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AWS IoT 使用 AWS SDKs程式碼範例 - AWS SDK 程式碼範例

文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 AWS SDK 範例

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 AWS SDK 範例

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

AWS IoT 使用 AWS SDKs程式碼範例

下列程式碼範例示範如何 AWS IoT 搭配 AWS 軟體開發套件 (SDK) 使用 。

基本概念是程式碼範例,這些範例說明如何在服務內執行基本操作。

Actions 是大型程式的程式碼摘錄,必須在內容中執行。雖然動作會告訴您如何呼叫個別服務函數,但您可以在其相關情境中查看內容中的動作。

其他 資源

開始使用

下列程式碼範例示範如何開始使用 AWS IoT。

C++
SDK for C++

CMakeLists.txt CMake 檔案的程式碼。

# Set the minimum required version of CMake for this project. cmake_minimum_required(VERSION 3.13) # Set the AWS service components used by this project. set(SERVICE_COMPONENTS iot) # Set this project's name. project("hello_iot") # Set the C++ standard to use to build this target. # At least C++ 11 is required for the AWS SDK for C++. set(CMAKE_CXX_STANDARD 11) # Use the MSVC variable to determine if this is a Windows build. set(WINDOWS_BUILD ${MSVC}) if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK. string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all") list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH}) endif () # Find the AWS SDK for C++ package. find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS}) if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS) # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging. # set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this # and set the proper subdirectory to the executables' location. AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}) endif () add_executable(${PROJECT_NAME} hello_iot.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})

hello_iot.cpp 來源檔案的程式碼。

#include <aws/core/Aws.h> #include <aws/iot/IoTClient.h> #include <aws/iot/model/ListThingsRequest.h> #include <iostream> /* * A "Hello IoT" starter application which initializes an AWS IoT client and * lists the AWS IoT topics in the current account. * * main function * * Usage: 'hello_iot' * */ int main(int argc, char **argv) { Aws::SDKOptions options; // Optional: change the log level for debugging. // options.loggingOptions.logLevel = Aws::Utils::Logging::LogLevel::Debug; Aws::InitAPI(options); // Should only be called once. { Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::IoT::IoTClient iotClient(clientConfig); // List the things in the current account. Aws::IoT::Model::ListThingsRequest listThingsRequest; Aws::String nextToken; // Used for pagination. Aws::Vector<Aws::IoT::Model::ThingAttribute> allThings; do { if (!nextToken.empty()) { listThingsRequest.SetNextToken(nextToken); } Aws::IoT::Model::ListThingsOutcome listThingsOutcome = iotClient.ListThings( listThingsRequest); if (listThingsOutcome.IsSuccess()) { const Aws::Vector<Aws::IoT::Model::ThingAttribute> &things = listThingsOutcome.GetResult().GetThings(); allThings.insert(allThings.end(), things.begin(), things.end()); nextToken = listThingsOutcome.GetResult().GetNextToken(); } else { std::cerr << "List things failed" << listThingsOutcome.GetError().GetMessage() << std::endl; break; } } while (!nextToken.empty()); std::cout << allThings.size() << " thing(s) found." << std::endl; for (auto const &thing: allThings) { std::cout << thing.GetThingName() << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return 0; }
  • 如需 API 詳細資訊,請參閱 AWS SDK for C++ API 參考中的 listThings

注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

Java
SDK for Java 2.x
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.iot.IotClient; import software.amazon.awssdk.services.iot.model.ListThingsRequest; import software.amazon.awssdk.services.iot.model.ListThingsResponse; import software.amazon.awssdk.services.iot.model.ThingAttribute; import software.amazon.awssdk.services.iot.paginators.ListThingsIterable; import java.util.List; public class HelloIoT { public static void main(String[] args) { System.out.println("Hello AWS IoT. Here is a listing of your AWS IoT Things:"); IotClient iotClient = IotClient.builder() .region(Region.US_EAST_1) .build(); listAllThings(iotClient); } public static void listAllThings(IotClient iotClient) { iotClient.listThingsPaginator(ListThingsRequest.builder() .maxResults(10) .build()) .stream() .flatMap(response -> response.things().stream()) .forEach(attribute -> { System.out.println("Thing name: " + attribute.thingName()); System.out.println("Thing ARN: " + attribute.thingArn()); }); } }
  • 如需 API 詳細資訊,請參閱 AWS SDK for Java 2.x API 參考中的 listThings

