Example usage for java.net HttpURLConnection getHeaderFields

Introduction

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

Prototype

public Map<String, List<String>> getHeaderFields() 

Source Link

Document

Returns an unmodifiable Map of the header fields.

Usage

From source file:org.myframe.http.HttpConnectStack.java

@Override
public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
        throws IOException {
    String url = request.getUrl();
    HashMap<String, String> map = new HashMap<String, String>();
    map.putAll(request.getHeaders());/*from   ww  w .  j ava 2 s.co  m*/
    map.putAll(additionalHeaders);

    if (mUrlRewriter != null) {
        String rewritten = mUrlRewriter.rewriteUrl(url);
        if (rewritten == null) {
            throw new IOException("URL blocked by rewriter: " + url);
        }
        url = rewritten;
    }
    URL parsedUrl = new URL(url);
    HttpURLConnection connection = openConnection(parsedUrl, request);
    for (String headerName : map.keySet()) {
        connection.addRequestProperty(headerName, map.get(headerName));
    }
    setConnectionParametersForRequest(connection, request);

    ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
    int responseCode = connection.getResponseCode();
    if (responseCode == -1) {
        throw new IOException("Could not retrieve response code from HttpUrlConnection.");
    }
    StatusLine responseStatus = new BasicStatusLine(protocolVersion, connection.getResponseCode(),
            connection.getResponseMessage());

    BasicHttpResponse response = new BasicHttpResponse(responseStatus);
    response.setEntity(entityFromConnection(connection));
    for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
        if (header.getKey() != null) {
            String value = "";
            for (String v : header.getValue()) {
                value += (v + "; ");
            }
            Header h = new BasicHeader(header.getKey(), value);
            response.addHeader(h);
        }
    }
    return response;
}

---

From source file:org.kymjs.kjframe.http.HttpConnectStack.java

@Override
public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
        throws IOException {
    String url = request.getUrl();
    HashMap<String, String> map = new HashMap<String, String>();
    //just marker by chenlin
    map.putAll(request.getHeaders());//from   ww  w  .  j a va 2s  .c o m
    map.putAll(additionalHeaders);

    if (mUrlRewriter != null) {
        String rewritten = mUrlRewriter.rewriteUrl(url);
        if (rewritten == null) {
            throw new IOException("URL blocked by rewriter: " + url);
        }
        url = rewritten;
    }
    URL parsedUrl = new URL(url);
    HttpURLConnection connection = openConnection(parsedUrl, request);
    for (String headerName : map.keySet()) {

        connection.addRequestProperty(headerName, map.get(headerName));
    }
    setConnectionParametersForRequest(connection, request);

    ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
    int responseCode = connection.getResponseCode();
    if (responseCode == -1) {
        throw new IOException("Could not retrieve response code from HttpUrlConnection.");
    }
    StatusLine responseStatus = new BasicStatusLine(protocolVersion, connection.getResponseCode(),
            connection.getResponseMessage());

    BasicHttpResponse response = new BasicHttpResponse(responseStatus);
    response.setEntity(entityFromConnection(connection));
    for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
        if (header.getKey() != null) {
            String value = "";
            for (String v : header.getValue()) {
                value += (v + "; ");
            }
            Header h = new BasicHeader(header.getKey(), value);
            response.addHeader(h);
        }
    }
    return response;
}

---

From source file:org.jboss.aerogear.android.pipe.http.HttpRestProvider.java

private HeaderAndBody getHeaderAndBody(HttpURLConnection urlConnection) throws IOException {

    int statusCode = urlConnection.getResponseCode();
    HeaderAndBody result;/*  w  w  w .java2s . co  m*/
    Map<String, List<String>> headers;
    byte[] responseData;

    switch (statusCode) {
    case HttpStatus.SC_OK:
    case HttpStatus.SC_CREATED:
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());

        responseData = readBytes(in);

        break;

    case HttpStatus.SC_NO_CONTENT:
        responseData = new byte[0];

        break;

    default:
        InputStream err = new BufferedInputStream(urlConnection.getErrorStream());

        byte[] errData = readBytes(err);
        Map<String, List<String>> errorListHeaders = urlConnection.getHeaderFields();
        Map<String, String> errorHeaders = new HashMap<String, String>();

        for (String header : errorListHeaders.keySet()) {

            String comma = "";
            StringBuilder errorHeaderBuilder = new StringBuilder();

            for (String errorHeader : errorListHeaders.get(header)) {
                errorHeaderBuilder.append(comma).append(errorHeader);
                comma = ",";
            }

            errorHeaders.put(header, errorHeaderBuilder.toString());

