";
        $json_content    = json_encode($json,JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE);
//        $json_content    = '{"items":{"payer_object_type":"customer","settlement_org_id":"635981601368444928","bill_month":1638288000,"name":"格式网络1","service_contract_no":"新服务合同543534543"}}';
        //aes密钥
        $aes_key         = $this->config['aes_key'];
        $aes_iv          = $this->config['aes_iv'];
        $private_rsa_key = $this->config['mer_rsa_private_key'];

//        var_dump("AES 加密之前的数据 ");
//        var_dump($json_content);
//        echo "
";
//        echo "
加密参数
";
//        var_dump($json);
//        echo ($json_content);
        //aes 加密
        $data['data']    = $this->aesEncode($json_content, $aes_key,$aes_iv);
//        echo "
AES 加密之后
";
//        echo (  $data['data'] );
//        var_dump(  $private_rsa_key );

        //用商户ras私钥签名
        $data['sign']           = $this->sign($data['data'], $private_rsa_key);
//        echo ("
---数字签名---
");
//        echo ($data['sign']);
        $data['ptcode']         = $this->config['ptcode'];
        $data['bussiness_code'] = $bussiness_code;
//        echo "
请求数据
";
//        var_dump($data);
        //发送请求
//        echo json_encode($data,JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE);
        $request_result = $this->httpPost(json_encode($data,JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE), $this->config['url']);
//        echo "
";
//        echo "
响应数据
";
//        var_dump($request_result);
//        exit;
        //解密返回报文
        $result_json = json_decode($request_result,true);
        //用aes密钥解密报文
        $decode_content = $this->aesDecode($result_json['data'],$aes_key,$aes_iv);
//        var_dump($decode_content);
        return json_decode($decode_content,true);
//
    }
    // ras生成签名
    protected function sign($data, $private_rsa_key)
    {
        $priKey = $private_rsa_key;
        $res = "-----BEGIN PRIVATE KEY-----\n" .
            wordwrap($priKey, 64, "\n", true) .
            "\n-----END PRIVATE KEY-----";

        // 生成密钥资源id
        $private_key_resource_id = openssl_get_privatekey($res);
        if (empty($private_key_resource_id))
        {
            throw new \Exception("秘钥不能为空");
        }

        $verify = openssl_sign($data, $signature, $private_key_resource_id, OPENSSL_ALGO_MD5);
        openssl_free_key($private_key_resource_id);
        if(!$verify){
            throw new \Exception("签名失败");
        }
        // 二次Base64编码
        return base64_encode($signature);
    }

    // AES加密
    private function aesEncode($data, $aes_key,$iv){
        $encrypt_data = openssl_encrypt($data, $this->method, $aes_key, OPENSSL_RAW_DATA, $iv);
        return base64_encode($encrypt_data);
    }
    // AES解密
    private function aesDecode($data,$aes_key,$iv){
        $data = base64_decode($data);
        return openssl_decrypt($data, $this->method, $aes_key, OPENSSL_RAW_DATA, $iv);
    }

    private function httpPost($data,$url){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
        curl_setopt($ch,CURLOPT_TIMEOUT,600);
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_POST,true);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
        if (strpos($url, 'https') !== false) {
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_SSLVERSION, 1);
        }
        $ret_data = trim(curl_exec($ch));
        curl_close($ch);
        return $ret_data;

    }


}