Example usage for java.net HttpURLConnection getErrorStream

List of usage examples for java.net HttpURLConnection getErrorStream

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Introduction

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

Prototype

public InputStream getErrorStream()

Source Link

Document

Returns the error stream if the connection failed but the server sent useful data nonetheless.

Usage

From source file:net.daporkchop.porkselfbot.util.HTTPUtils.java

/**
 * Performs a POST request to the specified URL and returns the result.
 * <p />/*from   ww w  . j  ava2s .c om*/
 * The POST data will be encoded in UTF-8 as the specified contentType. The response will be parsed as UTF-8.
 * If the server returns an error but still provides a body, the body will be returned as normal.
 * If the server returns an error without any body, a relevant {@link java.io.IOException} will be thrown.
 *
 * @param url URL to submit the POST request to
 * @param post POST data in the correct format to be submitted
 * @param contentType Content type of the POST data
 * @return Raw text response from the server
 * @throws IOException The request was not successful
 */
public static String performPostRequest(final URL url, final String post, final String contentType)
        throws IOException {
    Validate.notNull(url);
    Validate.notNull(post);
    Validate.notNull(contentType);
    final HttpURLConnection connection = createUrlConnection(url);
    final byte[] postAsBytes = post.getBytes(Charsets.UTF_8);

    connection.setRequestProperty("Content-Type", contentType + "; charset=utf-8");
    connection.setRequestProperty("Content-Length", "" + postAsBytes.length);
    connection.setDoOutput(true);

    OutputStream outputStream = null;
    try {
        outputStream = connection.getOutputStream();
        IOUtils.write(postAsBytes, outputStream);
    } finally {
        IOUtils.closeQuietly(outputStream);
    }

    InputStream inputStream = null;
    try {
        inputStream = connection.getInputStream();
        final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
        return result;
    } catch (final IOException e) {
        IOUtils.closeQuietly(inputStream);
        inputStream = connection.getErrorStream();

        if (inputStream != null) {
            final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
            return result;
        } else {
            throw e;
        }
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

From source file:org.kymjs.kjframe.http.httpclient.HttpRequestBuilder.java

/**
 * Open the error {@link InputStream} of an Http response. This method
 * supports GZIP and DEFLATE responses./*from  w w  w  .j  a v  a 2 s.  co m*/
 */
private static InputStream getErrorStream(HttpURLConnection conn) throws IOException {
    final List<String> contentEncodingValues = conn.getHeaderFields().get("Content-Encoding");
    if (contentEncodingValues != null) {
        for (final String contentEncoding : contentEncodingValues) {
            if (contentEncoding != null) {
                if (contentEncoding.contains("gzip")) {
                    return new GZIPInputStream(conn.getErrorStream());
                }
                if (contentEncoding.contains("deflate")) {
                    return new InflaterInputStream(conn.getErrorStream(), new Inflater(true));
                }
            }
        }
    }
    return conn.getErrorStream();
}

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

/**
 * ??http/*from  ww  w  .  j  ava 2s .c o  m*/
 * 
 * @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:com.cloudbees.mtslaves.client.RemoteReference.java

/**
 * Wrap the exception with one which includes the error message from the server.
 * @param con the connection throwing the error
 * @param e the original exception/*  ww  w  .j av  a2  s  . c  o m*/
 * @return the wrapped exception
 * @throws IOException is unexpected
 */
protected IOException wrappedException(HttpURLConnection con, IOException e) throws IOException {
    InputStream es = con.getErrorStream();
    String payload = es != null ? IOUtils.toString(es) : "(no data)";
    return new IOException(e.getMessage() + " Error response: " + payload, e);
}

From source file:net.daporkchop.porkselfbot.util.HTTPUtils.java

/**
 * Performs a POST request to the specified URL and returns the result.
 * <p />/*from   ww w.  j  a v  a2s . c  o m*/
 * The POST data will be encoded in UTF-8 as the specified contentType. The response will be parsed as UTF-8.
 * If the server returns an error but still provides a body, the body will be returned as normal.
 * If the server returns an error without any body, a relevant {@link java.io.IOException} will be thrown.
 *
 * @param url URL to submit the POST request to
 * @param post POST data in the correct format to be submitted
 * @param contentType Content type of the POST data
 * @return Raw text response from the server
 * @throws IOException The request was not successful
 */
public static String performPostRequestWithAuth(final URL url, final String post, final String contentType,
        final String auth) throws IOException {
    Validate.notNull(url);
    Validate.notNull(post);
    Validate.notNull(contentType);
    final HttpURLConnection connection = createUrlConnection(url);
    final byte[] postAsBytes = post.getBytes(Charsets.UTF_8);

    connection.setRequestProperty("Authorization", auth);
    connection.setRequestProperty("Content-Type", contentType + "; charset=utf-8");
    connection.setRequestProperty("Content-Length", "" + postAsBytes.length);
    connection.setDoOutput(true);

