How to use

MD5Utils

in

com.lody.virtual.helper.utils

private static String bufferToHex(byte bytes[], int m, int n) {
  StringBuffer stringbuffer = new StringBuffer(2 * n);
  int k = m + n;
  for (int l = m; l < k; l++) {
    appendHexPair(bytes[l], stringbuffer);
  }
  return stringbuffer.toString();
}
private static void appendHexPair(byte bt, StringBuffer stringbuffer) {

private static String bufferToHex(byte bytes[]) {
  return bufferToHex(bytes, 0, bytes.length);
}
private static String bufferToHex(byte bytes[], int m, int n) {

public static boolean compareFiles(File one, File two) throws IOException {
  if (one.getAbsolutePath().equals(two.getAbsolutePath())) {
    // 是同一个文件
    return true;
  }
  String md5_1 = getFileMD5String(one);
  String md5_2 = getFileMD5String(two);
  return TextUtils.equals(md5_1, md5_2);
}

public static String getFileMD5String(InputStream in) throws IOException {
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = in.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  in.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}
private static String bufferToHex(byte bytes[]) {

public static boolean compareFiles(File one, File two) throws IOException {
  if (one.getAbsolutePath().equals(two.getAbsolutePath())) {
    // 是同一个文件
    return true;
  }
  String md5_1 = getFileMD5String(one);
  String md5_2 = getFileMD5String(two);
  return TextUtils.equals(md5_1, md5_2);
}

private static String bufferToHex(byte bytes[], int m, int n) {
  StringBuffer stringbuffer = new StringBuffer(2 * n);
  int k = m + n;
  for (int l = m; l < k; l++) {
    appendHexPair(bytes[l], stringbuffer);
  }
  return stringbuffer.toString();
}
private static void appendHexPair(byte bt, StringBuffer stringbuffer) {

public static String getFileMD5String(File file) throws IOException {
  InputStream fis;
  fis = new FileInputStream(file);
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = fis.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  fis.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}

public static boolean compareFiles(File one, File two) throws IOException {
  if (one.getAbsolutePath().equals(two.getAbsolutePath())) {
    // 是同一个文件
    return true;
  }
  String md5_1 = getFileMD5String(one);
  String md5_2 = getFileMD5String(two);
  return TextUtils.equals(md5_1, md5_2);
}

private static String bufferToHex(byte bytes[], int m, int n) {
  StringBuffer stringbuffer = new StringBuffer(2 * n);
  int k = m + n;
  for (int l = m; l < k; l++) {
    appendHexPair(bytes[l], stringbuffer);
  }
  return stringbuffer.toString();
}
private static void appendHexPair(byte bt, StringBuffer stringbuffer) {

private static String bufferToHex(byte bytes[]) {
  return bufferToHex(bytes, 0, bytes.length);
}
private static String bufferToHex(byte bytes[], int m, int n) {

private static String bufferToHex(byte bytes[]) {
  return bufferToHex(bytes, 0, bytes.length);
}
private static String bufferToHex(byte bytes[], int m, int n) {

public static String getFileMD5String(File file) throws IOException {
  InputStream fis;
  fis = new FileInputStream(file);
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = fis.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  fis.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}

public static String getFileMD5String(InputStream in) throws IOException {
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = in.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  in.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}
private static String bufferToHex(byte bytes[]) {

public static String getFileMD5String(InputStream in) throws IOException {
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = in.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  in.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}
private static String bufferToHex(byte bytes[]) {

public static String getFileMD5String(File file) throws IOException {
  InputStream fis;
  fis = new FileInputStream(file);
  byte[] buffer = new byte[1024];
  int numRead;
  while ((numRead = fis.read(buffer)) > 0) {
    MESSAGE_DIGEST_5.update(buffer, 0, numRead);
  }
  fis.close();
  return bufferToHex(MESSAGE_DIGEST_5.digest());
}