java.net.HttpURLConnection.getContentType()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中java.net.HttpURLConnection.getContentType()方法的一些代码示例，展示了HttpURLConnection.getContentType()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。HttpURLConnection.getContentType()方法的具体详情如下：
包路径：java.net.HttpURLConnection
类名称：HttpURLConnection
方法名：getContentType

HttpURLConnection.getContentType介绍

暂无

代码示例

代码示例来源：origin: square/okhttp

@Override public String getContentType() {
 return delegate.getContentType();
}

代码示例来源：origin: prestodb/presto

@Override public String getContentType() {
 return delegate.getContentType();
}

代码示例来源：origin: alibaba/nacos

private static String getCharset(HttpURLConnection conn) {
  String contentType = conn.getContentType();
  if (StringUtils.isEmpty(contentType)) {
    return "UTF-8";
  }
  String[] values = contentType.split(";");
  if (values.length == 0) {
    return "UTF-8";
  }
  String charset = "UTF-8";
  for (String value : values) {
    value = value.trim();
    if (value.toLowerCase().startsWith("charset=")) {
      charset = value.substring("charset=".length());
    }
  }
  return charset;
}

代码示例来源：origin: looly/hutool

/**
 * 从Http连接的头信息中获得字符集<br>
 * 从ContentType中获取
 * 
 * @param conn HTTP连接对象
 * @return 字符集
 */
public static String getCharset(HttpURLConnection conn) {
  if (conn == null) {
    return null;
  }
  return ReUtil.get(CHARSET_PATTERN, conn.getContentType(), 1);
}

代码示例来源：origin: looly/hutool

/**
 * 从Http连接的头信息中获得字符集<br>
 * 从ContentType中获取
 * 
 * @param conn HTTP连接对象
 * @return 字符集
 */
public static String getCharset(HttpURLConnection conn) {
  if (conn == null) {
    return null;
  }
  return ReUtil.get(CHARSET_PATTERN, conn.getContentType(), 1);
}

代码示例来源：origin: alibaba/nacos

private static String getCharset(HttpURLConnection conn) {
  String contentType = conn.getContentType();
  if (StringUtils.isEmpty(contentType)) {
    return "UTF-8";
  }
  String[] values = contentType.split(";");
  if (values.length == 0) {
    return "UTF-8";
  }
  String charset = "UTF-8";
  for (String value : values) {
    value = value.trim();
    if (value.toLowerCase().startsWith("charset=")) {
      charset = value.substring("charset=".length());
    }
  }
  return charset;
}

代码示例来源：origin: ltsopensource/light-task-scheduler

protected static String getResponseAsString(HttpURLConnection conn) throws IOException {
  String charset = getResponseCharset(conn.getContentType());
  InputStream es = conn.getErrorStream();
  if (es == null) {
    return getStreamAsString(conn.getInputStream(), charset);
  } else {
    return getStreamAsString(es, charset);
  }
}

代码示例来源：origin: ltsopensource/light-task-scheduler

protected static String getResponseAsString(HttpURLConnection conn) throws IOException {
  String charset = getResponseCharset(conn.getContentType());
  InputStream es = conn.getErrorStream();
  if (es == null) {
    return getStreamAsString(conn.getInputStream(), charset);
  } else {
    return getStreamAsString(es, charset);
  }
}

代码示例来源：origin: airbnb/lottie-android

FileExtension extension;
LottieResult<LottieComposition> result;
switch (connection.getContentType()) {
 case "application/zip":
  L.debug("Handling zip response.");

代码示例来源：origin: CarGuo/GSYVideoPlayer

@Override
public void open(long offset) throws ProxyCacheException {
  try {
    connection = openConnection(offset, -1);
    String mime = connection.getContentType();
    inputStream = new BufferedInputStream(connection.getInputStream(), DEFAULT_BUFFER_SIZE);
    long length = readSourceAvailableBytes(connection, offset, connection.getResponseCode());
    this.sourceInfo = new SourceInfo(sourceInfo.url, length, mime);
    this.sourceInfoStorage.put(sourceInfo.url, sourceInfo);
  } catch (IOException e) {
    throw new ProxyCacheException("Error opening connection for " + sourceInfo.url + " with offset " + offset, e);
  }
}

