AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
AlipayEbppJfexportInstbillQueryRequest request = new AlipayEbppJfexportInstbillQueryRequest();
request.setBizContent("{" +
"\"biz_type\":\"JF\"," +
"\"sub_biz_type\":\"GAS\"," +
"\"bill_key\":\"01284845\"," +
"\"owner_name\":\"张三\"," +
"\"bill_date\":\"201703\"," +
"\"charge_inst\":\"CZSTRQ3083\"," +
"\"extend_field\":\"{\\\"name\\\":\\\"张三\\\"}\"" +
"  }");
AlipayEbppJfexportInstbillQueryResponse 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);
AlipayEbppJfexportInstbillQueryRequest  request= new AlipayEbppJfexportInstbillQueryRequest() ;
request.BizContent="{" +
"\"biz_type\":\"JF\"," +
"\"sub_biz_type\":\"GAS\"," +
"\"bill_key\":\"01284845\"," +
"\"owner_name\":\"张三\"," +
"\"bill_date\":\"201703\"," +
"\"charge_inst\":\"CZSTRQ3083\"," +
"\"extend_field\":\"{\\\"name\\\":\\\"张三\\\"}\"" +
"  }";
AlipayEbppJfexportInstbillQueryResponse 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 AlipayEbppJfexportInstbillQueryRequest ();
$request->setBizContent("{" .
"\"biz_type\":\"JF\"," .
"\"sub_biz_type\":\"GAS\"," .
"\"bill_key\":\"01284845\"," .
"\"owner_name\":\"张三\"," .
"\"bill_date\":\"201703\"," .
"\"charge_inst\":\"CZSTRQ3083\"," .
"\"extend_field\":\"{\\\"name\\\":\\\"张三\\\"}\"" .
"  }");
$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=alipay.ebpp.jfexport.instbill.query&app_id=5052&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=
  {
"biz_type":"JF",
"sub_biz_type":"GAS",
"bill_key":"01284845",
"owner_name":"张三",
"bill_date":"201703",
"charge_inst":"CZSTRQ3083",
"extend_field":"{\"name\":\"张三\"}"
  }

//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",
	"alipay_ebpp_jfexport_instbill_query_response":{
		"msg":"Success",
		"inst_bills":[
			{
				"amount":100.00,
				"uniq_id":"4cdbc040657a4847b2667e31d9e2c3d9",
				"owner_name":"张三",
				"balance":66.00,
				"inst_bill_no":"2017050610000001",
				"bill_date":"20170506",
				"bill_fines":10.00,
				"extend_field":"{\"billDate\":\"20170321\"}",
				"bill_key":"23314134"
			}
		],
		"sub_biz_type":"WATER",
		"code":"10000",
		"owner_name":"张三",
		"charge_inst":"SHWATER",
		"cache_key":"utility_4cdbc040657a4847b2667e31d9e2c3d9",
		"biz_type":"JF",
		"extend_field":"{\"billDate\":\"20170321\"}",
		"charge_mode":"2",
		"bill_key":"23314134"
	}
}

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