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English | 简体中文
Alibaba Cloud SDK for C++ 让您不用复杂编程即可访问云服务器、负载均衡、云监控等阿里云服务。这里向您介绍如何获取 Alibaba Cloud SDK for C++ 并开始调用。
如果您在使用的过程中遇到任何问题,欢迎前往阿里云SDK问答社区提问,提问前请阅读提问引导。亦可在当前 GitHub 提交 Issues。
在使用 Alibaba Cloud SDK for C++ 前,确保您已经:
说明: 为了保证您的账号安全,建议您使用RAM账号来访问阿里云服务。阿里云账号对拥有的资源有全部权限。RAM账号由阿里云账号授权创建,仅有对特定资源限定的操作权限。详情参见RAM。
开通了云产品服务。有些云产品如对象存储(OSS)需要先在阿里云控制台开通服务。
安装支持 C++ 11 或更高版本的编译器:
安装 CMake 3.0 或以上版本
建议 4G 或以上内存
使用 Git 命令获取
git clone https://github.com/aliyun/aliyun-openapi-cpp-sdk.git
创建生成必要的构建文件
cd <path/to/aliyun-openapi-cpp-sdk>
mkdir sdk_build
cd sdk_build
cmake ..
要在 Linux 平台进行编译, 您必须安装依赖的外部库文件 libcurl、libopenssl、libuuid、libjsoncpp, 通常情况下,系统的包管理器中的会有提供。
例如:在基于 Redhat / Fedora 的系统上安装这些软件包
sudo dnf install libcurl-devel openssl-devel libuuid-devel libjsoncpp-devel
在基于 Debian/Ubuntu 的系统
sudo apt-get install libcurl4-openssl-dev libssl-dev uuid-dev libjsoncpp-dev
在安装依赖库后执行以下命令编译并安装:
手动编译安装
cd aliyun-openapi-cpp-sdk
mkdir sdk_build
cd sdk_build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr ..
make
sudo make install
或者通过 easyinstall.sh一键式安装
cd aliyun-openapi-cpp-sdk
sudo sh easyinstall.sh
Alibaba Cloud SDK for C++ 将被安装在 /usr.
通过 cmake 生成 Visual Studio 解决方案:
在 aliyun-openapi-cpp-sdk 下创建 sdk_build 目录
打开 cmake-ui 选择源代码目录和构建目录,点击 配置(configure) 和 生成(generate) 构建 VS 解决方案。
进入 sdk_build 目录使用 Visual Studio 打开 alibabacloud-sdk.sln 解决方案。
选择构建 Release 输出,并打开配置管理器勾选 INSTALL。
构建 -> 生成解决方案。
或者您也可以使用 VS 的开发人员命令提示符,执行以下命令编译并安装:
msbuild ALL_BUILD.vcxproj
msbuild INSTALL.vcxproj
Alibaba Cloud SDK for C++ 将安装在 C:\Program File (x86)\alibabacloud-sdk 目录
注意:请以管理员身份运行 Visual Studio,否则无法安装 SDK
在调用 Alibaba Cloud SDK for C++ 时,您首先需要配置预处理器定义 ALIBABACLOUD_SHARED 以引用阿里云 C++ SDK 的共享库,然后通过创建 Client 实例提供身份验证,并指定云服务的地域,然后发送API请求。
以下代码展示了如何调用 DescribeInstancesAPI 查询指定地域所有 ECS 实例的详细信息。
说明: 您需要替换示例中的 your-region-id、your-access-key-id 和 your-access-key-secret 的值。
#include <iostream>
#include <alibabacloud/core/AlibabaCloud.h>
#include <alibabacloud/ecs/EcsClient.h>
using namespace AlibabaCloud;
using namespace AlibabaCloud::Ecs;
int main(int argc, char** argv) {
// 初始化 SDK
AlibabaCloud::InitializeSdk();
// 配置 ecs 实例
ClientConfiguration configuration("<your-region-id>");
EcsClient client("<your-access-key-id>", "<your-access-key-secret>", configuration);
// 创建API请求并设置参数
Model::DescribeInstancesRequest request;
request.setPageSize(10);
auto outcome = client.describeInstances(request);
if (!outcome.isSuccess()) {
// 异常处理
std::cout << outcome.error().errorCode() << std::endl;
AlibabaCloud::ShutdownSdk();
return -1;
}
std::cout << "totalCount: " << outcome.result().getTotalCount() << std::endl;
// 关闭 SDK
AlibabaCloud::ShutdownSdk();
return 0;
}
复制上述文件到 ecs_test.cc。
Linux 下
~$ g++ -o ecstest ecs_test.cc --std=c++11 -lalibabacloud-sdk-core -l alibabacloud-sdk-ecs
~$ ./ecstest
# 结果或错误返回将在此展示
~$
CPP SDK 使用 libcurl 作为底层 HTTP 传输库。
下面两个参数用来传递超时参数到 libcurl。
默认值
connectTimeout: 5000ms
readTimeout: 10000ms
可以在创建 Client 或者发 Requst 设置超时参数。
Requst 设置优先级高于 Client 设置。
输入 0 或者 -1 到 setConnectTimeout 和 setReadTimeout 可以禁用此功能。
下面代码是设置超时参数的例子,由于 Request 优先级高于 Client,所以最终 ConnectTimeout 为 1000ms, readTimeout 为 6000ms。
#include <iostream>
#include <alibabacloud/core/AlibabaCloud.h>
#include <alibabacloud/ecs/EcsClient.h>
using namespace AlibabaCloud;
using namespace AlibabaCloud::Ecs;
int main(int argc, char** argv) {
// Initialize the SDK
AlibabaCloud::InitializeSdk();
// Configure the ECS instance
ClientConfiguration configuration("<your-region-id>");
// specify timeout when create client.
configuration.setConnectTimeout(1500);
configuration.setReadTimeout(4000);
EcsClient client("<your-access-key-id>", "<your-access-key-secret>", configuration);
// Create an API request and set parameters
Model::DescribeInstancesRequest request;
request.setPageSize(10);
// specify timeout when request
request.setConnectTimeout(1000);
request.setReadTimeout(6000);
auto outcome = client.describeInstances(request);
if (!outcome.isSuccess()) {
// Handle exceptions
std::cout << outcome.error().errorCode() << std::endl;
AlibabaCloud::ShutdownSdk();
return -1;
}
std::cout << "totalCount: " << outcome.result().getTotalCount() << std::endl;
// Close the SDK
AlibabaCloud::ShutdownSdk();
return 0;
}
更多 例程
提交 Issue, 不符合指南的问题可能会立即关闭。
每个版本的详细更改记录在发行说明中。
提交 Pull Request 之前请阅读贡献指南。
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