最近，一个项目要求做交通银行在线支付，ecshop本身没有这方面的接口，于是通过一些时间的专研，做了一个插件出来。有好的东西，当然要分享，在此特地分享出来，希望能够帮助到跟我一样有需要的人，为大家减轻一下开发的负担，也多请大家指出一些好的方法和建议，相互的学习、进步！
在使用插件之前，请配置好交通银行在线支付的环境（具体安装方法，交行提供的demo会有，也不是很难，注意好细节就行）。安装好之后，请将把下面的插件源码和语言包源码按路径保存到相应文件，最后进入后台的支付模块安装即可。
插件源码（includes/modules/payment/bankcomm.PHP）:
/**
* 交通银行在线支付插件 For Ecshop
* Author: Reson
* Date: 2014/03/31
*/
if (!defined('IN_ECS'))
{
die('Hacking attempt');
}
$payment_lang = ROOT_PATH . 'languages/' .$GLOBALS['_CFG']['lang']. '/payment/bankcomm.PHP';
if (file_exists($payment_lang))
{
global $_LANG;
include_once($payment_lang);
}
/* 模块的基本信息 */
if (isset($set_modules) && $set_modules == TRUE)
{
$i = isset($modules) ? count($modules) : 0;
/* 代码 */
$modules[$i]['code'] = basename(__FILE__,'.PHP');
/* 描述对应的语言项 */
$modules[$i]['desc'] = 'bankcomm_desc';
/* 是否支持货到付款 */
$modules[$i]['is_cod'] = '0';
/* 是否支持在线支付 */
$modules[$i]['is_online'] = '1';
/* 支付费用，由配送决定 */
$modules[$i]['pay_fee'] = '0';
/* 作者 */
$modules[$i]['author'] = 'Reson';
/* 网址 */
$modules[$i]['website'] = '//www.jb51.cc';
/* 版本号 */
$modules[$i]['version'] = '1.0.0.0';
/* 配置信息 */
$modules[$i]['config'] = array();return;
}
/**
* 类
*/
class bankcomm
{
/**
* 构造函数
*
* @return void
*/
function bankcomm()
{
}
function __construct()
{
$this->bankcomm();
}
/**
* 提交函数
*/
function get_code($order)
{
//获得表单传过来的数据
$param['interfaceVersion'] = '1.0.0.0';//消息版本号*
$param['merID'] = '301310063009501';//商户号 (测试号,后期可自行更改)
$param['orderid'] = $order['orderid'];//订单号*
$param['orderDate'] = local_date("Ymd",gmtime());//商户订单日期* yyyyMMdd
$param['orderTime'] = local_date("His",gmtime());//商户订单时间* HHmmss
$param['tranType'] = 0;//交易类别* 0:B2C
$param['amount'] = $order['amount'];//订单金额*
$param['curType'] = 'CNY';//交易币种* 默认CNY
$param['orderContent'] = '';
$param['orderMono'] = $order['orderMono'];//商家备注
$param['phdFlag'] = '';//物流配送标志
$param['notifyType'] = 1;//通知方式* 1 通知
$param['merURL'] = '';
$param['goodsURL'] = $order['goodsURL'];//取货URL
$param['jumpSeconds'] = '';
$param['payBatchNo'] = '';
$param['proxyMerName'] = '';
$param['proxyMerType'] = '';
$param['proxyMerCredentials'] = '';
$param['netType'] = 0;//渠道编号* 0:html渠道
$param['issBankNo'] = '';$tranCode = "cb2200_sign";
htmlentities($param['orderMono'],"ENT_QUOTES","utf-8");
//连接字符串
$source = '';
foreach($param as $key=>$val){
if($key != 'issBankNo')
$source .= $val.'|';
}
$source = substr($source,strlen($source)-1);
//连接地址
$socketUrl = "tcp://127.0.0.1:8080";//这里的端口根据自己配置的情况
$fp = stream_socket_client($socketUrl,$errno,$errstr,30);
$retMsg="";
//
if (!$fp) {
echo "$errstr ($errno)
\n";
} else
{
$in = "";
$in .= "
$in .= "
$in .= "
$in .= "
fwrite($fp,$in);
while (!feof($fp)) {
$retMsg =$retMsg.fgets($fp,1024);
}
fclose($fp);
}
//解析返回xml
$dom = new DOMDocument;
$dom->loadXML($retMsg);$retCode = $dom->getElementsByTagName('retCode');
$retCode_value = $retCode->item(0)->nodeValue;$errMsg = $dom->getElementsByTagName('errMsg');
$errMsg_value = $errMsg->item(0)->nodeValue;$signMsg = $dom->getElementsByTagName('signMsg');
$signMsg_value = $signMsg->item(0)->nodeValue;$orderUrl = $dom->getElementsByTagName('orderUrl');
$orderUrl_value = $orderUrl->item(0)->nodeValue;$MerchID = $dom->getElementsByTagName('MerchID');
$merID = $MerchID->item(0)->nodeValue;
//echo "retMsg=".$retMsg;
//echo $retCode_value." ".$errMsg_value." ".$signMsg_value." ".$orderUrl_value;
if($retCode_value != "0"){
//echo "交易返回码：".$retCode_value."
