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更新时间：2024-10-17 GMT+08:00

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C++ SDK

本章节介绍新版C++ SDK，您可以参考本章节进行快速集成开发。

准备工作

注册华为账号并开通华为云，并完成实名认证，账号不能处于欠费或冻结状态。
已具备开发环境，支持 C++ 14 及以上版本，要求安装 CMake 3.10 及以上版本。
登录“我的凭证 > 访问秘钥”页面，获取Access Key（AK）和Secret Access Key（SK）。
图1 获取AK、SK
登录“我的凭证”页面，获取“IAM用户名”、“账号名”以及待使用区域的“项目ID”。调用服务时会用到这些信息，请提前保存。
本样例以“华北-北京四”区域为例，获取对应的项目ID（project_id）。

图2 我的凭证

安装SDK

在Linux系统上安装SDK

获取依赖包

所需的这些第三方软件包在大部分系统的包管理工具中都有提供，例如基于 Debian/Ubuntu 的系统。

sudo apt-get install libcurl4-openssl-dev libboost-all-dev libssl-dev libcpprest-dev

spdlog 需要从源码进行安装。

git clone https://github.com/gabime/spdlog.git
cd spdlog
mkdir build
cd build
cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON ..  // 用以生成动态库
make
sudo make install

编译安装

git clone https://github.com/huaweicloud/huaweicloud-sdk-cpp-v3.git
cd huaweicloud-sdk-cpp-v3
mkdir build
cd build
cmake ..
make
sudo make install

完成上述操作后，C++ SDK 安装目录为 /usr/local。

在Windows系统上安装SDK
1. 安装 vcpkg 并使用 vcpkg 安装所需软件包
```
vcpkg install curl cpprestsdk boost openssl spdlog
```
2. 使用CLion进行编译
  1. 使用CLion打开huaweicloud-sdk-cpp-v3 目录。
  2. 选择“File > Settings”。
  3. 选择“Build, Execution, Deployment > > CMake”。
  4. 在CMake options中加入：
```
-DCMAKE_TOOLCHAIN_FILE={your vcpkg install dir}/scripts/buildsystems/vcpkg.cmake
```
  5. 右键 CMakeLists.txt 选择 Load CMake Project。
  6. 选择Build开始编译。
3. 安装C++ SDK
  编译完成后选择“Build > Install”。
  
  完成上述操作后，C++ SDK 安装目录为 C:\Program File (x86)\huaweicloud-sdk-cpp-v3。

开始使用

在开始使用之前，请确保您安装的是最新版本的SDK。使用过时的版本可能会导致兼容性问题或无法使用最新功能。您可以参考安装SDK完成sdk的安装和编译。

详细的SDK介绍，使用异步客户端，配置日志等操作请参见SDK中心、C++ SDK使用指导。

导入依赖模块

#include <cstdlib>
#include <iostream>
#include <string>
#include <memory>
#include <huaweicloud/core/exception/Exceptions.h>
#include <huaweicloud/core/Client.h>
#include <huaweicloud/frs/v2/FrsClient.h>
using namespace HuaweiCloud::Sdk::Frs::V2;
using namespace HuaweiCloud::Sdk::Frs::V2::Model;
using namespace HuaweiCloud::Sdk::Core;
using namespace HuaweiCloud::Sdk::Core::Exception;
using namespace std;

配置客户端连接参数

默认配置

// 使用默认配置
HttpConfig httpConfig = HttpConfig();

网络代理（可选）

// 根据需要配置网络代理
httpConfig.setProxyProtocol("http");
httpConfig.setProxyHost("proxy.huawei.com");
httpConfig.setProxyPort("8080");
httpConfig.setProxyUser("username");
httpConfig.setProxyPassword("password");

超时配置（可选）

// 默认连接超时为60秒，默认读取超时为120秒。可根据需求修改该默认值
httpConfig.setConnectTimeout(60);
httpConfig.setReadTimeout(120);

SSL配置（可选）

// 配置跳过服务端证书验证
httpConfig.setIgnoreSslVerification(true);

配置认证信息
配置AK、SK、projectId信息。华为云通过AK识别用户的身份，通过SK对请求数据进行签名验证，用于确保请求的机密性、完整性和请求者身份的正确性。
```
string ak = getenv("HUAWEICLOUD_SDK_AK");
string sk = getenv("HUAWEICLOUD_SDK_SK");
string projectId = getenv("PROJECT_ID");
auto auth = std::make_unique<BasicCredentials>();
auth->withAk(ak)
   .withSk(sk)
   .withProjectId(projectId);
```
认证参数说明：
- ak、sk：访问秘钥信息，获取方法请参见准备工作。
- projectId：华为云项目ID，获取方法请参见准备工作。
- 认证用的 ak 和sk 硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全。
- 本示例以 ak 和 sk 保存在环境变量中来实现身份验证为例，运行本示例前请先在本地环境中设置环境变量HUAWEICLOUD_SDK_AK，HUAWEICLOUD_SDK_SK和PROJECT_ID。
图3 Windows环境新建环境变量

