新增根据mac查询sensor的sql

ZhuDongming

2019-08-06 c00fd90a440e17954791061f4f8ee604cf99ea5b

 src/main/java/com/moral/common/util/Crypto.java

@@ -29,4 +29,8 @@
        }
        return newstr;
    }
    public static boolean checkpw(String plaintext, String hashed){
            hashed = hashed == null?"":hashed;
            return  hashed.equals(md5(plaintext));
    }
}