java.net.URLConnection.getFileNameMap()方法的使用及代码示例

x33g5p2x  于2022-01-31 转载在 其他  
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本文整理了Java中java.net.URLConnection.getFileNameMap()方法的一些代码示例，展示了URLConnection.getFileNameMap()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。URLConnection.getFileNameMap()方法的具体详情如下：
包路径：java.net.URLConnection
类名称：URLConnection
方法名：getFileNameMap

URLConnection.getFileNameMap介绍

[英]Returns the table which is used by all URLConnection instances to determine the MIME-type according to a file extension.
[中]返回所有URLConnection实例用于根据文件扩展名确定MIME类型的表。

代码示例

代码示例来源：origin: jeasonlzy/okhttp-OkGo

  1. /** 根据文件名获取MIME类型 */
  2. public static MediaType guessMimeType(String fileName) {
  3.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  4.   fileName = fileName.replace("#", "");   //解决文件名中含有#号异常的问题
  5.   String contentType = fileNameMap.getContentTypeFor(fileName);
  6.   if (contentType == null) {
  7.     return HttpParams.MEDIA_TYPE_STREAM;
  8.   }
  9.   return MediaType.parse(contentType);
  10. }

代码示例来源：origin: looly/hutool

  1. /**
  2.  * 根据文件扩展名获得MimeType
  3.  * 
  4.  * @param filePath 文件路径或文件名
  5.  * @return MimeType
  6.  * @since 4.1.15
  7.  */
  8. public static String getMimeType(String filePath) {
  9.   return URLConnection.getFileNameMap().getContentTypeFor(filePath);
  10. }

代码示例来源：origin: looly/hutool

  1. /**
  2.  * 根据文件扩展名获得MimeType
  3.  * 
  4.  * @param filePath 文件路径或文件名
  5.  * @return MimeType
  6.  * @since 4.1.15
  7.  */
  8. public static String getMimeType(String filePath) {
  9.   return URLConnection.getFileNameMap().getContentTypeFor(filePath);
  10. }

代码示例来源：origin: amitshekhariitbhu/Fast-Android-Networking

  1. public static String getMimeType(String path) {
  2.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  3.   String contentTypeFor = fileNameMap.getContentTypeFor(path);
  4.   if (contentTypeFor == null) {
  5.     contentTypeFor = "application/octet-stream";
  6.   }
  7.   return contentTypeFor;
  8. }

代码示例来源：origin: biezhi/wechat-api

  1. /**
  2.  * 获取文件 MimeType
  3.  *
  4.  * @param fileUrl
  5.  * @return
  6.  */
  7. public static String getMimeType(String fileUrl) {
  8.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  9.   String      type        = fileNameMap.getContentTypeFor(fileUrl);
  10.   return type;
  11. }

代码示例来源：origin: robovm/robovm

  1. /**
  2.  * Determines the MIME-type of the given resource {@code url} by resolving
  3.  * the filename extension with the internal FileNameMap. Any fragment
  4.  * identifier is removed before processing.
  5.  *
  6.  * @param url
  7.  *            the URL with the filename to get the MIME type.
  8.  * @return the guessed content type or {@code null} if the type could not be
  9.  *         determined.
  10.  */
  11. public static String guessContentTypeFromName(String url) {
  12.   return getFileNameMap().getContentTypeFor(url);
  13. }

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. public File getCroppedImage(File originalFile, int x1, int y1, int width,
  2.     int height) throws Exception {
  3.   
  4.   if(!this.cropeable) {
  5.     return originalFile;
  6.   }
  7.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  8.   String contentType = fileNameMap.getContentTypeFor(originalFile.getName());
  9.   
  10.   String extension = contentType.substring(contentType.indexOf("/"),contentType.length());
  11.   
  12.   BufferedImage image = ImageIO.read(originalFile);
  13.   BufferedImage out = image.getSubimage(x1, y1, width, height);
  14.   File tempFile = File.createTempFile("temp", "." + extension );
  15.   tempFile.deleteOnExit();
  16.   ImageIO.write(out, extension, tempFile);
  17.   return tempFile;
  18. }

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. try {
  2.  FileNameMap fileNameMap = URLConnection.getFileNameMap();

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. FileNameMap fileNameMap = URLConnection.getFileNameMap();

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. FileNameMap fileNameMap = URLConnection.getFileNameMap();
  2. StringBuilder nodePath = new StringBuilder();
  3. nodePath.append(product.getMerchantStore().getCode());