初始化客户端

指定云服务endpoint方式

string endpoint = "https://face.cn-north-4.myhuaweicloud.com";
auto client = FrsClient::newBuilder()
        .withCredentials(std::unique_ptr<Credentials>(auth.release()))
        .withHttpConfig(httpConfig)
        .withEndPoint(endpoint)
        .build();

endpoint：华为云各服务应用区域和各服务的终端节点，详情请查看地区和终端节点。

发送请求并查看响应

// 以调用人脸检测接口 RecognizeGeneralTable 为例
DetectFaceByBase64Request request;
FaceDetectBase64Req body;
body.setImageBase64("图片的base64编码");
request.setBody(body);
std::cout << "-----begin execute request-------" << std::endl;

使用人脸比对SDK时，image1、image2参数需为相同类型，即同为url、base64或file。

异常处理

表1 异常处理
一级分类	一级分类说明	二级分类	二级分类说明
ConnectionException	连接类异常	HostUnreachableException	网络不可达、被拒绝。
ConnectionException	连接类异常	SslHandShakeException	SSL认证异常。
RequestTimeoutException	响应超时异常	CallTimeoutException	单次请求，服务器处理超时未返回。
RequestTimeoutException	响应超时异常	RetryOutageException	在重试策略消耗完成后，仍无有效的响应。
ServiceResponseException	服务器响应异常	ServerResponseException	服务端内部错误，Http响应码：[500,]。
ServiceResponseException	服务器响应异常	ClientRequestException	请求参数不合法，Http响应码：[400, 500)

// 捕获和处理不同类型的异常
try {
        auto reponse = client->detectFaceByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

SDK demo 代码解析

人脸检测

DetectFaceByBase64Request request;
FaceDetectBase64Req body;
    body.setImageBase64("图片的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->detectFaceByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

人脸比对

CompareFaceByBase64Request request;
FaceCompareBase64Req body;
    body.setImage1Base64("图片1的base64编码");
    body.setImage2Base64("图片2的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->compareFaceByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

人脸搜索

SearchFaceByBase64Request request;
    request.setFaceSetName("人脸库名称");
FaceSearchBase64Req body;
    body.setImageBase64("图片的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->searchFaceByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

创建人脸库

CreateFaceSetRequest request;
CreateFaceSetReq body;
    body.setFaceSetName("人脸库名称");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->createFaceSet(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

查询人脸库

ShowFaceSetRequest request;
    request.setFaceSetName("人脸库名称");
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->showFaceSet(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

查询所有人脸库

ShowAllFaceSetsRequest request;
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->showAllFaceSets(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

删除人脸库

DeleteFaceSetRequest request;
    request.setFaceSetName("人脸库名称");
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->deleteFaceSet(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

添加人脸

AddFacesByBase64Request request;
    request.setFaceSetName("人脸库名称");
AddFacesBase64Req body;
    body.setImageBase64("图片的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->addFacesByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

删除人脸

DeleteFaceByFaceIdRequest request;
    request.setFaceSetName("人脸库名称");
    request.setFaceId("人脸ID");
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->deleteFaceByFaceId(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

批量删除人脸

BatchDeleteFacesRequest request;
    request.setFaceSetName("人脸库名称");
DeleteFacesBatchReq body;
    body.setFilter("过滤条件");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->batchDeleteFaces(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

更新人脸

UpdateFaceRequest request;
    request.setFaceSetName("人脸库名称");
UpdateFaceReq body;
    body.setFaceId("人脸库ID");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->updateFace(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

查询人脸

ShowFacesByFaceIdRequest request;
    request.setFaceSetName("人脸库名城管");
    request.setFaceId("人脸ID");
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->showFacesByFaceId(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

动作活体检测

DetectLiveByBase64Request request;
LiveDetectBase64Req body;
    body.setActions("动作代码顺序列表");
    body.setVideoBase64("视频数据的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->detectLiveByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

静默活体检测

DetectLiveFaceByBase64Request request;
LiveDetectFaceBase64Req body;
    body.setImageBase64("图片的base64编码");
    request.setBody(body);
    std::cout << "-----begin execute request-------" << std::endl;
try {
        auto reponse = client->detectLiveFaceByBase64(request);
        std::cout << reponse->getHttpBody() << std::endl;
    } catch (HostUnreachableException& e) {
        std::cout << "host unreachable:" << e.what() << std::endl;
    } catch (SslHandShakeException& e) {
        std::cout << "ssl handshake error:" << e.what() << std::endl;
    } catch (RetryOutageException& e) {
        std::cout << "retryoutage error:" << e.what() << std::endl;
    } catch (CallTimeoutException& e) {
        std::cout << "call timeout:" <<  e.what() << std::endl;
    } catch (ServiceResponseException& e) {
        std::cout << "http status code:" << e.getStatusCode() << std::endl;
        std::cout << "error code:" << e.getErrorCode() << std::endl;
        std::cout << "error msg:" << e.getErrorMsg() << std::endl;
        std::cout << "RequestId:" << e.getRequestId() << std::endl;
    } catch (exception& e) {
        std:cout << "unknown exception:" << e.what() << std::endl;
    }
    std::cout << "------request finished--------" << std::endl;
    return0;

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