SHA加密过程

package com.pff.pff;

import java.security.MessageDigest;
import org.apache.commons.codec.binary.Hex;

public class Sha {

    private static String test = "pff";

    public static void main(String[] args) {
        testSha();
    }

    public static void testSha() {
        try {
            MessageDigest instance = MessageDigest.getInstance("SHA");
            instance.update(test.getBytes());
            byte[] digest = instance.digest();
            System.out.println("SHA加密后的数据 = " + Hex.encodeHexString(digest));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}