";
//echo "交易错误信息：" .$errMsg_value."
";
return "交易错误信息：" .$errMsg_value."
";
}else{
$param['signMsg_value'] = $signMsg_value;
$param['orderUrl_value'] = $orderUrl_value;
$form_code = $this->create_html($param);//创建提交表单
return $form_code;
}}/**
* 创建提交表单
*/
function create_html($param){
$pay_html ='
return $pay_html;
}
/**
* 处理函数
*/
function respond()
{
$tranCode = "cb2200_verify";
$notifyMsg = $_REQUEST["notifyMsg"];
$lastIndex = strripos($notifyMsg,"|");
$signMsg = substr($notifyMsg,$lastIndex+1); //签名信息
$srcMsg = substr($notifyMsg,$lastIndex+1);//原文//连接地址
$socketUrl = "tcp://127.0.0.1:8080";
$fp = stream_socket_client($socketUrl,30);
$retMsg="";
if (!$fp) {
//echo "$errstr ($errno)
\n";
return false;
}else{
$in = "";
$in .= "
$in .= "
$in .= "
$in .= "
fwrite($fp,1024);
}
fclose($fp);
}//解析返回xml
$dom = new DOMDocument;
$dom->loadXML($retMsg);$retCode = $dom->getElementsByTagName('retCode');
$retCode_value = $retCode->item(0)->nodeValue;$errMsg = $dom->getElementsByTagName('errMsg');
$errMsg_value = $errMsg->item(0)->nodeValue;$signMsg = $dom->getElementsByTagName('signMsg');
$signMsg_value = $signMsg->item(0)->nodeValue;if($retCode_value != ''){
//echo "交易返回码：".$retCode_value."
";
//echo "交易错误信息：" .$errMsg_value."
";
return false;
}else{
$arr = preg_split("/\|{1,}/",$srcMsg);
$pay_id = $arr[1];
$action_note = base64_decode($arr[16]);
// 完成订单。
order_paid($pay_id,PS_PAYED,$action_note);
//告诉用户交易完成
return true;
}///////////////// respond END ///////////////
}}
?>
语言包源码（languages/zh_cn/payment/bankcomm.PHP）:
/**
* 交通银行语言文件
* by: Reson
* 2014/03/31
*/
global $_LANG;
$_LANG['bankcomm'] = '交通银行在线支付';
$_LANG['bankcomm_desc'] = '交通银行在线支付';
$_LANG['pay_button'] = '交通银行支付';
?>
以下是调用的范例：
$order_['orderid'] = $order['order_sn'];
$order_['amount'] = $order['yd_price'];
$order_['orderMono'] = '测试';//商家备注
$order_['goodsURL'] = "http://".$_SERVER['HTTP_HOST'].'/respond.PHP?code=bankcomm';//取货URL
$pay_code = new bankcomm;
$pay_button = $pay_code->get_code($order_);
$order['pay_button'] = $pay_button;//即此时已经生成了一个支付按钮