        }

        throw new HttpException(errData, statusCode, errorHeaders);

    }

    headers = urlConnection.getHeaderFields();
    result = new HeaderAndBody(responseData, new HashMap<String, Object>(headers.size()));

    for (Map.Entry<String, List<String>> header : headers.entrySet()) {
        result.setHeader(header.getKey(), TextUtils.join(",", header.getValue()));
    }

    return result;

}

---

From source file:org.apache.niolex.commons.net.HTTPUtil.java

/**
 * Do the HTTP request.//ww  w  . j  a  v  a 2s  .c o m
 *
 * @param strUrl the request URL
 * @param params the request parameters
 * @param paramCharset the charset used to send the request parameters
 * @param headers the request headers
 * @param connectTimeout the connection timeout
 * @param readTimeout the data read timeout
 * @param useGet whether do we use the HTTP GET method
 * @return the response pair; a is response header map, b is response body
 * @throws NetException
 */
public static final Pair<Map<String, List<String>>, byte[]> doHTTP(String strUrl, Map<String, String> params,
        String paramCharset, Map<String, String> headers, int connectTimeout, int readTimeout, boolean useGet)
        throws NetException {
    LOG.debug("Start HTTP {} request to [{}], C{}R{}.", useGet ? "GET" : "POST", strUrl, connectTimeout,
            readTimeout);
    InputStream in = null;
    try {
        // 1. For get, we pass parameters in URL; for post, we save it in reqBytes.
        byte[] reqBytes = null;
        if (!CollectionUtil.isEmpty(params)) {
            if (useGet) {
                strUrl = strUrl + '?' + prepareWwwFormUrlEncoded(params, paramCharset);
            } else {
                reqBytes = StringUtil.strToAsciiByte(prepareWwwFormUrlEncoded(params, paramCharset));
            }
        }
        URL url = new URL(strUrl); // We use Java URL to do the HTTP request.
        URLConnection ucon = url.openConnection();
        ucon.setConnectTimeout(connectTimeout);
        ucon.setReadTimeout(readTimeout);
        // 2. validate to Connection type.
        if (!(ucon instanceof HttpURLConnection)) {
            throw new NetException(NetException.ExCode.INVALID_URL_TYPE,
                    "The request is not in HTTP protocol.");
        }
        final HttpURLConnection httpCon = (HttpURLConnection) ucon;
        // 3. We add all the request headers.
        if (headers != null) {
            for (Map.Entry<String, String> entry : headers.entrySet()) {
                httpCon.addRequestProperty(entry.getKey(), entry.getValue());
            }
        }
        // 4. For get or no parameter, we do not output data; for post, we pass parameters in Body.
        if (reqBytes == null) {
            httpCon.setDoOutput(false);
        } else {
            httpCon.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            httpCon.setRequestProperty("Content-Length", Integer.toString(reqBytes.length));
            httpCon.setRequestMethod("POST");
            httpCon.setDoOutput(true);
        }
        httpCon.setDoInput(true);
        httpCon.connect();
        // 5. do output if needed.
        if (reqBytes != null) {
            StreamUtil.writeAndClose(httpCon.getOutputStream(), reqBytes);
        }
        // 6. Get the input stream.
        in = httpCon.getInputStream();
        final int contentLength = httpCon.getContentLength();
        validateHttpCode(strUrl, httpCon);
        byte[] ret = null;
        // 7. Read response byte array according to the strategy.
        if (contentLength > 0) {
            ret = commonDownload(contentLength, in);
        } else {
            ret = unusualDownload(strUrl, in, MAX_BODY_SIZE, true);
        }
        // 8. Parse the response headers.
        LOG.debug("Succeeded to execute HTTP request to [{}], response size {}.", strUrl, ret.length);
        return Pair.create(httpCon.getHeaderFields(), ret);
    } catch (NetException e) {
        LOG.info(e.getMessage());
        throw e;
    } catch (Exception e) {
        String msg = "Failed to execute HTTP request to [" + strUrl + "], msg=" + e.toString();
        LOG.warn(msg);
        throw new NetException(NetException.ExCode.IOEXCEPTION, msg, e);
    } finally {
        // Close the input stream.
        StreamUtil.closeStream(in);
    }
}

