
    log.trace("Request headers = {}", httpHeaders);

    AssertUtil.notNull(urlString, "urlString cannot be null");
    AssertUtil.notNull(httpHeaders, "httpHeaders should not be null");

    httpHeaders.put("Accept", "application/json");
    if (contentType != null) {
        httpHeaders.put("Content-Type", contentType);
    }

    try {
        int contentLength = requestBody == null ? 0 : requestBody.length();
        HttpURLConnection connection = configureURLConnection(method, urlString, httpHeaders, contentLength);

        if (contentLength > 0) {
            // Write the request body
            connection.getOutputStream().write(requestBody.getBytes(CHARSET_UTF_8));
        }

        String responseEncoding = getResponseEncoding(connection);

        int httpStatus = connection.getResponseCode();
        log.debug("Request http status = {}", httpStatus);

        if (httpStatus != 200) {
            String httpBody = readInputStreamAsEncodedString(connection.getErrorStream(), responseEncoding);
            log.trace("Http call returned {}; response body:\n{}", httpStatus, httpBody);
            if (exceptionType != null) {
                throw JSONUtils.getJsonObject(httpBody, exceptionType, objectMapper);
            } else {
                throw new HttpStatusException("HTTP status code not 200", httpStatus, httpBody);
            }
        }

        InputStream inputStream = connection.getInputStream();

        // Get the data
        String responseString = readInputStreamAsEncodedString(inputStream, responseEncoding);
        log.trace("Response body: {}", responseString);

        return JSONUtils.getJsonObject(responseString, returnType, objectMapper);

    } catch (MalformedURLException e) {
        throw new HttpException("Problem " + method + "ing -- malformed URL: " + urlString, e);
    } catch (IOException e) {
        throw new HttpException("Problem " + method + "ing (IO)", e);
    }
}

---

From source file:com.testmax.util.HttpUtil.java

public int postFormdata(String myurl, String param, String xml) {

    HttpURLConnection httpConn = null;
    URL url;//  w w w  .  j  a va 2 s  .c  om
    int rest = -1;
    try {
        url = new URL(myurl);

        httpConn = (HttpURLConnection) url.openConnection();
        httpConn.setRequestProperty("content-type", "text/xml; charset=utf-8");
        httpConn.setDoOutput(true);

        OutputStream os = httpConn.getOutputStream();
        BufferedWriter osw = new BufferedWriter(new OutputStreamWriter(os));

        osw.write(xml);
        osw.flush();
        osw.close();
        rest = httpConn.getResponseCode();

    } catch (MalformedURLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return rest;

}

---

From source file:com.huixueyun.tifenwang.api.net.HttpEngine.java

/**
 * http urlconnection?//from   ww w.j  av a 2  s. c o  m
 *
 * @param paramsMap ??
 * @param model     ?
 * @param paramUrl  ??
 * @param type      ?
 * @param <T>
 * @return ApiResponse?
 * @throws IOException
 */
public <T> T postConnectionHandle(Map<String, String> paramsMap, String model, String paramUrl, String type)
        throws IOException {
    String data = joinParams(paramsMap, type);
    // ?
    L.e(data);
    HttpURLConnection connection = getConnection(paramUrl);
    connection.setRequestProperty("Content-Length", String.valueOf(data.getBytes().length));
    connection.connect();
    OutputStream os = connection.getOutputStream();
    os.write(data.getBytes());
    os.flush();
    if (connection.getResponseCode() == 200) {
        // ???
        InputStream is = connection.getInputStream();
        // ?
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        // ?
        int len = 0;
        // 
        byte buffer[] = new byte[1024];
        // ??
        while ((len = is.read(buffer)) != -1) {
            // ??os
            baos.write(buffer, 0, len);
        }
        // ?
        is.close();
        baos.close();
        connection.disconnect();
        // 
        final String result = new String(baos.toByteArray());

        ApiResponse apiResponse;
        try {
            apiResponse = ApiModel.getInstance().getApiResponse(model, result);
        } catch (Exception e) {
            apiResponse = null;
        }

        return (T) apiResponse;
    } else {
        connection.disconnect();
        return null;
    }
}

---

From source file:costumetrade.common.sms.SMSActor.java

/**
 * HttpURLConnectionpost???// w  w w. j  av  a 2s  . co m
 */
private String sendPostRequestByForm(String path, String params) {
    HttpURLConnection conn = null;
    InputStream inStream = null;
    try {
        URL url = new URL(path);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");// ???
        conn.setDoOutput(true);// ??
        conn.setDoInput(true);
        conn.getOutputStream().write(params.getBytes());// ?
        inStream = conn.getInputStream();
        return IOUtils.toString(inStream, StandardCharsets.UTF_8);
    } catch (Exception e) {
        throw new RuntimeException("??", e);
    } finally {
        IOUtils.closeQuietly(inStream);
        if (conn != null) {
            conn.disconnect();
        }
    }
}

---

From source file:gr.uoc.nlp.opinion.analysis.suggestion.ElasticSearchIntegration.java

/**
 *
 * @param query// w w w  . j  a  v a  2  s  . c o m
 * @return
 */
public double executeQuery(String query) {

    double score = 0.0;

    try {
        String url = elasticSearchQueryURI;

        //open connection
        URL obj = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) obj.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");

        //write data to socket
        try (OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream())) {
            out.write(query);
            out.close();
        }

