Android 成功生成Hashkey后，payUmoney集成中出现错误消息

我试图整合payUmoney的支付网关。我在跟踪 哈希键已成功生成，但我仍然无法使用live credential转到付款页面。 我正在使用此代码生成哈希键--

当我使用此方法发送由上述代码生成的哈希键时：

  private class GetHashesFromServerTask extends AsyncTask<String, String, String> {
    private ProgressDialog progressDialog;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("Please wait...");
        progressDialog.show();
    }

    @Override
    protected String doInBackground(String... postParams) {

        String merchantHash = "";
        try {
            //TODO Below url is just for testing purpose, merchant needs to replace this with their server side hash generation url
            URL url = new URL("https://payu.herokuapp.com/get_hash");

            String postParam = postParams[0];

            byte[] postParamsByte = postParam.getBytes("UTF-8");

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Length", String.valueOf(postParamsByte.length));
            conn.setDoOutput(true);
            conn.getOutputStream().write(postParamsByte);

            InputStream responseInputStream = conn.getInputStream();
            StringBuffer responseStringBuffer = new StringBuffer();
            byte[] byteContainer = new byte[1024];
            for (int i; (i = responseInputStream.read(byteContainer)) != -1; ) {
                responseStringBuffer.append(new String(byteContainer, 0, i));
            }

            JSONObject response = new JSONObject(responseStringBuffer.toString());

            Iterator<String> payuHashIterator = response.keys();
            while (payuHashIterator.hasNext()) {
                String key = payuHashIterator.next();
                switch (key) {
                    /**
                     * This hash is mandatory and needs to be generated from merchant's server side
                     *
                     */
                    case "payment_hash":
                        merchantHash = response.getString(key);
                        break;
                    default:
                        break;
                }
            }

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return merchantHash;
    }

    @Override
    protected void onPostExecute(String merchantHash) {
        super.onPostExecute(merchantHash);

        progressDialog.dismiss();
        payNowButton.setEnabled(true);

        if (merchantHash.isEmpty() || merchantHash.equals("")) {
            Toast.makeText(MainActivity.this, "Could not generate hash", Toast.LENGTH_SHORT).show();
        } else {
            mPaymentParams.setMerchantHash(merchantHash);

            if (AppPreference.selectedTheme != -1) {
                PayUmoneyFlowManager.startPayUMoneyFlow(mPaymentParams, MainActivity.this, AppPreference.selectedTheme, mAppPreference.isOverrideResultScreen());
            } else {
                PayUmoneyFlowManager.startPayUMoneyFlow(mPaymentParams, MainActivity.this, R.style.AppTheme_default, mAppPreference.isOverrideResultScreen());
            }
        }
    }
}

私有类GetHashesFromServerTask扩展了AsyncTask{
私有进程对话；
@凌驾
受保护的void onPreExecute（）{
super.onPreExecute（）；
progressDialog=新建progressDialog（MainActivity.this）；
progressDialog.setMessage（“请稍候…”）；
progressDialog.show（）；
}
@凌驾
受保护的字符串doInBackground（字符串…后参数）{
字符串“=”；
试一试{
//下面的TODO url仅用于测试目的，商户需要用其服务器端哈希生成url替换此url
URL=新URL（“https://payu.herokuapp.com/get_hash");
字符串后参数=后参数[0]；
字节[]后参数字节=后参数.getBytes（“UTF-8”）；
HttpURLConnection conn=（HttpURLConnection）url.openConnection（）；
conn.setRequestMethod（“POST”）；
conn.setRequestProperty（“内容类型”、“应用程序/x-www-form-urlencoded”）；
conn.setRequestProperty（“内容长度”，String.valueOf（postparamesbyte.Length））；
连接设置输出（真）；
conn.getOutputStream（）.write（后参数字节）；
InputStream响应InputStream=conn.getInputStream（）；
StringBuffer responseStringBuffer=新的StringBuffer（）；
字节[]字节容器=新字节[1024]；
对于（int i；（i=responseInputStream.read（字节容器））！=-1；）{
append（新字符串（字节容器，0，i））；
}
JSONObject response=newJSONObject（responseStringBuffer.toString（））；
迭代器payuHashIterator=response.keys（）；
while（payuHashIterator.hasNext（））{
String key=payuHashIterator.next（）；
开关（钥匙）{
/**
*此哈希是必需的，需要从商户的服务器端生成
*
*/
案例“付款散列”：
merchantHash=response.getString（键）；
打破
违约：
打破
}
}
}捕获（格式错误）{
e、 printStackTrace（）；
}捕获（协议例外e）{
e、 printStackTrace（）；
}捕获（IOE异常）{
e、 printStackTrace（）；
}捕获（JSONException e）{
e、 printStackTrace（）；
}
返回曼彻斯特；
}
@凌驾
PostExecute上受保护的void（字符串merchantshash）{
super.onPostExecute（Merchantshash）；
progressDialog.disclose（）；
payNowButton.setEnabled（真）；
if（merchantHash.isEmpty（）| | merchantHash.equals（“”）{
Toast.makeText（MainActivity.this，“无法生成哈希”，Toast.LENGTH_SHORT.show（）；
}否则{
mPaymentParams.setmerchantshash（merchantshash）；
如果（AppPreference.selectedTheme！=-1）{
PayUmoneyFlowManager.startPayUMoneyFlow（mPaymentParams，MainActivity.this，AppPreference.selectedTheme，MappReference.isOverrideResultScreen（））；
}否则{
PayUmoneyFlowManager.startPayUMoneyFlow（mPaymentParams，MainActivity.this，R.style.AppTheme_默认值，MappReference.isOverrideResultScreen（））；
}
}
}
}

