MD5加密

import java.security.MessageDigest;

public class MD5Util {
    public static String md5Encode(String inStr) throws Exception {
        MessageDigest md5 = null;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            System.out.println(e.toString());
            e.printStackTrace();
            return "";
        }
        byte[] byteArray = inStr.getBytes("UTF-8");
        byte[] md5Bytes = md5.digest(byteArray);
        StringBuffer hexValue = new StringBuffer();
        for (int i = 0; i < md5Bytes.length; i++) {
            int val = (md5Bytes[i]) & 0xff;
            if (val < 16) {
            hexValue.append("0");
            }
            hexValue.append(Integer.toHexString(val));
        }
        return hexValue.toString();
    }
    public static void main(String[] args) throws Exception {
        String a = "123456";
        System.out.println("a:" + a);
        System.out.println("md5:" + md5Encode(a));
        System.out.println("md5:" + md5Encode(a).equals("e10adc3949ba59abbe56e057f20f883e"));
    }
}