        String json = "";
        String line = "";
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));

        //get response
        while ((line = in.readLine()) != null) {
            json = json + line + " ";
        }

        //            System.out.println(json);
        //transfor response to JSONObject
        JSONObject jsonObj = new JSONObject(json);
        try {
            //get max_score
            score = jsonObj.getJSONObject("hits").getDouble("max_score");
        } catch (JSONException ex) {
            score = 0.0;
        }

        in.close();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (JSONException ex) {
        Logger.getLogger(ElasticSearchIntegration.class.getName()).log(Level.SEVERE, null, ex);
    }

    return score;
}

---

From source file:com.threewks.analytics.client.AnalyticsClient.java

/**
 * Post JSON a URL. Ignore (but log) any errors.
 * //from  w w w  . j a va 2 s  .c om
 * @param url the URL to post the data to.
 * @param json the JSON data to post.
 */
void postJson(String url, String json) {
    PrintWriter writer = null;
    try {
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setConnectTimeout(5000);
        connection.setReadTimeout(5000);
        connection.setDoOutput(true);
        connection.setRequestProperty(API_KEY_HEADER, apiKey);
        connection.setRequestProperty(CONTENT_TYPE_HEADER, JSON_CONTENT_TYPE);
        writer = new PrintWriter(connection.getOutputStream(), true);
        writer.append(json);
        writer.close();

        int responseCode = connection.getResponseCode();
        if (responseCode != 200) {
            logger.warning(String.format(
                    "Analytics server returned HTTP response code: %s when posting data to url: %s",
                    responseCode, url));
        }
    } catch (Exception e) {
        logger.warning(String.format("Error sending data to url: %s, error: %s", url, e.getMessage()));
    } finally {
        IOUtils.closeQuietly(writer);
    }
}

---

From source file:ict.servlet.UploadToServer.java

public static int upLoad2Server(String sourceFileUri) {
    String upLoadServerUri = "http://vbacdu.ddns.net:8080/WBS/newjsp.jsp";
    // String [] string = sourceFileUri;
    String fileName = sourceFileUri;
    int serverResponseCode = 0;

    HttpURLConnection conn = null;
    DataOutputStream dos = null;/*ww  w  .j  a  v a2s.  c o m*/
    DataInputStream inStream = null;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1 * 1024 * 1024;
    String responseFromServer = "";

    File sourceFile = new File(sourceFileUri);
    if (!sourceFile.isFile()) {

        return 0;
    }
    try { // open a URL connection to the Servlet
        FileInputStream fileInputStream = new FileInputStream(sourceFile);
        URL url = new URL(upLoadServerUri);
        conn = (HttpURLConnection) url.openConnection(); // Open a HTTP  connection to  the URL
        conn.setDoInput(true); // Allow Inputs
        conn.setDoOutput(true); // Allow Outputs
        conn.setUseCaches(false); // Don't use a Cached Copy
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestProperty("ENCTYPE", "multipart/form-data");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
        conn.setRequestProperty("uploaded_file", fileName);
        dos = new DataOutputStream(conn.getOutputStream());

        dos.writeBytes(twoHyphens + boundary + lineEnd);
        dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + fileName + "\""
                + lineEnd);
        dos.writeBytes(lineEnd);

        bytesAvailable = fileInputStream.available(); // create a buffer of  maximum size

        bufferSize = Math.min(bytesAvailable, maxBufferSize);
        buffer = new byte[bufferSize];

        // read file and write it into form...
        bytesRead = fileInputStream.read(buffer, 0, bufferSize);

        while (bytesRead > 0) {
            dos.write(buffer, 0, bufferSize);
            bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
        }

        // send multipart form data necesssary after file data...
        dos.writeBytes(lineEnd);
        dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

        // Responses from the server (code and message)
        serverResponseCode = conn.getResponseCode();
        String serverResponseMessage = conn.getResponseMessage();

        m_log.info("Upload file to server" + "HTTP Response is : " + serverResponseMessage + ": "
                + serverResponseCode);
        // close streams
        m_log.info("Upload file to server" + fileName + " File is written");
        fileInputStream.close();
        dos.flush();
        dos.close();
    } catch (MalformedURLException ex) {
        //         ex.printStackTrace();
        m_log.error("Upload file to server" + "error: " + ex.getMessage(), ex);
    } catch (Exception e) {
        //      e.printStackTrace();
    }
    //this block will give the response of upload link
    /* try {
      BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
      String line;
      while ((line = rd.readLine()) != null) {
      m_log.info("Huzza" + "RES Message: " + line);
      }
      rd.close();
      } catch (IOException ioex) {
      m_log.error("Huzza" + "error: " + ioex.getMessage(), ioex);
      }*/
    return serverResponseCode; // like 200 (Ok)

}

---

From source file:com.base2.kagura.core.authentication.RestAuthentication.java

public InputStream httpPost(String suffix, HashMap<String, String> values) {
    try {//from  www  .j ava2  s .com
        URL obj = new URL(url + "/" + suffix);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        con.setRequestMethod("POST");

        String data = new ObjectMapper().writeValueAsString(values);

        con.setRequestProperty("Content-Type", "application/json");
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(data);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();
        if (responseCode != 200)
            throw new Exception("Got error code: " + responseCode);
        return con.getInputStream();
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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