private String encodeFileToBase64Binary(File file) throws IOException { byte[] bytes = loadFile(file); byte[] encoded = Base64.getEncoder().encode(bytes); String encodedString = new String(encoded); return encodedString; } private byte[] loadFile(File file) throws IOException { byte[] bytes; try (InputStream is = new FileInputStream(file)) { long length = file.length(); if (length > Integer.MAX_VALUE) { throw new IOException("File to large " + file.getName()); } bytes = new byte[(int) length]; int offset = 0; int numRead = 0; while (offset < bytes.length && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) { offset += numRead; } if (offset < bytes.length) { throw new IOException("Could not completely read file " + file.getName()); } } return bytes; }
Java – Ler um arquivo e codifica-lo para Base64 – Converter File para Base64 (Encode file to Base64)
Bem isso que precisava! Valeu!