AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
ZhimaMerchantOrderCreditPayRequest request = new ZhimaMerchantOrderCreditPayRequest();
request.setBizContent("{" +
"\"order_operate_type\":\"CANCEL，FINISH\"," +
"\"out_order_no\":\"20171223000212322434232\"," +
"\"zm_order_no\":\"20171223000212322434232\"," +
"\"out_trans_no\":\"20171223000212322434232\"," +
"\"pay_amount\":12.80," +
"\"remark\":\"用户取消订单\"" +
"  }");
ZhimaMerchantOrderCreditPayResponse response = alipayClient.execute(request);
if(response.isSuccess()){
System.out.println("调用成功");
} else {
System.out.println("调用失败");
}

IAopClient client = new DefaultAopClient("https://openapi.alipay.com/gateway.do", "app_id", "merchant_private_key", "json", "1.0", "RSA2", "alipay_public_key", "GBK", false);
ZhimaMerchantOrderCreditPayRequest  request= new ZhimaMerchantOrderCreditPayRequest() ;
request.BizContent="{" +
"\"order_operate_type\":\"CANCEL，FINISH\"," +
"\"out_order_no\":\"20171223000212322434232\"," +
"\"zm_order_no\":\"20171223000212322434232\"," +
"\"out_trans_no\":\"20171223000212322434232\"," +
"\"pay_amount\":12.80," +
"\"remark\":\"用户取消订单\"" +
"  }";
ZhimaMerchantOrderCreditPayResponse response=client.execute(request);
Console.WriteLine(response.Body);

$aop = new AopClient ();
$aop->gatewayUrl = 'https://openapi.alipay.com/gateway.do';
$aop->appId = 'your app_id';
$aop->rsaPrivateKey = '请填写开发者私钥去头去尾去回车，一行字符串';
$aop->alipayrsaPublicKey='请填写支付宝公钥，一行字符串';
$aop->apiVersion = '1.0';
$aop->signType = 'RSA2';
$aop->postCharset='GBK';
$aop->format='json';
$request = new ZhimaMerchantOrderCreditPayRequest ();
$request->setBizContent("{" .
"\"order_operate_type\":\"CANCEL，FINISH\"," .
"\"out_order_no\":\"20171223000212322434232\"," .
"\"zm_order_no\":\"20171223000212322434232\"," .
"\"out_trans_no\":\"20171223000212322434232\"," .
"\"pay_amount\":12.80," .
"\"remark\":\"用户取消订单\"" .
"  }");
$result = $aop->execute ( $request); 

$responseNode = str_replace(".", "_", $request->getApiMethodName()) . "_response";
$resultCode = $result->$responseNode->code;
if(!empty($resultCode)&&$resultCode == 10000){
echo "成功";
} else {
echo "失败";
}

https://openapi.alipay.com/gateway.do?timestamp=2013-01-01 08:08:08&method=zhima.merchant.order.credit.pay&app_id=5259&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=
  {
"order_operate_type":"CANCEL，FINISH",
"out_order_no":"20171223000212322434232",
"zm_order_no":"20171223000212322434232",
"out_trans_no":"20171223000212322434232",
"pay_amount":12.80,
"remark":"用户取消订单"
  }

//为确保安全通信，需自行验证响应示例中的sign值是否为蚂蚁金服所提供。

{
	"zhima_merchant_order_credit_pay_response":{
		"msg":"Success",
		"pay_status":"PAY_SUCCESS",
		"code":"10000",
		"alipay_fund_order_no":"2088000000000000",
		"zm_order_no":"20171223000212322434232",
		"pay_amount":12.80,
		"out_trans_no":"20171223000212322434232",
		"out_order_no":"20171223000212322434232",
		"pay_time":"2014-11-27 15:45:57"
	},
	"sign":"ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE"
}

{
	"zhima_merchant_order_credit_pay_response":{
		"msg":"Service Currently Unavailable",
		"code":"20000",
		"sub_msg":"系统繁忙",
		"sub_code":"isp.unknow-error"
	},
	"sign":"ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE"
}