package com.ycl.common.dingding;

import java.security.MessageDigest;

/**
 * 字符加密转义
 */
public class DingEncodeUtil {
    public static String getMD5(byte[] source) {
        String s = null;
        char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(source);
            byte[] tmp = md.digest();
            char[] str = new char[16];
            int k = 0;
            for (int i = 0; i < 16; i++) {
                byte byte0 = tmp[i];
                //只取高位
                str[k++] = hexDigits[(byte0 >>> 4 & 0xf) % 10];
            }
            // 换后的结果转换为字符串
            s = new String(str);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return s;
    }
}