AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","app_id","your private_key","json","GBK","alipay_public_key","RSA2");
ZhimaCustomerEpCertificationInitializeRequest request = new ZhimaCustomerEpCertificationInitializeRequest();
request.setBizContent("{" +
"\"transaction_id\":\"ZGYD201610252323000001234\"," +
"\"product_code\":\"w1010100003000001889\"," +
"\"biz_code\":\"EP_ALIPAY_ACCOUNT\"," +
"\"identity_param\":\"{\\\"identity_type\\\":\\\"EP_CERT_INFO\\\",\\\"cert_type\\\":\\\"IDENTITY_CARD\\\",\\\"cert_name\\\":\\\"收委\\\",\\\"cert_no\\\":\\\"260104197909275964\\\"}\"," +
"\"merchant_config\":\"{\\\"xxx\\\":\\\"xxx\\\"}\"," +
"\"ext_biz_param\":\"{}\"" +
"}");
ZhimaCustomerEpCertificationInitializeResponse 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);
ZhimaCustomerEpCertificationInitializeRequest  request= new ZhimaCustomerEpCertificationInitializeRequest() ;
request.BizContent="{" +
"\"transaction_id\":\"ZGYD201610252323000001234\"," +
"\"product_code\":\"w1010100003000001889\"," +
"\"biz_code\":\"EP_ALIPAY_ACCOUNT\"," +
"\"identity_param\":\"{\\\"identity_type\\\":\\\"EP_CERT_INFO\\\",\\\"cert_type\\\":\\\"IDENTITY_CARD\\\",\\\"cert_name\\\":\\\"收委\\\",\\\"cert_no\\\":\\\"260104197909275964\\\"}\"," +
"\"merchant_config\":\"{\\\"xxx\\\":\\\"xxx\\\"}\"," +
"\"ext_biz_param\":\"{}\"" +
"}";
ZhimaCustomerEpCertificationInitializeResponse 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 ZhimaCustomerEpCertificationInitializeRequest ();
$request->setBizContent("{" .
"\"transaction_id\":\"ZGYD201610252323000001234\"," .
"\"product_code\":\"w1010100003000001889\"," .
"\"biz_code\":\"EP_ALIPAY_ACCOUNT\"," .
"\"identity_param\":\"{\\\"identity_type\\\":\\\"EP_CERT_INFO\\\",\\\"cert_type\\\":\\\"IDENTITY_CARD\\\",\\\"cert_name\\\":\\\"收委\\\",\\\"cert_no\\\":\\\"260104197909275964\\\"}\"," .
"\"merchant_config\":\"{\\\"xxx\\\":\\\"xxx\\\"}\"," .
"\"ext_biz_param\":\"{}\"" .
"}");
$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.customer.ep.certification.initialize&app_id=4531&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=
  {
"transaction_id":"ZGYD201610252323000001234",
"product_code":"w1010100003000001889",
"biz_code":"EP_ALIPAY_ACCOUNT",
"identity_param":"{\"identity_type\":\"EP_CERT_INFO \",\"cert_type\":\"IDENTITY_CARD\",\"cert_name\":\"收委\",\"cert_no\":\"260104197909275964\"}",
"merchant_config":"{\"xxx\":\"xxx\"}",
"ext_biz_param":"{}"
  }

//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_customer_ep_certification_initialize_response":{
		"msg":"Success",
		"code":"10000",
		"biz_no":"ZM201505190ad422641448624704506270407"
	},
	"sign":"ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE"
}

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