Java笔记之MD5加密

public static String MD5(String strSrc) {

try {
MessageDigest md = MessageDigest.getInstance("MD5");

byte[] bt = strSrc.getBytes();
md.update(bt);
String strDes = bytes2Hex(md.digest());
return strDes;
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}

public static String bytes2Hex(byte[] bts) {
StringBuffer des = new StringBuffer();
String tmp = null;
for (int i = 0; i < bts.length; i++) {
tmp = (Integer.toHexString(bts[i] & 0xFF));
if (tmp.length() == 1) {
des.append("0");
}
des.append(tmp);
}
return des.toString();
}