Java HttpEntity类代码示例

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
public void process(final HttpRequest request, final HttpContext context)
        throws HttpException, IOException {
    Args.notNull(request, "HTTP request");

    if (!request.containsHeader(HTTP.EXPECT_DIRECTIVE)) {
        if (request instanceof HttpEntityEnclosingRequest) {
            final ProtocolVersion ver = request.getRequestLine().getProtocolVersion();
            final HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity();
            // Do not send the expect header if request body is known to be empty
            if (entity != null
                    && entity.getContentLength() != 0 && !ver.lessEquals(HttpVersion.HTTP_1_0)) {
                final boolean active = request.getParams().getBooleanParameter(
                        CoreProtocolPNames.USE_EXPECT_CONTINUE, this.activeByDefault);
                if (active) {
                    request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
                }
            }
        }
    }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
public void process(final HttpRequest request, final HttpContext context)
        throws HttpException, IOException {
    Args.notNull(request, "HTTP request");

    if (!request.containsHeader(HTTP.EXPECT_DIRECTIVE)) {
        if (request instanceof HttpEntityEnclosingRequest) {
            final ProtocolVersion ver = request.getRequestLine().getProtocolVersion();
            final HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity();
            // Do not send the expect header if request body is known to be empty
            if (entity != null
                    && entity.getContentLength() != 0 && !ver.lessEquals(HttpVersion.HTTP_1_0)) {
                final HttpClientContext clientContext = HttpClientContext.adapt(context);
                final RequestConfig config = clientContext.getRequestConfig();
                if (config.isExpectContinueEnabled()) {
                    request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
                }
            }
        }
    }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Returns a list of {@link NameValuePair NameValuePairs} as parsed from an {@link HttpEntity}. The encoding is
 * taken from the entity's Content-Encoding header.
 * <p>
 * This is typically used while parsing an HTTP POST.
 *
 * @param entity
 *            The entity to parse
 * @return a list of {@link NameValuePair} as built from the URI's query portion.
 * @throws IOException
 *             If there was an exception getting the entity's data.
 */
public static List <NameValuePair> parse(
        final HttpEntity entity) throws IOException {
    final ContentType contentType = ContentType.get(entity);
    if (contentType != null && contentType.getMimeType().equalsIgnoreCase(CONTENT_TYPE)) {
        final String content = EntityUtils.toString(entity, Consts.ASCII);
        if (content != null && content.length() > 0) {
            Charset charset = contentType.getCharset();
            if (charset == null) {
                charset = HTTP.DEF_CONTENT_CHARSET;
            }
            return parse(content, charset, QP_SEPS);
        }
    }
    return Collections.emptyList();
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Read the contents of an entity and return it as a byte array.
 *
 * @param entity the entity to read from=
 * @return byte array containing the entity content. May be null if
 *   {@link HttpEntity#getContent()} is null.
 * @throws IOException if an error occurs reading the input stream
 * @throws IllegalArgumentException if entity is null or if content length > Integer.MAX_VALUE
 */
public static byte[] toByteArray(final HttpEntity entity) throws IOException {
    Args.notNull(entity, "Entity");
    final InputStream instream = entity.getContent();
    if (instream == null) {
        return null;
    }
    try {
        Args.check(entity.getContentLength() <= Integer.MAX_VALUE,
                "HTTP entity too large to be buffered in memory");
        int i = (int)entity.getContentLength();
        if (i < 0) {
            i = 4096;
        }
        final ByteArrayBuffer buffer = new ByteArrayBuffer(i);
        final byte[] tmp = new byte[4096];
        int l;
        while((l = instream.read(tmp)) != -1) {
            buffer.append(tmp, 0, l);
        }
        return buffer.toByteArray();
    } finally {
        instream.close();
    }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Obtains character set of the entity, if known.
 *
 * @param entity must not be null
 * @return the character set, or null if not found
 * @throws ParseException if header elements cannot be parsed
 * @throws IllegalArgumentException if entity is null
 *
 * @deprecated (4.1.3) use {@link ContentType#getOrDefault(HttpEntity)}
 */
@Deprecated
public static String getContentCharSet(final HttpEntity entity) throws ParseException {
    Args.notNull(entity, "Entity");
    String charset = null;
    if (entity.getContentType() != null) {
        final HeaderElement values[] = entity.getContentType().getElements();
        if (values.length > 0) {
            final NameValuePair param = values[0].getParameterByName("charset");
            if (param != null) {
                charset = param.getValue();
            }
        }
    }
    return charset;
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * If I was able to use a {@link CacheEntity} to response to the {@link ch.boye.httpclientandroidlib.HttpRequest} then
 * generate an {@link HttpResponse} based on the cache entry.
 * @param entry
 *            {@link CacheEntity} to transform into an {@link HttpResponse}
 * @return {@link HttpResponse} that was constructed
 */
CloseableHttpResponse generateResponse(final HttpCacheEntry entry) {

