Question

我在paytm中获得验证校验和错误到Android应用程序我已经在php中创建了校验和并从服务器发送到Android app.once app收到校验和再次参数将转到服务器验证校验和

应用代码

public void onStartTransaction (View view){

            String orderId = pref.getoId();
            String uid = pref.getuid();
            String email = pref.getemail();
            String mobile = pref.getMobileNumber();
            String checksum = pref.getchecksum();
            PaytmPGService Service = PaytmPGService.getProductionService();
            Map<String, String> paramMap = new HashMap<String, String>();
            paramMap.put("MID", "Goa3038161");
            paramMap.put("ORDER_ID", orderId);
            paramMap.put("CUST_ID", uid);
            paramMap.put("INDUSTRY_TYPE_ID", "Retail109");
            paramMap.put("CHANNEL_ID", "WAP");
            paramMap.put("TXN_AMOUNT", "99");
            paramMap.put("WEBSITE", "GWEB");
            paramMap.put("CALLBACK_URL", "https://goalert.in/verifyChecksum.php ");
            paramMap.put("EMAIL", email);
            paramMap.put("MOBILE_NO", mobile);
            paramMap.put("CHECKSUMHASH", checksum);
            PaytmOrder Order = new PaytmOrder(paramMap);

            Service.initialize(Order, null);

服务器代码

generateChecksum.php

此函数生成校验和并返回具有校验和值的应用程序

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

require_once("./lib/config_paytm.php");
require_once("./lib/encdec_paytm.php");

require_once 'include/DB_Functions.php';
$db = new DB_Functions();

if (isset($_POST['email']) && isset($_POST['mobile']) && isset($_POST['uid']) && isset($_POST['orderId'])){

    $email = $_POST['email'];
    $mobile = $_POST['mobile'];
    $uid = $_POST['uid'];
    $orderId = $_POST['orderId'];

}else {
    // required post params is missing
    $response["error"] = TRUE;
    $response["error_msg"] = "Unknown error";
    echo json_encode($response);
}

$checkSum = "";
// below code snippet is mandatory, so that no one can use your checksumgeneration url for other purpose .
$findme   = 'REFUND';
$findmepipe = '|';
$paramList = array();
$paramList["MID"] = 'Goa8161';
$paramList["ORDER_ID"] = $orderId;
$paramList["CUST_ID"] = $uid;
$paramList["INDUSTRY_TYPE_ID"] = 'Retail109';
$paramList["CHANNEL_ID"] = 'WAP';
$paramList["TXN_AMOUNT"] = '99';
$paramList["WEBSITE"] = 'GoB';
foreach($_POST as $key=>$value)
{  
  $pos = strpos($value, $findme);
  $pospipe = strpos($value, $findmepipe);
  if ($pos === false || $pospipe === false) 
    {
        $paramList[$key] = $value;
    }
}

//Here checksum string will return by getChecksumFromArray() function.
$checkSum= getChecksumFromArray($paramList,"gPFC");
//print_r($_POST);
$response["user"]= array("CHECKSUMHASH" => $checkSum,"orderId" => $_POST["orderId"], "payt_STATUS" => "1");
echo json_encode($response);

verifyChecksum.php

此函数将验证与paytm服务器的校验和

注意：请错误地忽略键中间参数的值

<?php
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;
$paytmChecksum = isset($_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 application’s 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, "gPFZSi", $paytmChecksum); //will return TRUE or FALSE string.
if ($isValidChecksum===TRUE){
$return_array["IS_CHECKSUM_VALID"] = "Y";
else
$return_array["IS_CHECKSUM_VALID"] = "N";
}
$return_array["IS_CHECKSUM_VALID"] = $isValidChecksum ? "Y" : "N";
$return_array["TXNTYPE"] = "";
$return_array["REFUNDAMT"] = "";
unset($return_array["CHECKSUMHASH"]);
$encoded_json = htmlentities(json_encode($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>
  Redirect 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>

当交易正在处理时，由于不活动而导致支付会话关闭时出错。当我在paytm上检查订单时它表示校验和错误

请帮助解决问题

Answer 1

可能有些事情可能出错。

让我先简单说明一步一步的过程，所以如果你找到的东西与你所做的不同，我们可以快速找出错误点。

1）应用程序通常会触发付款，然后发送需要生成checkSum的所有数据。

2）只有服务器必须生成校验和（纯粹出于安全原因）

3）支票和退款的校验和生成方法不同。至少在Java和Python中。（这在Paytm中真的很傻，而且有点乱，但那是另一天的故事）

4）应用程序必须调用Paytm API（带或不带SDK），一旦收到响应，必须要求服务器验证响应中的校验和发送。

注意事项： -

1）发送给Paytm的参数必须与checkSum生成中使用的参数相同。不用多说也不用说，空格，输入，破坏所有计数，并且将无法通过checkSum验证。

2）如果您正在处理退款，请不要在checkSum生成中发送REFID，但在调用Paytm API时发送。{/ p>

Answer 2

我看不到您在任何地方生成校验和，应该对计划发送的所有参数进行校验和。

似乎您：String checksum = pref.getchecksum();的实现在哪里？将其保留在主要对象之外，然后重试。

Answer 3

在春季使用paytm校验和很简单。

运行时会导致一些问题。

3个简单步骤即可解决所有问题。

1：-向您添加此依赖项pom.xml

      <Route path="/shop">
       <Shop> </Shop>
      </Route>

      <Route path="*">
        <NotFound></NotFound>
      </Route>

      <Route path="/review"> 
       <Review> </Review>
      </Route>

2：下载“ pg-checksum-1.0.jar”文件并重命名“ pg-checksum-1.0”

3：将pg-checksum-1.0.jar粘贴到“ C：\ Users \ xyz.m2 \ repository \ com \ paytm \ pg \ pg-checksum \ 1.0”

现在清理并构建您的项目，您将获得校验和字符串。

乐于助人；-）

paytm verifychecksum错误

3 个答案: