update去除站点层，更改设备图标为站点图标

ZhuDongming

2020-06-12 69a3e436bedfc828930e08cbbac7df57f4fd83cb

 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));
    }
}