    final Date now = new Date();
    final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, entry
            .getStatusCode(), entry.getReasonPhrase());

    response.setHeaders(entry.getAllHeaders());

    if (entry.getResource() != null) {
        final HttpEntity entity = new CacheEntity(entry);
        addMissingContentLengthHeader(response, entity);
        response.setEntity(entity);
    }

    final long age = this.validityStrategy.getCurrentAgeSecs(entry, now);
    if (age > 0) {
        if (age >= Integer.MAX_VALUE) {
            response.setHeader(HeaderConstants.AGE, "2147483648");
        } else {
            response.setHeader(HeaderConstants.AGE, "" + ((int) age));
        }
    }

    return Proxies.enhanceResponse(response);
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
private void doConsume() throws IOException {
    ensureNotConsumed();
    consumed = true;

    limit = new InputLimit(maxResponseSizeBytes);

    final HttpEntity entity = response.getEntity();
    if (entity == null) {
        return;
    }
    final String uri = request.getRequestLine().getUri();
    instream = entity.getContent();
    try {
        resource = resourceFactory.generate(uri, instream, limit);
    } finally {
        if (!limit.isReached()) {
            instream.close();
        }
    }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
CloseableHttpResponse getReconstructedResponse() throws IOException {
    ensureConsumed();
    final HttpResponse reconstructed = new BasicHttpResponse(response.getStatusLine());
    reconstructed.setHeaders(response.getAllHeaders());

    final CombinedEntity combinedEntity = new CombinedEntity(resource, instream);
    final HttpEntity entity = response.getEntity();
    if (entity != null) {
        combinedEntity.setContentType(entity.getContentType());
        combinedEntity.setContentEncoding(entity.getContentEncoding());
        combinedEntity.setChunked(entity.isChunked());
    }
    reconstructed.setEntity(combinedEntity);
    return (CloseableHttpResponse) Proxy.newProxyInstance(
            ResponseProxyHandler.class.getClassLoader(),
            new Class<?>[] { CloseableHttpResponse.class },
            new ResponseProxyHandler(reconstructed) {

                @Override
                public void close() throws IOException {
                    response.close();
                }

            });
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Return the body as a <b>non-null</b> <code>ExtendedJSONObject</code>.
 *
 * @return A non-null <code>ExtendedJSONObject</code>.
 *
 * @throws IllegalStateException
 * @throws IOException
 * @throws NonObjectJSONException
 */
public ExtendedJSONObject jsonObjectBody() throws IllegalStateException, IOException, NonObjectJSONException {
  if (body != null) {
    // Do it from the cached String.
    return new ExtendedJSONObject(body);
  }

  HttpEntity entity = this.response.getEntity();
  if (entity == null) {
    throw new IOException("no entity");
  }

  InputStream content = entity.getContent();
  try {
    Reader in = new BufferedReader(new InputStreamReader(content, "UTF-8"));
    return new ExtendedJSONObject(in);
  } finally {
    content.close();
  }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
public JSONArray jsonArrayBody() throws NonArrayJSONException, IOException {
  final JSONParser parser = new JSONParser();
  try {
    if (body != null) {
      // Do it from the cached String.
      return (JSONArray) parser.parse(body);
    }

    final HttpEntity entity = this.response.getEntity();
    if (entity == null) {
      throw new IOException("no entity");
    }

