文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 [AWS SDK 範例](https://github.com/awsdocs/aws-doc-sdk-examples)。

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。

# 使用適用於 Java 2.x 的 SDK 的 Amazon ECS 範例
<a name="java_2_ecs_code_examples"></a>

下列程式碼範例示範如何使用 AWS SDK for Java 2.x 搭配 Amazon ECS 執行動作和實作常見案例。

*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。

每個範例均包含完整原始碼的連結，您可在連結中找到如何設定和執行內容中程式碼的相關指示。

**Topics**
+ [動作](#actions)

## 動作
<a name="actions"></a>

### `CreateCluster`
<a name="ecs_CreateCluster_java_2_topic"></a>

以下程式碼範例顯示如何使用 `CreateCluster`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.ExecuteCommandConfiguration;
import software.amazon.awssdk.services.ecs.model.ExecuteCommandLogging;
import software.amazon.awssdk.services.ecs.model.ClusterConfiguration;
import software.amazon.awssdk.services.ecs.model.CreateClusterResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.CreateClusterRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateCluster {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                   <clusterName>\s

                Where:
                   clusterName - The name of the ECS cluster to create.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        String clusterArn = createGivenCluster(ecsClient, clusterName);
        System.out.println("The cluster ARN is " + clusterArn);
        ecsClient.close();
    }

    public static String createGivenCluster(EcsClient ecsClient, String clusterName) {
        try {
            ExecuteCommandConfiguration commandConfiguration = ExecuteCommandConfiguration.builder()
                    .logging(ExecuteCommandLogging.DEFAULT)
                    .build();

            ClusterConfiguration clusterConfiguration = ClusterConfiguration.builder()
                    .executeCommandConfiguration(commandConfiguration)
                    .build();

            CreateClusterRequest clusterRequest = CreateClusterRequest.builder()
                    .clusterName(clusterName)
                    .configuration(clusterConfiguration)
                    .build();

            CreateClusterResponse response = ecsClient.createCluster(clusterRequest);
            return response.cluster().clusterArn();

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        return "";
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [CreateCluster](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/CreateCluster)。

### `CreateService`
<a name="ecs_CreateService_java_2_topic"></a>

以下程式碼範例顯示如何使用 `CreateService`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.AwsVpcConfiguration;
import software.amazon.awssdk.services.ecs.model.NetworkConfiguration;
import software.amazon.awssdk.services.ecs.model.CreateServiceRequest;
import software.amazon.awssdk.services.ecs.model.LaunchType;
import software.amazon.awssdk.services.ecs.model.CreateServiceResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateService {
        public static void main(String[] args) {
                final String usage = """

                                Usage:
                                  <clusterName> <serviceName> <securityGroups> <subnets> <taskDefinition>

                                Where:
                                  clusterName - The name of the ECS cluster.
                                  serviceName - The name of the ECS service to create.
                                  securityGroups - The name of the security group.
                                  subnets - The name of the subnet.
                                  taskDefinition - The name of the task definition.
                                """;

                if (args.length != 5) {
                        System.out.println(usage);
                        System.exit(1);
                }

                String clusterName = args[0];
                String serviceName = args[1];
                String securityGroups = args[2];
                String subnets = args[3];
                String taskDefinition = args[4];
                Region region = Region.US_EAST_1;
                EcsClient ecsClient = EcsClient.builder()
                                .region(region)
                                .build();

                String serviceArn = createNewService(ecsClient, clusterName, serviceName, securityGroups, subnets,
                                taskDefinition);
                System.out.println("The ARN of the service is " + serviceArn);
                ecsClient.close();
        }

        public static String createNewService(EcsClient ecsClient,
                        String clusterName,
                        String serviceName,
                        String securityGroups,
                        String subnets,
                        String taskDefinition) {

                try {
                        AwsVpcConfiguration vpcConfiguration = AwsVpcConfiguration.builder()
                                        .securityGroups(securityGroups)
                                        .subnets(subnets)
                                        .build();

                        NetworkConfiguration configuration = NetworkConfiguration.builder()
                                        .awsvpcConfiguration(vpcConfiguration)
                                        .build();

