前言
做跨境电商怎样收款是所有商家都需要关注的。自由度最高的是基于wordpress的外贸独立站，独立站建好以后需要对接收款通道。easylink是香港的支付通道。下面分享对接过程。  支付引导支付流程
交易流程指的是拜访网站的客户从选取商品下单到支付成功的全部流程。  支付流程插件研发
熟练全部流程后，就要按照通道供给的接口文档编写代码。代码编写的重点模块有签名函数，有订单提交，异步通告处理，同步转函数等。
签名
本通道采用sha256加密方式 function buildMysign($sort_para, $key, $sign_type = "MD5")
{
$prestr = createLinkstring ( $sort_para ); $prestr = $prestr .&
. $key;
$mysgin = sign ( $prestr, $sign_type ); return
$mysgin;
} function createLinkstring($para)
{ $arg = ""
; foreach($paraas
$key => $val) { if ($key == "accessKey" || $key == "merchantCardNumber" || $key == "BankId" || $key == "merReserved"
) continue
; else $arg .= $key . "=" . $val . "&"
;
} $arg = rtrim($arg, &
); return
$arg;
} function paraFilter($para)
{ $para_filter = array
(); foreach ($para as
$key => $val) {
$para_filter [$key] = $para [$key];
} return
$para_filter;
} function argSort($para)
{
ksort ( $para );
reset ( $para ); return
$para;
} function sign($prestr, $sign_type = MD5)
{
$sign = ;
$sign = hash($sign_type, $prestr); return
$sign;
}
订单提交
订单提交是组织好官方需要的字段，经过api接口提交并获取结果 class Submit
{ function buildRequestPara($para_temp)
{ $key = ********
; $sign_method = SHA256
;
$para_filter = paraFilter($para_temp);
$para_sort = argSort($para_filter);
$mysign = buildMysign($para_sort, trim($key), strtoupper(trim($sign_method))); $para_sort[accessKey
] = $mysign; return
$para_sort;
} function getMsg($para_temp, $gateway)
{
$respondData = ; $para = $this
->buildRequestPara($para_temp);
$ch = curl_init ($gateway); curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true
); curl_setopt ( $ch, CURLOPT_BINARYTRANSFER, true
); curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER,false
);
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $para);
$output = curl_exec ( $ch );
curl_close ( $ch );
$respondData = json_decode($output); return
$respondData;
}
}
异步通告
在用户支付成功后，通道会主动发起支付成功的通告到网站。需要专门的函数来处理支付结果。 function check_easylink_ipn_response()
{ global
$woocommerce, $wpdb; require_once("lib/notify.class.php"
); if (($_SERVER[REQUEST_METHOD] === POST) && preg_match("/wc_easylink_notify/i", $_SERVER[REQUEST_URI
])) { $Notify = new
Notify();
$verify_result = $Notify->verifyNotify(); if
( $verify_result ) { if ($_POST["respCode"] != "00"
) { error_log(__METHOD__ .  HP_EOL . $_POST["respMsg"
]); } elseif( $_POST[status] == 1
) { $sref = $_POST[paymentId
]; $statustr = $this
->easylink_processing; $check_query = $wpdb->get_results("SELECT order_id,order_state,mref FROM {$wpdb->prefix}easylink_data WHERE sref = ".addslashes($sref).""
, ARRAY_A);
$check_query_count = count($check_query); if( $check_query_count >= 1
) { if($check_query[0][order_state] == I
) { $query = "update {$wpdb->prefix}easylink_data set order_state=C where sref=".addslashes($sref).""
;
$wpdb->query($query); $inv_id = $check_query[0][order_id
]; $mref = $check_query[0][mref
]; $order = new
WC_Order($inv_id); $order->update_status($statustr, __(Order has been paid by ID: . $mref, easylink-for-woocommerce
));
wc_reduce_stock_levels( $order->get_id() ); add_post_meta( $inv_id, _paid_date, current_time(mysql), true
); update_post_meta( $inv_id, _transaction_id
, wc_clean($mref) );
$order->payment_complete(wc_clean($mref));
$woocommerce->cart->empty_cart();
}
}
}
} //接口返回 exit(success
);
}
}
同步转
在网站处理支付成功的信息的同期，客户浏览器需要转到支付成功页面。 function check_easylink_return()
{ global
$woocommerce, $wpdb; if (($_SERVER[REQUEST_METHOD] === GET) && preg_match("/wc_easylink_return/i", $_SERVER[REQUEST_URI
])) { //error_log(__METHOD__ . HP_EOL .print_r($_GET, true)); $mref = $_GET[mref
]; sleep(1
); $check_query = $wpdb->get_results("SELECT order_id,order_state FROM {$wpdb->prefix}easylink_data WHERE mref = ".addslashes($mref).""
, ARRAY_A);
$check_query_count = count($check_query); if($check_query_count >= 1
){ $inv_id = $check_query[0][order_id
]; $inv_state = $check_query[0][order_state
]; switch
( $inv_state ) { case C
: $order = new
WC_Order($inv_id); wp_redirect(esc_url_raw(add_query_arg(key, $order->get_order_key(), add_query_arg(order-received, $inv_id, $this
->get_return_url($order))))); break
; default
:
wp_redirect( wc_get_cart_url() );
} exit
;
}
}
wp_redirect(home_url());
}
完整的支付插件
【支付插件】woocommerce对接香港支付通道easylink
插件设置
插件安装经过wordpress的后台页面上传而后激活就可，设置亦非常简单。  插件设置
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发表于 2024-7-29 23:50:05