    final InputStream content = entity.getContent();
    final Reader in = new BufferedReader(new InputStreamReader(content, "UTF-8"));
    try {
      return (JSONArray) parser.parse(in);
    } finally {
      in.close();
    }
  } catch (ClassCastException | ParseException e) {
    NonArrayJSONException exception = new NonArrayJSONException("value must be a json array");
    exception.initCause(e);
    throw exception;
  }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Get the payload verification hash for the given request, if possible.
 * <p>
 * Returns null if the request does not enclose an entity (is not an HTTP
 * PATCH, POST, or PUT). Throws if the payload verification hash cannot be
 * computed.
 *
 * @param request
 *          to compute hash for.
 * @return verification hash, or null if the request does not enclose an entity.
 * @throws IllegalArgumentException if the request does not enclose a valid non-null entity.
 * @throws UnsupportedEncodingException
 * @throws NoSuchAlgorithmException
 * @throws IOException
 */
protected static String getPayloadHashString(HttpRequestBase request)
    throws UnsupportedEncodingException, NoSuchAlgorithmException, IOException, IllegalArgumentException {
  final boolean shouldComputePayloadHash = request instanceof HttpEntityEnclosingRequest;
  if (!shouldComputePayloadHash) {
    Logger.debug(LOG_TAG, "Not computing payload verification hash for non-enclosing request.");
    return null;
  }
  if (!(request instanceof HttpEntityEnclosingRequest)) {
    throw new IllegalArgumentException("Cannot compute payload verification hash for enclosing request without an entity");
  }
  final HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
  if (entity == null) {
    throw new IllegalArgumentException("Cannot compute payload verification hash for enclosing request with a null entity");
  }
  return Base64.encodeBase64String(getPayloadHash(entity));
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Generate the SHA-256 hash of a normalized Hawk payload generated from an
 * HTTP entity.
 * <p>
 * <b>Warning:</b> the entity <b>must</b> be repeatable.  If it is not, this
 * code throws an <code>IllegalArgumentException</code>.
 * <p>
 * This is under-specified; the code here was reverse engineered from the code
 * at
 * <a href="https://github.com/hueniverse/hawk/blob/871cc597973110900467bd3dfb84a3c892f678fb/lib/crypto.js#L81">https://github.com/hueniverse/hawk/blob/871cc597973110900467bd3dfb84a3c892f678fb/lib/crypto.js#L81</a>.
 * @param entity to normalize and hash.
 * @return hash.
 * @throws IllegalArgumentException if entity is not repeatable.
 */
protected static byte[] getPayloadHash(HttpEntity entity) throws UnsupportedEncodingException, IOException, NoSuchAlgorithmException {
  if (!entity.isRepeatable()) {
    throw new IllegalArgumentException("entity must be repeatable");
  }
  final MessageDigest digest = MessageDigest.getInstance("SHA-256");
  digest.update(("hawk." + HAWK_HEADER_VERSION + ".payload\n").getBytes("UTF-8"));
  digest.update(getBaseContentType(entity.getContentType()).getBytes("UTF-8"));
  digest.update("\n".getBytes("UTF-8"));
  InputStream stream = entity.getContent();
  try {
    int numRead;
    byte[] buffer = new byte[4096];
    while (-1 != (numRead = stream.read(buffer))) {
      if (numRead > 0) {
        digest.update(buffer, 0, numRead);
      }
    }
    digest.update("\n".getBytes("UTF-8")); // Trailing newline is specified by Hawk.
    return digest.digest();
  } finally {
    stream.close();
  }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
private JSONObject executeRequest(HttpUriRequest request) throws TeslaApiException {
    try {
        final HttpResponse httpResponse = httpClient.execute(request);
        Log.d(Config.TAG, "Status: " + httpResponse.getStatusLine());

        final int status = httpResponse.getStatusLine().getStatusCode();
        if (HttpStatus.isSuccessful(status)) {
            final HttpEntity entity = httpResponse.getEntity();
            final String responseString = EntityUtils.toString(entity, "UTF-8");
            Log.d(Config.TAG, "Response: " + responseString);
            return new JSONObject(responseString);
        } else {
            throw TeslaApiException.fromCode(status);
        }
    } catch (IOException | JSONException e) {
        throw new TeslaApiException(e);
    }
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
public Object decodeEntity(HttpEntity httpentity) throws JSONException {
    JSONObject jsonobject = null;
    String jsonString;
    if (httpentity == null) {
        return null;
    }
    try {
        jsonString = EntityUtils.toString(httpentity).trim();
    } catch (Exception e) {
        Log.e("JsonObjectEntityDecoder", "decodeEntity", e);
        return null;
    }
    if (!jsonString.isEmpty()) {
        jsonobject = new JSONObject(jsonString);
    }
    return jsonobject;
}
 

import ch.boye.httpclientandroidlib.HttpEntity; //导入依赖的package包/类
/**
 * Download the Favicon from the given URL and pass it to the decoder function.
 *
 * @param targetFaviconURL URL of the favicon to download.
 * @return A LoadFaviconResult containing the bitmap(s) extracted from the downloaded file, or
 *         null if no or corrupt data ware received.
 * @throws IOException If attempts to fully read the stream result in such an exception, such as
 *                     in the event of a transient connection failure.
 * @throws URISyntaxException If the underlying call to tryDownload retries and raises such an
 *                            exception trying a fallback URL.
 */
private LoadFaviconResult downloadAndDecodeImage(URI targetFaviconURL) throws IOException, URISyntaxException {
    // Try the URL we were given.
    HttpResponse response = tryDownload(targetFaviconURL);
    if (response == null) {
        return null;
    }

    HttpEntity entity = response.getEntity();
    if (entity == null) {
        return null;
    }

    // Decode the image from the fetched response.
    try {
        return decodeImageFromResponse(entity);
    } finally {
        // Close the stream and free related resources.
        entity.consumeContent();
    }
}