    OutputStream outputStream = null;
    try {
        outputStream = connection.getOutputStream();
        IOUtils.write(postAsBytes, outputStream);
    } finally {
        IOUtils.closeQuietly(outputStream);
    }

    InputStream inputStream = null;
    try {
        inputStream = connection.getInputStream();
        final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
        return result;
    } catch (final IOException e) {
        IOUtils.closeQuietly(inputStream);
        inputStream = connection.getErrorStream();

        if (inputStream != null) {
            final String result = IOUtils.toString(inputStream, Charsets.UTF_8);
            return result;
        } else {
            throw e;
        }
    } finally {
        IOUtils.closeQuietly(inputStream);
    }
}

From source file:com.cloudbees.mtslaves.client.RemoteReference.java

protected void drain(HttpURLConnection con) throws IOException {
    if (con.getResponseCode() >= 500) {
        String error = IOUtils.toString(con.getErrorStream());
        con.getErrorStream().close();/*from www.j a  va2 s . c  om*/
        throw new IOException("Error received:" + con.getResponseCode() + "\n" + error);
    } else {
        IOUtils.copy(con.getInputStream(), new NullOutputStream());
        con.getInputStream().close();
    }
}

From source file:com.appdynamics.monitors.ehcache.EhcacheRESTWrapper.java

private void printError(HttpURLConnection connection, String cacheServerUrl) {
    if (connection != null) {
        try {/*from  www . j a v  a2  s . co  m*/
            InputStream errorStream = connection.getErrorStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(errorStream));
            String temp;
            logger.error("Error while invoking the url " + cacheServerUrl);
            StringBuilder sb = new StringBuilder();
            while ((temp = br.readLine()) != null) {
                sb.append(temp).append("\n");
            }
            logger.error("The server Response is " + sb.toString());
        } catch (Exception e) {
            logger.error("Error while printing response ", e);
        }
    }
}

From source file:com.cisco.gerrit.plugins.slack.client.WebhookClient.java

private InputStream getResponseStream(HttpURLConnection connection) {
    try {/*from w  w  w . j  a  v a2s . c  o  m*/
        return connection.getInputStream();
    } catch (IOException e) {
        return connection.getErrorStream();
    }
}

From source file:com.gliffy.restunit.http.JavaHttp.java

private byte[] readBody(HttpURLConnection connection) throws IOException {
    InputStream is = connection.getInputStream();
    is = connection.getInputStream();//from w ww . j av  a  2s .co  m
    if (is == null)
        is = connection.getErrorStream();
    if (is == null)
        return null;

    ByteArrayOutputStream os = new ByteArrayOutputStream();
    int ch = is.read();
    while (ch != -1) {
        os.write(ch);
        ch = is.read();
    }
    return os.toByteArray();
}

From source file:es.tid.cep.esperanza.Utils.java

public static boolean DoHTTPPost(String urlStr, String content) {
    try {/*w w  w .  ja  va  2  s.  c o  m*/
        URL url = new URL(urlStr);
        HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setDoOutput(true);
        urlConn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
        OutputStreamWriter printout = new OutputStreamWriter(urlConn.getOutputStream(),
                Charset.forName("UTF-8"));
        printout.write(content);
        printout.flush();
        printout.close();

        int code = urlConn.getResponseCode();
        String message = urlConn.getResponseMessage();
        logger.debug("action http response " + code + " " + message);
        if (code / 100 == 2) {
            InputStream input = urlConn.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(input));
            for (String line; (line = reader.readLine()) != null;) {
                logger.debug("action response body: " + line);
            }
            input.close();
            return true;

        } else {
            logger.error("action response is not OK: " + code + " " + message);
            InputStream error = urlConn.getErrorStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(error));
            for (String line; (line = reader.readLine()) != null;) {
                logger.error("action error response body: " + line);
            }
            error.close();
            return false;
        }
    } catch (MalformedURLException me) {
        logger.error("exception MalformedURLException: " + me.getMessage());
        return false;
    } catch (IOException ioe) {
        logger.error("exception IOException: " + ioe.getMessage());
        return false;
    }
}