public static String 32Md5(String text) {
    StringBuffer buf = null;
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(text.getBytes());
        byte b[] = md.digest();
        int i;
        buf = new StringBuffer("");
        for (int offset = 0; offset < b.length
 
; offset++) {
            i = b[offset];
            if(i<0) i+= 256;
            if(i<16)
                buf.append("0");
            buf.append(Integer.toHexString(i));
        }} catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
e.printStackTrace();
    }
    return 
 
buf.toString();
}

public static String 16Md5(String text) {
    StringBuffer buf = null;
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(text.getBytes());
        byte b[] = md.digest();
        int i;
        buf = new StringBuffer("");
        for (int offset = 0
 
; offset < b.length; offset++) {
            i = b[offset];
            if(i<0) i+= 256;
            if(i<16)
                buf.append("0");
            buf.append(Integer.toHexString(i));
        }} catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
e.printStackTrace();
    }
    return buf.toString().substring(8,24);

}