如何解码/获取文件编码(Power BI 桌面文件)

I tried to get encoding of file and it is returning windows 1254. but decoding is not happening.

File f = new File("example.txt");

    String[] charsetsToBeTested = {"UTF-8", "windows-1254", "ISO-8859-7"};

    CharsetDetector cd = new CharsetDetector();
    Charset charset = cd.detectCharset(f, charsetsToBeTested);

    if (charset != null) {
        try {
            InputStreamReader reader = new InputStreamReader(new FileInputStream(f), charset);
            int c = 0;
            while ((c = reader.read()) != -1) {
                System.out.print((char)c);
            }
            reader.close();
        } catch (FileNotFoundException fnfe) {
            fnfe.printStackTrace();
        }catch(IOException ioe){
            ioe.printStackTrace();
        }

    }else{
        System.out.println("Unrecognized charset.");
    }

文件解压也不行

public void unZipIt(String zipFile, String outputFolder)
{
    byte buffer[] = new byte[1024];
    try
    {
        File folder = new File(outputFolder);
        if(!folder.exists())
        {
            folder.mkdir();
        }
        ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));
        System.out.println(zis);

        System.out.println(zis.getNextEntry());
        for(ZipEntry ze = zis.getNextEntry(); ze != null; ze = zis.getNextEntry())
        {
            String fileName = ze.getName();
            System.out.println(ze);
            File newFile = new File((new StringBuilder(String.valueOf(outputFolder))).append(File.separator).append(fileName).toString());
            System.out.println((new StringBuilder("file unzip : ")).append(newFile.getAbsoluteFile()).toString());
            (new File(newFile.getParent())).mkdirs();
            FileOutputStream fos = new FileOutputStream(newFile);
            int len;
            while((len = zis.read(buffer)) > 0) 
            {
                fos.write(buffer, 0, len);
            }
            fos.close();
        }

        zis.closeEntry();
        zis.close();
        System.out.println("Done");
    }
    catch(IOException ex)
    {
        ex.printStackTrace();
    }
}

推荐答案

您可以使用 System.IO.Packaging 库来提取 Power BI 数据混搭.它使用 OPC 封装标准，请参阅 这里.