AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
KoubeiCateringItemQueryRequest request = new KoubeiCateringItemQueryRequest();
request.setBizContent("{" +
"\"operator_type\":\"MERCHANT\"," +
"\"request_id\":\"2016102903214476899999999\"," +
"\"item_id\":\"2015090300006123123213213\"," +
"\"auth_code\":\"6a8713a414da4a2dafdb7c24e597TX80\"" +
"  }");
KoubeiCateringItemQueryResponse 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);
KoubeiCateringItemQueryRequest  request= new KoubeiCateringItemQueryRequest() ;
request.BizContent="{" +
"\"operator_type\":\"MERCHANT\"," +
"\"request_id\":\"2016102903214476899999999\"," +
"\"item_id\":\"2015090300006123123213213\"," +
"\"auth_code\":\"6a8713a414da4a2dafdb7c24e597TX80\"" +
"  }";
KoubeiCateringItemQueryResponse 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 KoubeiCateringItemQueryRequest ();
$request->setBizContent("{" .
"\"operator_type\":\"MERCHANT\"," .
"\"request_id\":\"2016102903214476899999999\"," .
"\"item_id\":\"2015090300006123123213213\"," .
"\"auth_code\":\"6a8713a414da4a2dafdb7c24e597TX80\"" .
"  }");
$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=koubei.catering.item.query&app_id=5275&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=
  {
"operator_type":"MERCHANT",
"request_id":"2016102903214476899999999",
"item_id":"2015090300006123123213213",
"auth_code":"6a8713a414da4a2dafdb7c24e597TX80"
  }

//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。

{
	"koubei_catering_item_query_response":{
		"msg":"Success",
		"original_price":120.12,
		"taobao_cover_image":"VZ4Uu9i-SEC0w6k7GxzNcwAAACMAAQQD",
		"picture_details":[
			"[0yaPA96AQPqJDIju28pvAgAAACMAAQEC",
			" VZ4Uu9i-SEC0w6k7GxzNcwAAACMAAQQD]"
		],
		"code":"10000",
		"buyer_notes":[
			{
				"details":[
					"小标题下方的描述文案"
				],
				"title":"小标题"
			}
		],
		"subject":"鱼香肉丝杨梅汁套餐",
		"merchant_introduction":{
			"image_urls":[
				"0yaPA96AQPqJDIju28pvAgAAACMAAQEC",
				"0yaPA96AQPqJDIju28pvAgAAACMAAQEC"
			],
			"title":"肯德基（蚂蚁金服店）店内环境。不得超过15个中文字符"
		},
		"package_notes":[
			"补充说明：套餐可以叠加使用"
		],
		"memo":"备注：肯德基（蚂蚁金服店）首推新品",
		"inventory":1000,
		"cover":"VZ4Uu9i-SEC0w6k7GxzNcwAAACMAAQQD",
		"gmt_start":"2016-10-07 11:30:24",
		"category_id":"2017081400178386",
		"price":119.99,
		"unavailable_periods":[
			{
				"end_day":"2017-05-03",
				"start_day":"2017-05-01"
			}
		],
		"shop_ids":[
			"[2015100300077000000001860010",
			" 2015100300077000000001860011]"
		],
		"item_id":"2015090300006123123213213",
		"validity_period":300,
		"weight":"2",
		"sku_id":"2017071013300001",
		"item_status":"EFFECTIVE",
		"available_periods":[
			{
				"time_start":"08:30",
				"available_week_days":"\"1,2\"",
				"time_end":"22:30"
			}
		],
		"item_dishes":[
			{
				"image_urls":[
					"0yaPA96AQPqJDIju28pvAgAAACMAAQEC",
					"0yaPA96AQPqJDIju28pvAgAAACMAAQEC"
				],
				"title":"鱼香肉丝",
				"desc":"鱼香肉丝盖浇饭"
			}
		],
		"ticket_display_mode":"USER_PAY_CODE",
		"item_packages":[
			{
				"item_units":[
					{
						"amount":100,
						"unit":"份",
						"price":88.12,
						"title":"宫保鸡丁",
						"spec":"大份"
					}
				],
				"title":"鱼香肉丝套餐"
			}
		],
		"request_id":"2016102903214476899999999",
		"latest_notice":"本店周五休息不上班"
	},
	"sign":"ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE"
}

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