Kotlin
SDK for Kotlin
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

import aws.sdk.kotlin.services.iot.IotClient import aws.sdk.kotlin.services.iot.model.ListThingsRequest suspend fun main() { println("A listing of your AWS IoT Things:") listAllThings() } suspend fun listAllThings() { val thingsRequest = ListThingsRequest { maxResults = 10 } IotClient { region = "us-east-1" }.use { iotClient -> val response = iotClient.listThings(thingsRequest) val thingList = response.things if (thingList != null) { for (attribute in thingList) { println("Thing name ${attribute.thingName}") println("Thing ARN: ${attribute.thingArn}") } } } }
  • 如需 API 詳細資訊,請參閱 SDK AWS for Kotlin API 參考中的 listThings

下列程式碼範例示範如何開始使用 AWS IoT。

C++
SDK for C++

CMakeLists.txt CMake 檔案的程式碼。

# Set the minimum required version of CMake for this project. cmake_minimum_required(VERSION 3.13) # Set the AWS service components used by this project. set(SERVICE_COMPONENTS iot) # Set this project's name. project("hello_iot") # Set the C++ standard to use to build this target. # At least C++ 11 is required for the AWS SDK for C++. set(CMAKE_CXX_STANDARD 11) # Use the MSVC variable to determine if this is a Windows build. set(WINDOWS_BUILD ${MSVC}) if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK. string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all") list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH}) endif () # Find the AWS SDK for C++ package. find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS}) if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS) # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging. # set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this # and set the proper subdirectory to the executables' location. AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}) endif () add_executable(${PROJECT_NAME} hello_iot.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})

hello_iot.cpp 來源檔案的程式碼。

#include <aws/core/Aws.h> #include <aws/iot/IoTClient.h> #include <aws/iot/model/ListThingsRequest.h> #include <iostream> /* * A "Hello IoT" starter application which initializes an AWS IoT client and * lists the AWS IoT topics in the current account. * * main function * * Usage: 'hello_iot' * */ int main(int argc, char **argv) { Aws::SDKOptions options; // Optional: change the log level for debugging. // options.loggingOptions.logLevel = Aws::Utils::Logging::LogLevel::Debug; Aws::InitAPI(options); // Should only be called once. { Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::IoT::IoTClient iotClient(clientConfig); // List the things in the current account. Aws::IoT::Model::ListThingsRequest listThingsRequest; Aws::String nextToken; // Used for pagination. Aws::Vector<Aws::IoT::Model::ThingAttribute> allThings; do { if (!nextToken.empty()) { listThingsRequest.SetNextToken(nextToken); } Aws::IoT::Model::ListThingsOutcome listThingsOutcome = iotClient.ListThings( listThingsRequest); if (listThingsOutcome.IsSuccess()) { const Aws::Vector<Aws::IoT::Model::ThingAttribute> &things = listThingsOutcome.GetResult().GetThings(); allThings.insert(allThings.end(), things.begin(), things.end()); nextToken = listThingsOutcome.GetResult().GetNextToken(); } else { std::cerr << "List things failed" << listThingsOutcome.GetError().GetMessage() << std::endl; break; } } while (!nextToken.empty()); std::cout << allThings.size() << " thing(s) found." << std::endl; for (auto const &thing: allThings) { std::cout << thing.GetThingName() << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return 0; }
  • 如需 API 詳細資訊,請參閱 AWS SDK for C++ API 參考中的 listThings

