Apache tika 错误地检测 csv 的 mime 类型

Question

我使用 excel 创建了.csv文件，并使用 apache tika 编写了以下代码：

public static boolean checkThatMimeTypeIsCsv(InputStream inputStream) throws IOException {
    BufferedInputStream bis = new BufferedInputStream(inputStream);
    AutoDetectParser parser = new AutoDetectParser();
    Detector detector = parser.getDetector();
    Metadata md = new Metadata();
    MediaType mediaType = detector.detect(bis, md);
    return "text/csv".equals(mediaType.toString());
}

public static void main(String[] args) throws IOException {
    System.out.println(checkThatMimeTypeIsCsv(new FileInputStream("Data.csv")));
}

但它返回false'.

是蒂卡太糟糕还是我错过了什么？

Answer 1

尝试这个...

public static String checkThatMimeTypeIsCsv(String fileName ) throws Exception {
    File sourceFile = new File(fileName );
    DefaultDetector file_detector = new DefaultDetector();
    TikaInputStream file_stream = TikaInputStream.get(sourceFile);
    Metadata metadata = new Metadata();
    metadata.set(Metadata.RESOURCE_NAME_KEY, sourceFile.getName());
    MediaType mediaType = file_detector.detect(file_stream, metadata);              
    String file_type = mediaType.toString();
    System.out.println(file_type);
    return file_type;
}