MD5

public String getMD5(String sourceStr) throws UnsupportedEncodingException {
String resultStr = "";
try {
byte[] temp = sourceStr.getBytes();
MessageDigest md5 = MessageDigest.getInstance("MD5");
md5.update(temp);
// resultStr = new String(md5.digest());
byte[] b = md5.digest();
for (int i = 0; i < b.length; i++) {
char[] digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
'9', 'A', 'B', 'C', 'D', 'E', 'F' };
char[] ob = new char[2];
ob[0] = digit[(b[i] >>> 4) & 0X0F];
ob[1] = digit[b[i] & 0X0F];
resultStr += new String(ob);
}
return resultStr;
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
return null;
}
}