AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
KoubeiItemBatchqueryRequest request = new KoubeiItemBatchqueryRequest();
request.setBizContent("{" +
"\"page_no\":\"1\"," +
"\"page_size\":10," +
"\"item_ids\":\"2015052100077000000000120773\"," +
"\"operation_context\":{" +
"\"op_role\":\"MERCHANT\"" +
"    }," +
"\"auth_code\":\"6a8713a414da4a2dafdb7c24e597TX80\"" +
"  }");
KoubeiItemBatchqueryResponse 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);
KoubeiItemBatchqueryRequest  request= new KoubeiItemBatchqueryRequest() ;
request.BizContent="{" +
"\"page_no\":\"1\"," +
"\"page_size\":10," +
"\"item_ids\":\"2015052100077000000000120773\"," +
"\"operation_context\":{" +
"\"op_role\":\"MERCHANT\"" +
"    }," +
"\"auth_code\":\"6a8713a414da4a2dafdb7c24e597TX80\"" +
"  }";
KoubeiItemBatchqueryResponse 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 KoubeiItemBatchqueryRequest ();
$request->setBizContent("{" .
"\"page_no\":\"1\"," .
"\"page_size\":10," .
"\"item_ids\":\"2015052100077000000000120773\"," .
"\"operation_context\":{" .
"\"op_role\":\"MERCHANT\"" .
"    }," .
"\"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.item.batchquery&app_id=5278&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=
  {
"page_no":"1",
"page_size":10,
"item_ids":"2015052100077000000000120773",
"operation_context":{
"op_role":"MERCHANT"
    },
"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。

{
	"sign":"ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE",
	"koubei_item_batchquery_response":{
		"msg":"Success",
		"code":"10000",
		"total_page_no":"3",
		"current_page_no":"1",
		"total_items":"50",
		"item_infos":[
			{
				"original_price":100.00,
				"picture_details":"商品图片",
				"item_id":"20161011111111111111113",
				"item_type":"TRADE_VOUCHER",
				"subject":"商品A",
				"tb_cover":"r3xDgvHISgKTRZ9QKmdVZQAAACMAAQED",
				"weight":1,
				"memo":"备注",
				"pic_coll":[
					"{\"IUFIDASFIEUIOFKSFIUFE83IEI\":\"http://object.alipay.com/getpic.do?kjkdjkjj\"}"
				],
				"item_status":"EFFECTIVE",
				"inventory":1000,
				"descriptions":[
					{
						"details":[
							"小标题下方的描述文案"
						],
						"title":"小标题"
					}
				],
				"cover":"0yaPA96AQPqJDIju28pvAgAAACMAAQEC",
				"gmt_start":"2016-10-07 11:30:24",
				"category_id":"2017042500132112",
				"price":50.00,
				"trade_voucher_item_template":{
					"support_book":"T",
					"buyer_notes":[
						{
							"details":[
								"小标题下方的描述文案"
							],
							"title":"小标题"
						}
					],
					"validity_period":"200"
				},
				"shop_ids":"2015100300077000000001860010,2015100100077000000001855137",
				"price_mode":"FIX"
			}
		],
		"page_size":"20"
	}
}

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