---

From source file:test.ShopThreadSrc.java

private boolean doPTShop() throws Exception {
    LogUtil.infoPrintf("?----------->");
    //loadCookie();
    boolean result = true;
    String postParams = addPTDynamicParams();
    HttpURLConnection loginConn = getHttpPostConn(this.ptshopurl);
    loginConn.setRequestProperty("Host", "danbao.5173.com");
    loginConn.setRequestProperty("Content-Length", Integer.toString(postParams.length()));
    LogUtil.debugPrintf("?HEADER===" + loginConn.getRequestProperties());
    DataOutputStream wr = new DataOutputStream(loginConn.getOutputStream());
    wr.writeBytes(postParams);/*from  w  w w .ja v a  2 s  .c  o  m*/
    wr.flush();
    wr.close();
    int responseCode = loginConn.getResponseCode();
    LogUtil.debugPrintf("\nSending 'POST' request to URL : " + this.ptshopurl);
    LogUtil.debugPrintf("Post parameters : " + postParams);
    LogUtil.debugPrintf("Response Code : " + responseCode);
    Map<String, List<String>> header = loginConn.getHeaderFields();
    LogUtil.debugPrintf("??HEADER===" + header);
    List<String> cookie = header.get("Set-Cookie");
    if (cookie == null || cookie.size() == 0) {
        result = false;
        LogUtil.infoPrintf("?----------->");
    } else {
        LogUtil.infoPrintf("??----------->");
        LogUtil.debugPrintf("cookie====" + cookie);
        setCookies(cookie);
    }
    LogUtil.infoPrintf("??----------->");
    //System.out.println(list.toHtml());
    return result;
}

---

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

private HeaderAndBody getHeaderAndBody(HttpURLConnection urlConnection) throws IOException {

    int statusCode = urlConnection.getResponseCode();
    HeaderAndBody result;/*from  w w w  .  j  a v  a2s.com*/
    Map<String, List<String>> headers;
    byte[] responseData;

    switch (statusCode) {
    case HttpStatus.SC_OK:
    case HttpStatus.SC_CREATED:
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());

        responseData = readBytes(in);

        break;

    case HttpStatus.SC_NO_CONTENT:
        responseData = new byte[0];

        break;

    default:
        InputStream err = new BufferedInputStream(urlConnection.getErrorStream());

        byte[] errData = readBytes(err);

        Map<String, String> errorHeaders = Maps.transformValues(urlConnection.getHeaderFields(),
                new Function<List<String>, String>() {
                    @Override
                    public String apply(List<String> input) {
                        return TextUtils.join(",", input);
                    }
                });

        throw new HttpException(errData, statusCode, errorHeaders);

    }

    headers = urlConnection.getHeaderFields();
    result = new HeaderAndBody(responseData, new HashMap<String, Object>(headers.size()));

    for (Map.Entry<String, List<String>> header : headers.entrySet()) {
        result.setHeader(header.getKey(), TextUtils.join(",", header.getValue()));
    }

    return result;

}

---

From source file:de.thingweb.discovery.TDRepository.java

/**
 * Adds a ThingDescription to Repository
 * //from w ww . j ava 2 s  .  c  o m
 * @param content JSON-LD
 * @return key of entry in repository
 * @throws Exception in case of error
 */
public String addTD(byte[] content) throws Exception {
    URL url = new URL("http://" + repository_uri + "/td");
    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
    httpCon.setDoOutput(true);
    httpCon.setRequestProperty("content-type", "application/ld+json");
    httpCon.setRequestMethod("POST");
    OutputStream out = httpCon.getOutputStream();
    out.write(content);
    out.close();

    InputStream is = httpCon.getInputStream();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    int b;
    while ((b = is.read()) != -1) {
        baos.write(b);
    }

    int responseCode = httpCon.getResponseCode();

    httpCon.disconnect();

    String key = ""; // new String(baos.toByteArray());

    if (responseCode != 201) {
        // error
        throw new RuntimeException("ResponseCodeError: " + responseCode);
    } else {
        Map<String, List<String>> hf = httpCon.getHeaderFields();
        List<String> los = hf.get("Location");
        if (los != null && los.size() > 0) {
            key = los.get(0);
        }
    }

    return key;
}

---

From source file:org.wso2.carbon.esb.mediator.test.iterate.IterateJsonPathTest.java

