$mer_cust_id = $_REQUEST['mer_cust_id'];
$usr_busi_agreement_id = $_REQUEST['usr_busi_agreement_id'];
$usr_pay_agreement_id = $_REQUEST['usr_pay_agreement_id'];
$map = new HashMap();
$map->put("service", $service);
$map->put("charset", $charset);
$map->put("mer_id", $mer_id);
$map->put("sign_type", $sign_type);
$map->put("res_format", $res_format);
$map->put("version", $version);
$map->put("trade_no", $trade_no);
//使用协议进行支付，上送如下参数：支付协议号必填、商户用户标识和用户业务协议号必填其一
$map->put("mer_cust_id", $mer_cust_id);
$map->put("usr_busi_agreement_id", $usr_busi_agreement_id);
$map->put("usr_pay_agreement_id", $usr_pay_agreement_id);
$reqData = MerToPlat::makeRequestDataByGet($map);
//这个是重要的
$sign = $reqData->getSign();
//这个是为了在本DEMO中显示签名结果。
$plain = $reqData->getPlain();
//这个是为了在本DEMO中显示签名原串
$url = $reqData->getUrl();
?>
<body>
<div id="HEADA"><?php
include "./head.php";
?>
</div>
<div id="MAINA">
<div class="mindexa">