代码示例来源：origin: wildfly/wildfly

private HttpURLConnection sendGetRequest(String resourceUrl, int expectedResponseCode, String expectedContentType) throws AcmeException {
  try {
    final URL directoryUrl = new URL(resourceUrl);
    HttpURLConnection connection = (HttpURLConnection) directoryUrl.openConnection();
    connection.setRequestMethod(GET);
    connection.setRequestProperty(ACCEPT_LANGUAGE, Locale.getDefault().toLanguageTag());
    connection.setRequestProperty(USER_AGENT, USER_AGENT_STRING);
    connection.connect();
    int responseCode = connection.getResponseCode();
    if (responseCode != expectedResponseCode) {
      handleAcmeErrorResponse(connection, responseCode);
    }
    String contentType = connection.getContentType();
    if (! checkContentType(connection, expectedContentType)) {
      throw acme.unexpectedContentTypeFromAcmeServer(contentType);
    }
    return connection;
  } catch (Exception e) {
    if (e instanceof AcmeException) {
      throw (AcmeException) e;
    } else {
      throw new AcmeException(e);
    }
  }
}

代码示例来源：origin: mcxiaoke/android-volley

/**
 * Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}.
 * @param connection
 * @return an HttpEntity populated with data from <code>connection</code>.
 */
private static HttpEntity entityFromConnection(HttpURLConnection connection) {
  BasicHttpEntity entity = new BasicHttpEntity();
  InputStream inputStream;
  try {
    inputStream = connection.getInputStream();
  } catch (IOException ioe) {
    inputStream = connection.getErrorStream();
  }
  entity.setContent(inputStream);
  entity.setContentLength(connection.getContentLength());
  entity.setContentEncoding(connection.getContentEncoding());
  entity.setContentType(connection.getContentType());
  return entity;
}

代码示例来源：origin: org.jsoup/jsoup

private void setupFromConnection(HttpURLConnection conn, Connection.Response previousResponse) throws IOException {
  method = Method.valueOf(conn.getRequestMethod());
  url = conn.getURL();
  statusCode = conn.getResponseCode();
  statusMessage = conn.getResponseMessage();
  contentType = conn.getContentType();
  Map<String, List<String>> resHeaders = createHeaderMap(conn);
  processResponseHeaders(resHeaders);
  // if from a redirect, map previous response cookies into this response
  if (previousResponse != null) {
    for (Map.Entry<String, String> prevCookie : previousResponse.cookies().entrySet()) {
      if (!hasCookie(prevCookie.getKey()))
        cookie(prevCookie.getKey(), prevCookie.getValue());
    }
  }
}

代码示例来源：origin: chentao0707/SimplifyReader

/**
 * Initializes an {@link org.apache.http.HttpEntity} from the given {@link java.net.HttpURLConnection}.
 * @param connection
 * @return an HttpEntity populated with data from <code>connection</code>.
 */
private static HttpEntity entityFromConnection(HttpURLConnection connection) {
  BasicHttpEntity entity = new BasicHttpEntity();
  InputStream inputStream;
  try {
    inputStream = connection.getInputStream();
  } catch (IOException ioe) {
    inputStream = connection.getErrorStream();
  }
  entity.setContent(inputStream);
  entity.setContentLength(connection.getContentLength());
  entity.setContentEncoding(connection.getContentEncoding());
  entity.setContentType(connection.getContentType());
  return entity;
}

代码示例来源：origin: oracle/helidon

@Override
protected ConfigParser.Content content() throws ConfigException {
  try {
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(GET_METHOD);
    final String mediaType = mediaType(connection.getContentType());
    final Optional<Instant> timestamp;
    if (connection.getLastModified() != 0) {
      timestamp = Optional.of(Instant.ofEpochMilli(connection.getLastModified()));
    } else {
      timestamp = Optional.of(Instant.now());
      LOGGER.fine("Missing GET '" + url + "' response header 'Last-Modified'. Used current time '"
                + timestamp + "' as a content timestamp.");
    }
    Reader reader = new InputStreamReader(connection.getInputStream(),
                       ConfigUtils.getContentCharset(connection.getContentEncoding()));
    return ConfigParser.Content.create(reader, mediaType, timestamp);
  } catch (ConfigException ex) {
    throw ex;
  } catch (Exception ex) {
    throw new ConfigException("Configuration at url '" + url + "' GET is not accessible.", ex);
  }
}

