MD5和SHA-1混合加盐加密

MD5和SHA-1混合加盐加密

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Random;

public class MD5Sha1Util {
    /**
     * byte[]字节数组 转换成 十六进制字符串
     *
     * @param arr 要转换的byte[]字节数组
     * @return String 返回十六进制字符串
     */
    private static String hex(byte[] arr) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i