方法1:
import java.util.Locale; private static String getSuffix(File file) { if (file == null || !file.exists() || file.isDirectory()) { return null; } String fileName = file.getName(); if (fileName.equals("") || fileName.endsWith(".")) { return null; } int index = fileName.lastIndexOf("."); if (index != -1) { return fileName.substring(index + 1).toLowerCase(Locale.US); } else { return null; } } public static String getMimeType(File file){ String suffix = getSuffix(file); if (suffix == null) { return "file/*"; } String type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(suffix); if (type != null || !type.isEmpty()) { return type; } return "file/*"; }
方法2:
public static String getMimeType(String filePath) { MediaMetadataRetriever mmr = new MediaMetadataRetriever(); String mime = "text/plain"; if (filePath != null) { try { mmr.setDataSource(filePath); mime = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_MIMETYPE); } catch (IllegalStateException e) { return mime; } catch (IllegalArgumentException e) { return mime; } catch (RuntimeException e) { return mime; } } return mime; }
本文转自mfrbuaa博客园博客,原文链接:http://www.cnblogs.com/mfrbuaa/p/5089525.html,如需转载请自行联系原作者