代码示例来源：origin: jiangqqlmj/FastDev4Android

/**
 * Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}.
 * @param connection
 * @return an HttpEntity populated with data from <code>connection</code>.
 */
private static HttpEntity entityFromConnection(HttpURLConnection connection) {
  BasicHttpEntity entity = new BasicHttpEntity();
  InputStream inputStream;
  try {
    inputStream = connection.getInputStream();
  } catch (IOException ioe) {
    inputStream = connection.getErrorStream();
  }
  entity.setContent(inputStream);
  entity.setContentLength(connection.getContentLength());
  entity.setContentEncoding(connection.getContentEncoding());
  entity.setContentType(connection.getContentType());
  return entity;
}

代码示例来源：origin: wildfly/wildfly

private static boolean checkContentType(HttpURLConnection connection, String expectedMediaType) throws AcmeException {
  String contentType = connection.getContentType();
  if (contentType == null) {
    return false;
  }
  CodePointIterator cpi = CodePointIterator.ofString(contentType);
  CodePointIterator di = cpi.delimitedBy(CONTENT_TYPE_DELIMS);
  String mediaType = di.drainToString().trim();
  skipDelims(di, cpi, CONTENT_TYPE_DELIMS);
  while (di.hasNext()) {
    String parameter = di.drainToString().trim();
    skipDelims(di, cpi, CONTENT_TYPE_DELIMS);
    if (parameter.equalsIgnoreCase(CHARSET)) {
      String value = di.drainToString().trim();
      if (! value.equalsIgnoreCase(UTF_8)) {
        return false;
      }
    }
  }
  return mediaType.equalsIgnoreCase(expectedMediaType);
}

代码示例来源：origin: CarGuo/GSYVideoPlayer

private void fetchContentInfo() throws ProxyCacheException {
  HttpURLConnection urlConnection = null;
  InputStream inputStream = null;
  try {
    urlConnection = openConnection(0, 10000);
    long length = getContentLength(urlConnection);
    String mime = urlConnection.getContentType();
    inputStream = urlConnection.getInputStream();
    this.sourceInfo = new SourceInfo(sourceInfo.url, length, mime);
    this.sourceInfoStorage.put(sourceInfo.url, sourceInfo);
  } catch (IOException e) {
    HttpProxyCacheDebuger.printfError("Error fetching info from " + sourceInfo.url, e);
  } finally {
    ProxyCacheUtils.close(inputStream);
    if (urlConnection != null) {
      urlConnection.disconnect();
    }
  }
}

代码示例来源：origin: apache/flink

@Test
public void testResponseHeaders() throws Exception {
  // check headers for successful json response
  URL taskManagersUrl = new URL("http://localhost:" + getRestPort() + "/taskmanagers");
  HttpURLConnection taskManagerConnection = (HttpURLConnection) taskManagersUrl.openConnection();
  taskManagerConnection.setConnectTimeout(100000);
  taskManagerConnection.connect();
  if (taskManagerConnection.getResponseCode() >= 400) {
    // error!
    InputStream is = taskManagerConnection.getErrorStream();
    String errorMessage = IOUtils.toString(is, ConfigConstants.DEFAULT_CHARSET);
    throw new RuntimeException(errorMessage);
  }
  // we don't set the content-encoding header
  Assert.assertNull(taskManagerConnection.getContentEncoding());
  Assert.assertEquals("application/json; charset=UTF-8", taskManagerConnection.getContentType());
  // check headers in case of an error
  URL notFoundJobUrl = new URL("http://localhost:" + getRestPort() + "/jobs/dontexist");
  HttpURLConnection notFoundJobConnection = (HttpURLConnection) notFoundJobUrl.openConnection();
  notFoundJobConnection.setConnectTimeout(100000);
  notFoundJobConnection.connect();
  if (notFoundJobConnection.getResponseCode() >= 400) {
    // we don't set the content-encoding header
    Assert.assertNull(notFoundJobConnection.getContentEncoding());
    Assert.assertEquals("application/json; charset=UTF-8", notFoundJobConnection.getContentType());
  } else {
    throw new RuntimeException("Request for non-existing job did not return an error.");
  }
}

代码示例来源：origin: hs-web/hsweb-framework

suffix = MIMEType.getSuffix( connection.getContentType() );

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