生成哈希键的代码是否正确

---

感谢Andvance

确保发送到payUmoney网关的密钥与PHP脚本哈希生成中定义的密钥相同

例如：产品名称的键是

productInfo

确保每个字符都相同

---

否则代码是完美的，这只是您可能弄错的地方。

使用关键字firstName和productInfo生成哈希，并检查udf参数。

谢谢，我使用firstName和productInfo的字段“firstName”生成哈希，而不是productInfo。

  private class GetHashesFromServerTask extends AsyncTask<String, String, String> {
    private ProgressDialog progressDialog;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("Please wait...");
        progressDialog.show();
    }

    @Override
    protected String doInBackground(String... postParams) {

        String merchantHash = "";
        try {
            //TODO Below url is just for testing purpose, merchant needs to replace this with their server side hash generation url
            URL url = new URL("https://payu.herokuapp.com/get_hash");

            String postParam = postParams[0];

            byte[] postParamsByte = postParam.getBytes("UTF-8");

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Length", String.valueOf(postParamsByte.length));
            conn.setDoOutput(true);
            conn.getOutputStream().write(postParamsByte);

            InputStream responseInputStream = conn.getInputStream();
            StringBuffer responseStringBuffer = new StringBuffer();
            byte[] byteContainer = new byte[1024];
            for (int i; (i = responseInputStream.read(byteContainer)) != -1; ) {
                responseStringBuffer.append(new String(byteContainer, 0, i));
            }

            JSONObject response = new JSONObject(responseStringBuffer.toString());

            Iterator<String> payuHashIterator = response.keys();
            while (payuHashIterator.hasNext()) {
                String key = payuHashIterator.next();
                switch (key) {
                    /**
                     * This hash is mandatory and needs to be generated from merchant's server side
                     *
                     */
                    case "payment_hash":
                        merchantHash = response.getString(key);
                        break;
                    default:
                        break;
                }
            }

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return merchantHash;
    }

    @Override
    protected void onPostExecute(String merchantHash) {
        super.onPostExecute(merchantHash);

        progressDialog.dismiss();
        payNowButton.setEnabled(true);

        if (merchantHash.isEmpty() || merchantHash.equals("")) {
            Toast.makeText(MainActivity.this, "Could not generate hash", Toast.LENGTH_SHORT).show();
        } else {
            mPaymentParams.setMerchantHash(merchantHash);

            if (AppPreference.selectedTheme != -1) {
                PayUmoneyFlowManager.startPayUMoneyFlow(mPaymentParams, MainActivity.this, AppPreference.selectedTheme, mAppPreference.isOverrideResultScreen());
            } else {
                PayUmoneyFlowManager.startPayUMoneyFlow(mPaymentParams, MainActivity.this, R.style.AppTheme_default, mAppPreference.isOverrideResultScreen());
            }
        }
    }
}