Base64 encoding and decoding the binary stream of the file java

Binary stream decoding base64 encoding of the file 1.java

When selecting a general way is to save the file url deposit into the database. Today encounter a stream of binary file transfer docking base64 encoding, simply record it.

 

It depends on commons-io package and the package commons-codec.

 The coding method is as follows:

    public static String encodeFile(File file) throws IOException {
        byte[] readFileToByteArray = FileUtils.readFileToByteArray(file);
        return Base64.encodeBase64String(readFileToByteArray);
    }

    public static String encodeFile(String filePath) throws IOException {
        return encodeFile(new File(filePath));
    }

 

Decoding method is as follows: (FileUtils will automatically create a file)

    public static void decodeFile(String codes, File file) throws IOException {
        byte[] decodeBase64 = Base64.decodeBase64(codes);
        FileUtils.writeByteArrayToFile(file, decodeBase64);
    }

    public static void decodeFile(String codes, String filePath) throws IOException {
        decodeFile(codes, new File(filePath));
    }

 

Added: Sometimes the picture after base64 encoding deposit library can be displayed in the following way

<img src="data:image/jpeg;base64,${codes}"/>