Java 如何从android应用程序向WHMCS安装发送正确的post请求？

我正试图通过我的android应用程序向我的WHMCS安装发送AddClient post请求，但它不断返回“结果=错误；消息=你没有输入你的名字”

我让它成功地进行了身份验证，但它似乎没有发布我正在发送的jsonObject

以下是WHMCS api文档的链接：

它应该返回“result=success”

---

但实际上返回“result=error；message=You未输入您的名字”。

您的API在本示例中似乎不起作用

尝试一下，若json在那个里不起作用，那个么问题就在你们的api中

public void createWHMCSUser(final String emailID, final String random, final String uid) {

    final String AccessUserKey = "abc123";
    final String AccessKey = "abc123";
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                URL url = new URL("http://whmcs.installation.com/includes/api.php?action=AddClient&username=abc123&password=abc123&accesskey=abc123");
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setRequestMethod("POST");
                conn.setRequestProperty("Content-Type", "application/json");
                conn.setRequestProperty("Accept","application/json");
                conn.setDoOutput(true);
                conn.setDoInput(true);

                JSONObject jsonParam = new JSONObject();
                jsonParam.put("action", "AddClient");
                jsonParam.put("identifier", AccessUserKey);
                jsonParam.put("secret", AccessKey);
                jsonParam.put("firstname", "User");
                jsonParam.put("lastname", "Name");
                jsonParam.put("email", emailID);
                jsonParam.put("address1", "na");
                jsonParam.put("city", "na");
                jsonParam.put("state", "na");
                jsonParam.put("postcode", "00000");
                jsonParam.put("country", "US");
                jsonParam.put("phonenumber", "0000000000");
                jsonParam.put("password2", random);
                jsonParam.put("repsonsetype", "json");

                Log.i("JSON", jsonParam.toString());
                DataOutputStream os = new DataOutputStream(conn.getOutputStream());
                os.writeBytes(URLEncoder.encode(jsonParam.toString(), "UTF-8"));
                //os.writeBytes(jsonParam.toString());

                os.flush();
                os.close();

                Log.i("STATUS", String.valueOf(conn.getResponseCode()));
                Log.i("MSG", conn.getResponseMessage());



                conn.disconnect();
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    });

    thread.start();

}