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. @Override
  2. public List<OutputContentFile> getFiles(final String merchantStoreCode,
  3.   final FileContentType staticContentType) throws ServiceException {
  4.  if (cacheManager.getTreeCache() == null) {
  5.   throw new ServiceException(
  6.     "CmsStaticContentFileManagerInfinispan has a null cacheManager.getTreeCache()");
  7.  }
  8.  List<OutputContentFile> images = new ArrayList<OutputContentFile>();
  9.  try {
  10.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  11.   String nodePath = this.getNodePath(merchantStoreCode, staticContentType);
  12.   final Node<String, Object> merchantNode = this.getNode(nodePath);
  13.   for (String key : merchantNode.getKeys()) {
  14.    byte[] imageBytes = (byte[]) merchantNode.get(key);
  15.    OutputContentFile contentImage = new OutputContentFile();
  16.    InputStream input = new ByteArrayInputStream(imageBytes);
  17.    ByteArrayOutputStream output = new ByteArrayOutputStream();
  18.    IOUtils.copy(input, output);
  19.    String contentType = fileNameMap.getContentTypeFor(key);
  20.    contentImage.setFile(output);
  21.    contentImage.setMimeType(contentType);
  22.    contentImage.setFileName(key);
  23.    images.add(contentImage);
  24.   }
  25.  } catch (final Exception e) {
  26.   LOGGER.error("Error while fetching file for {} merchant ", merchantStoreCode);
  27.   throw new ServiceException(e);
  28.  }
  29.  return images;
  30. }

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. FileNameMap fileNameMap = URLConnection.getFileNameMap();

代码示例来源：origin: shopizer-ecommerce/shopizer

  1. outputStaticContentData.setFile(output);
  2. outputStaticContentData
  3.   .setMimeType(URLConnection.getFileNameMap().getContentTypeFor(contentFileName));
  4. outputStaticContentData.setFileName(contentFileName);
  5. outputStaticContentData.setFileContentType(fileContentType);

代码示例来源：origin: 0opslab/opslabJutil

  1. /**
  2.  * 获取文件的Mime类型
  3.  *
  4.  * @param file 需要处理的文件
  5.  * @return 返回文件的mime类型
  6.  * @throws java.io.IOException
  7.  */
  8. public final static String mimeType(String file) throws java.io.IOException {
  9.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  10.   return fileNameMap.getContentTypeFor(file);
  11. }

代码示例来源：origin: stackoverflow.com

  1. FileNameMap fileNameMap = URLConnection.getFileNameMap();
  2. String mimeType = fileNameMap.getContentTypeFor("alert.gif");

代码示例来源：origin: stackoverflow.com

  1. File request = new File(uri);
  2. mbuffer = new FileInputStream(request);
  3. FileNameMap fileNameMap = URLConnection.getFileNameMap();
  4. String mimeType = fileNameMap.getContentTypeFor(uri);

代码示例来源：origin: cn-ljb/rxjava_for_android

  1. /**
  2.  * 初始化Body类型请求参数
  3.  * init Body type params
  4.  */
  5. private RequestBody initRequestBody(Map<String, Object> params) {
  6.   MultipartBuilder bodyBuilder = new MultipartBuilder().type(MultipartBuilder.FORM);
  7.   Set<Map.Entry<String, Object>> entries = params.entrySet();
  8.   for (Map.Entry<String, Object> entry : entries) {
  9.     String key = entry.getKey();
  10.     Object value = entry.getValue();
  11.     if (value instanceof File) {
  12.       File file = (File) value;
  13.       try {
  14.         FileNameMap fileNameMap = URLConnection.getFileNameMap();
  15.         String mimeType = fileNameMap.getContentTypeFor(file.getAbsolutePath());
  16.         XgoLog.w("mimeType::" + mimeType);
  17.         bodyBuilder.addFormDataPart(key, file.getName(), RequestBody.create(MediaType.parse(mimeType), file));
  18.       } catch (Exception e) {
  19.         e.printStackTrace();
  20.         XgoLog.e("mimeType is Error !");
  21.       }
  22.     } else {
  23.       XgoLog.w(key + "::" + value);
  24.       bodyBuilder.addFormDataPart(key, value.toString());
  25.     }
  26.   }
  27.   return bodyBuilder.build();
  28. }

代码示例来源：origin: apache/wicket

  1. /**
  2.  * Returns the mime type for given filename.
  3.  * 
  4.  * @param fileName
  5.  * @return mime type
  6.  */
  7. public String getMimeType(final String fileName)
  8. {
  9.   return URLConnection.getFileNameMap().getContentTypeFor(fileName);
  10. }

代码示例来源：origin: huxq17/SwipeCardsView

  1. private String getContentType(String path) {
  2.   FileNameMap fileNameMap = URLConnection.getFileNameMap();
  3.   String contentType = fileNameMap.getContentTypeFor(path);
  4.   if (contentType == null) {
  5.     contentType = "application/octet-stream";
  6.   }
  7.   return contentType;
  8. }

代码示例来源：origin: Odoo-mobile/framework

  1. private void requestIntent(Uri uri) {
  2.   Intent intent = new Intent(Intent.ACTION_VIEW);
  3.   FileNameMap mime = URLConnection.getFileNameMap();
  4.   String mimeType = mime.getContentTypeFor(uri.getPath());
  5.   intent.setDataAndType(uri, mimeType);
  6.   try {
  7.     mActivity.startActivity(intent);
  8.   } catch (ActivityNotFoundException e) {
  9.     Toast.makeText(mActivity, OResource.string(mActivity, R.string.toast_no_activity_found_to_handle_file),
  10.         Toast.LENGTH_LONG).show();
  11.   }
  12. }

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