jsonObject.set("mobilePhoneNumbe", mobilePhoneNumbe);
	String mob=jsonObject.toString();
	String base = "https://api.leancloud.cn/1.1/requestMobilePhoneVerify";
	try {
		String s=httpsUtil.post(base,mob);
}

调用的方法为

public static String post(String url,String data)
			throws MalformedURLException, IOException {
		byte[] d = null;
		HttpsURLConnection conn = getConnection(url);
		conn.setRequestMethod("POST");
		conn.setDoOutput(true);
		conn.setRequestProperty("Content-Type", "application/json");
		conn.setRequestProperty("Content-Length", data.length() + "");
		OutputStream out = conn.getOutputStream();
		out.write(data.getBytes("utf-8"));
		out.flush();
		out.close();
		if (conn.getResponseCode() == 200) {
			d = readInputStream(conn.getInputStream());
			return new String(d, "utf-8");
		} else {
			return conn.getResponseMessage();
		}
	}

请问哪里的问题