extend/alipay/pay/service/AlipayTradeService.php

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<?php
/* *
 * 功能：支付宝电脑网站支付
 * 版本：2.0
 * 修改日期：2017-05-01
 * 说明：
 * 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。
 */

require_once dirname(dirname ( __FILE__ )).'/AopSdk.php';

class AlipayTradeService {

	//支付宝网关地址
	public $gateway_url = "https://openapi.alipay.com/gateway.do";

	//支付宝公钥
	public $alipay_public_key;

	//商户私钥
	public $private_key;

	//应用id
	public $appid;

	//编码格式
	public $charset = "UTF-8";

	public $token = NULL;

	//返回数据格式
	public $format = "json";

	//签名方式
	public $signtype = "RSA2";

	function __construct($alipay_config){
		$this->gateway_url = $alipay_config['gatewayUrl'];
		$this->appid = $alipay_config['app_id'];
		$this->private_key = $alipay_config['merchant_private_key'];
		$this->alipay_public_key = $alipay_config['alipay_public_key'];
		$this->charset = $alipay_config['charset'];
		$this->signtype=$alipay_config['sign_type'];

		if(empty($this->appid)||trim($this->appid)==""){
			throw new Exception("appid should not be NULL!");
		}
		if(empty($this->private_key)||trim($this->private_key)==""){
			throw new Exception("private_key should not be NULL!");
		}
		if(empty($this->alipay_public_key)||trim($this->alipay_public_key)==""){
			throw new Exception("alipay_public_key should not be NULL!");
		}
		if(empty($this->charset)||trim($this->charset)==""){
			throw new Exception("charset should not be NULL!");
		}
		if(empty($this->gateway_url)||trim($this->gateway_url)==""){
			throw new Exception("gateway_url should not be NULL!");
		}