Android paytm 支付网关响应

Question

我已经实施了 Paytm 支付系统，并且在我的意图之上使用网络意图一切正常，钱从客户的账户中扣除并添加到我的帐户中，但在交易完成后它卡在白页上说“重定向到应用程序”，我相信我应该编写代码以重定向回我的应用程序，但我不知道该怎么做，因为我找不到 onTransactionSucess() 事件或任何类似的事件，我也尝试过 onTransactionResponse但仍然没有回应。我检查了所有 paytm 文档并尝试联系 paytm 支持，但找不到方法。

Answer 1

希望您已添加验证校验和所需的“CALLBACK_URL”。 如 paytm 文档中所述

CALLBACK_URL - 避免篡改的安全参数。使用生成 Paytm 提供的服务器端校验和实用程序。商家必须确保 这总是在服务器上生成。生成的实用程序 checksumhash 可用here 。

希望这能起到神奇的作用。

Answer 2

我希望您已将此变量添加到您的代码中 -

PaytmPGService service;

如果您正在使用它，那么您可以获得所有与付款相关的方法：

service.startPaymentTransaction(this, true,
            true, new PaytmPaymentTransactionCallback() {

                @Override
                public void onTransactionResponse(Bundle inResponse) {
                    System.out.println("===== onTransactionResponse " + inResponse.toString());
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                        if (Objects.equals(inResponse.getString("STATUS"), "TXN_SUCCESS")) {
                            //    Payment Success
                        } else if (!inResponse.getBoolean("STATUS")) {
                            //    Payment Failed
                        }
                    }
                }

                @Override
                public void networkNotAvailable() {
                    // network error
                }

                @Override
                public void clientAuthenticationFailed(String inErrorMessage) {
                    // AuthenticationFailed
                }

                @Override
                public void someUIErrorOccurred(String inErrorMessage) {
                    // UI Error
                }

                @Override
                public void onErrorLoadingWebPage(int iniErrorCode, String inErrorMessage, String inFailingUrl) {
                    //  Web page loading error
                }

                @Override
                public void onBackPressedCancelTransaction() {
                    // on cancelling transaction
                }

                @Override
                public void onTransactionCancel(String inErrorMessage, Bundle inResponse) {
                    // maybe same as onBackPressedCancelTransaction()
                }
            });

希望对你有所帮助。

Answer 3

将默认回调 URL 更改为假设，'http://yourdomain（如果在本地主机上检查的 IP 地址）/pgResponse.php';。 将以下代码添加到 pgResponse.php

 <?php
        session_start(); 
        header("Pragma: no-cache");
        header("Cache-Control: no-cache");
        header("Expires: 0");



        // following files need to be included
        require_once("./lib/config_paytm.php");
        require_once("./lib/encdec_paytm.php");

        $paytmChecksum = "";
        $paramList = array();
        $isValidChecksum = "FALSE";

        $paramList = $_POST;
        $return_array= $_POST;
        $checkSum = getChecksumFromArray($paramList,PAYTM_MERCHANT_KEY);//generate new checksum
        $paytmChecksum = isset($_POST["CHECKSUMHASH"]) ? $_POST["CHECKSUMHASH"] : ""; //Sent by Paytm pg


        //Verify all parameters received from Paytm pg to your application. Like MID received from paytm pg is same as your applicationís MID, TXN_AMOUNT and ORDER_ID are same as what was sent by you to Paytm PG for initiating transaction etc.
        $isValidChecksum = verifychecksum_e($paramList, PAYTM_MERCHANT_KEY, $paytmChecksum); //will return TRUE or FALSE string.
        $return_array["IS_CHECKSUM_VALID"] = $isValidChecksum ? "Y" : "N";
        unset($return_array["CHECKSUMHASH"]);
        $mid = $_POST['MID'];
      $orderid = $_POST['ORDERID']; 


        $curl = curl_init();

        curl_setopt_array($curl, array(
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_URL => 'https://securegw-stage.paytm.in/order/status?JsonData={"MID":"'.$mid.'","ORDERID":"'.$orderid.'","CHECKSUMHASH":"'.$checkSum.'"}',
            CURLOPT_USERAGENT => 'Make Request'
        ));

        $resp = curl_exec($curl);
        $status= json_decode($resp)->STATUS;

//do something in your database


        $encoded_json = htmlentities(json_encode($return_array));



        ?>

        <html>
        <head>
             <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-I">
             <title>Paytm</title>
             <script type="text/javascript">
                    function response(){
                            return document.getElementById('response').value;
                    }
             </script>
        </head>
        <body>
          Redirecting back to the app.....</br>
          <form name="frm" method="post">
            <input type="hidden" id="response" name="responseField" value='<?php echo $encoded_json?>'>
          </form>
        </body>
        </html>

在安卓工作室中：

public void onTransactionResponse(Bundle inResponse) {
                            Log.d("Create Response", inResponse.toString());

                            String response = inResponse.getString("RESPMSG");
                            if (response.equals("Txn Successful.")) {
                                Toast.makeText(Bag.this,"Payment done",Toast.LENGTH_LONG).show();

                            }
                            else{
                                Toast.makeText(Bag.this,response,Toast.LENGTH_LONG).show();
                            }
                        }