private static HttpResponse doPost(URL endpoint, String postBody, Map<String, String> headers)
        throws AutomationFrameworkException, IOException {
    HttpURLConnection urlConnection = null;
    try {/* w w w .j  av  a2  s. c  o  m*/
        urlConnection = (HttpURLConnection) endpoint.openConnection();
        try {
            urlConnection.setRequestMethod("POST");
        } catch (ProtocolException e) {
            throw new AutomationFrameworkException(
                    "Shouldn't happen: HttpURLConnection doesn't support POST?? " + e.getMessage(), e);
        }
        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        urlConnection.setUseCaches(false);
        urlConnection.setAllowUserInteraction(false);
        urlConnection.setReadTimeout(10000);
        for (Map.Entry<String, String> e : headers.entrySet()) {
            urlConnection.setRequestProperty(e.getKey(), e.getValue());
        }
        OutputStream out = urlConnection.getOutputStream();
        Writer writer = null;
        try {
            writer = new OutputStreamWriter(out, "UTF-8");
            writer.write(postBody);
        } catch (IOException e) {
            throw new AutomationFrameworkException("IOException while posting data " + e.getMessage(), e);
        } finally {
            if (writer != null) {
                writer.close();
            }
        }
        StringBuilder sb = new StringBuilder();
        BufferedReader rd = null;
        try {
            rd = new BufferedReader(
                    new InputStreamReader(urlConnection.getInputStream(), Charset.defaultCharset()));
            String line;
            while ((line = rd.readLine()) != null) {
                sb.append(line);
            }
        } finally {
            if (rd != null) {
                rd.close();
            }
        }
        Iterator<String> itr = urlConnection.getHeaderFields().keySet().iterator();
        Object responseHeaders = new HashMap();
        String key;
        while (itr.hasNext()) {
            key = itr.next();
            if (key != null) {
                ((Map) responseHeaders).put(key, urlConnection.getHeaderField(key));
            }
        }
        return new HttpResponse(sb.toString(), urlConnection.getResponseCode(), (Map) responseHeaders);
    } catch (IOException e) {
        StringBuilder sb = new StringBuilder();
        BufferedReader rd = null;
        rd = new BufferedReader(
                new InputStreamReader(urlConnection.getErrorStream(), Charset.defaultCharset()));
        String line;
        while ((line = rd.readLine()) != null) {
            sb.append(line);
        }
        rd.close();
        return new HttpResponse(sb.toString(), urlConnection.getResponseCode());
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

---

From source file:com.aylien.textapi.HttpSender.java

public String post(String url, Map<String, String> parameters, Map<String, String> headers)
        throws IOException, TextAPIException {
    try {/*from   w  w w  . j  a v a2 s.  co m*/
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        for (Map.Entry<String, String> header : headers.entrySet()) {
            connection.setRequestProperty(header.getKey(), header.getValue());
        }
        connection.setDoOutput(true);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("User-Agent", USER_AGENT);

        StringBuilder payload = new StringBuilder();
        for (Map.Entry<String, String> e : parameters.entrySet()) {
            if (payload.length() > 0) {
                payload.append('&');
            }
            payload.append(URLEncoder.encode(e.getKey(), "UTF-8")).append('=')
                    .append(URLEncoder.encode(e.getValue(), "UTF-8"));
        }

        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
        writer.write(payload.toString());
        writer.close();

        responseHeaders = connection.getHeaderFields();

        InputStream inputStream = connection.getResponseCode() == 200 ? connection.getInputStream()
                : connection.getErrorStream();

        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder response = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();

        if (connection.getResponseCode() >= 300) {
            extractTextAPIError(response.toString());
        }

        return response.toString();
    } catch (MalformedURLException e) {
        throw new IOException(e);
    }
}

---

From source file:org.pocketcampus.plugin.moodle.server.old.MoodleServiceImpl.java

public TequilaToken getTequilaTokenForMoodle() throws TException {
    System.out.println("getTequilaTokenForMoodle");
    try {//www .  ja v a2 s.com
        HttpURLConnection conn2 = (HttpURLConnection) new URL("http://moodle.epfl.ch/auth/tequila/index.php")
                .openConnection();
        conn2.setInstanceFollowRedirects(false);
        conn2.getInputStream();
        URL url = new URL(conn2.getHeaderField("Location"));
        MultiMap<String> params = new MultiMap<String>();
        UrlEncoded.decodeTo(url.getQuery(), params, "UTF-8");
        TequilaToken teqToken = new TequilaToken(params.getString("requestkey"));
        Cookie cookie = new Cookie();
        for (String header : conn2.getHeaderFields().get("Set-Cookie")) {
            cookie.addFromHeader(header);
        }
        teqToken.setLoginCookie(cookie.cookie());
        return teqToken;
    } catch (IOException e) {
        e.printStackTrace();
        throw new TException("Failed to getTequilaToken from upstream server");
    }
}

---

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