注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

Java
SDK for Java 2.x
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.iot.IotClient; import software.amazon.awssdk.services.iot.model.ListThingsRequest; import software.amazon.awssdk.services.iot.model.ListThingsResponse; import software.amazon.awssdk.services.iot.model.ThingAttribute; import software.amazon.awssdk.services.iot.paginators.ListThingsIterable; import java.util.List; public class HelloIoT { public static void main(String[] args) { System.out.println("Hello AWS IoT. Here is a listing of your AWS IoT Things:"); IotClient iotClient = IotClient.builder() .region(Region.US_EAST_1) .build(); listAllThings(iotClient); } public static void listAllThings(IotClient iotClient) { iotClient.listThingsPaginator(ListThingsRequest.builder() .maxResults(10) .build()) .stream() .flatMap(response -> response.things().stream()) .forEach(attribute -> { System.out.println("Thing name: " + attribute.thingName()); System.out.println("Thing ARN: " + attribute.thingArn()); }); } }
  • 如需 API 詳細資訊,請參閱 AWS SDK for Java 2.x API 參考中的 listThings

Kotlin
SDK for Kotlin
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

import aws.sdk.kotlin.services.iot.IotClient import aws.sdk.kotlin.services.iot.model.ListThingsRequest suspend fun main() { println("A listing of your AWS IoT Things:") listAllThings() } suspend fun listAllThings() { val thingsRequest = ListThingsRequest { maxResults = 10 } IotClient { region = "us-east-1" }.use { iotClient -> val response = iotClient.listThings(thingsRequest) val thingList = response.things if (thingList != null) { for (attribute in thingList) { println("Thing name ${attribute.thingName}") println("Thing ARN: ${attribute.thingArn}") } } } }
  • 如需 API 詳細資訊,請參閱 SDK AWS for Kotlin API 參考中的 listThings

SDK for C++

CMakeLists.txt CMake 檔案的程式碼。

# Set the minimum required version of CMake for this project. cmake_minimum_required(VERSION 3.13) # Set the AWS service components used by this project. set(SERVICE_COMPONENTS iot) # Set this project's name. project("hello_iot") # Set the C++ standard to use to build this target. # At least C++ 11 is required for the AWS SDK for C++. set(CMAKE_CXX_STANDARD 11) # Use the MSVC variable to determine if this is a Windows build. set(WINDOWS_BUILD ${MSVC}) if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK. string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all") list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH}) endif () # Find the AWS SDK for C++ package. find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS}) if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS) # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging. # set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this # and set the proper subdirectory to the executables' location. AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}) endif () add_executable(${PROJECT_NAME} hello_iot.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})

hello_iot.cpp 來源檔案的程式碼。

#include <aws/core/Aws.h> #include <aws/iot/IoTClient.h> #include <aws/iot/model/ListThingsRequest.h> #include <iostream> /* * A "Hello IoT" starter application which initializes an AWS IoT client and * lists the AWS IoT topics in the current account. * * main function * * Usage: 'hello_iot' * */ int main(int argc, char **argv) { Aws::SDKOptions options; // Optional: change the log level for debugging. // options.loggingOptions.logLevel = Aws::Utils::Logging::LogLevel::Debug; Aws::InitAPI(options); // Should only be called once. { Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::IoT::IoTClient iotClient(clientConfig); // List the things in the current account. Aws::IoT::Model::ListThingsRequest listThingsRequest; Aws::String nextToken; // Used for pagination. Aws::Vector<Aws::IoT::Model::ThingAttribute> allThings; do { if (!nextToken.empty()) { listThingsRequest.SetNextToken(nextToken); } Aws::IoT::Model::ListThingsOutcome listThingsOutcome = iotClient.ListThings( listThingsRequest); if (listThingsOutcome.IsSuccess()) { const Aws::Vector<Aws::IoT::Model::ThingAttribute> &things = listThingsOutcome.GetResult().GetThings(); allThings.insert(allThings.end(), things.begin(), things.end()); nextToken = listThingsOutcome.GetResult().GetNextToken(); } else { std::cerr << "List things failed" << listThingsOutcome.GetError().GetMessage() << std::endl; break; } } while (!nextToken.empty()); std::cout << allThings.size() << " thing(s) found." << std::endl; for (auto const &thing: allThings) { std::cout << thing.GetThingName() << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return 0; }
  • 如需 API 詳細資訊,請參閱 AWS SDK for C++ API 參考中的 listThings

注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

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