                        CreateServiceRequest serviceRequest = CreateServiceRequest.builder()
                                        .cluster(clusterName)
                                        .networkConfiguration(configuration)
                                        .desiredCount(1)
                                        .launchType(LaunchType.FARGATE)
                                        .serviceName(serviceName)
                                        .taskDefinition(taskDefinition)
                                        .build();

                        CreateServiceResponse response = ecsClient.createService(serviceRequest);
                        return response.service().serviceArn();

                } catch (EcsException e) {
                        System.err.println(e.awsErrorDetails().errorMessage());
                        System.exit(1);
                }
                return "";
        }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [CreateService](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/CreateService)。

### `DeleteService`
<a name="ecs_DeleteService_java_2_topic"></a>

以下程式碼範例顯示如何使用 `DeleteService`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DeleteServiceRequest;
import software.amazon.awssdk.services.ecs.model.EcsException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class DeleteService {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterName> <serviceArn>\s

                Where:
                  clusterName - The name of the ECS cluster.
                  serviceArn - The ARN of the ECS service.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        String serviceArn = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        deleteSpecificService(ecsClient, clusterName, serviceArn);
        ecsClient.close();
    }

    public static void deleteSpecificService(EcsClient ecsClient, String clusterName, String serviceArn) {
        try {
            DeleteServiceRequest serviceRequest = DeleteServiceRequest.builder()
                    .cluster(clusterName)
                    .service(serviceArn)
                    .build();

            ecsClient.deleteService(serviceRequest);
            System.out.println("The Service was successfully deleted");

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [DeleteService](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/DeleteService)。

### `DescribeClusters`
<a name="ecs_DescribeClusters_java_2_topic"></a>

以下程式碼範例顯示如何使用 `DescribeClusters`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DescribeClustersRequest;
import software.amazon.awssdk.services.ecs.model.DescribeClustersResponse;
import software.amazon.awssdk.services.ecs.model.Cluster;
import software.amazon.awssdk.services.ecs.model.EcsException;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DescribeClusters {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterArn> \s

                Where:
                  clusterArn - The ARN of the ECS cluster to describe.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterArn = args[0];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        descCluster(ecsClient, clusterArn);
    }

    public static void descCluster(EcsClient ecsClient, String clusterArn) {
        try {
            DescribeClustersRequest clustersRequest = DescribeClustersRequest.builder()
                    .clusters(clusterArn)
                    .build();

            DescribeClustersResponse response = ecsClient.describeClusters(clustersRequest);
            List<Cluster> clusters = response.clusters();
            for (Cluster cluster : clusters) {
                System.out.println("The cluster name is " + cluster.clusterName());
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [DescribeClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/DescribeClusters)。

### `DescribeTasks`
<a name="ecs_DescribeTasks_java_2_topic"></a>

以下程式碼範例顯示如何使用 `DescribeTasks`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DescribeTasksRequest;
import software.amazon.awssdk.services.ecs.model.DescribeTasksResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.Task;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class ListTaskDefinitions {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterArn> <taskId>\s

                Where:
                  clusterArn - The ARN of an ECS cluster.
                  taskId - The task Id value.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterArn = args[0];
        String taskId = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        getAllTasks(ecsClient, clusterArn, taskId);
        ecsClient.close();
    }

    public static void getAllTasks(EcsClient ecsClient, String clusterArn, String taskId) {
        try {
            DescribeTasksRequest tasksRequest = DescribeTasksRequest.builder()
                    .cluster(clusterArn)
                    .tasks(taskId)
                    .build();

            DescribeTasksResponse response = ecsClient.describeTasks(tasksRequest);
            List<Task> tasks = response.tasks();
            for (Task task : tasks) {
                System.out.println("The task ARN is " + task.taskDefinitionArn());
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [DescribeTasks](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/DescribeTasks)。

### `ListClusters`
<a name="ecs_ListClusters_java_2_topic"></a>

以下程式碼範例顯示如何使用 `ListClusters`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.ListClustersResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class ListClusters {
    public static void main(String[] args) {
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        listAllClusters(ecsClient);
        ecsClient.close();
    }

    public static void listAllClusters(EcsClient ecsClient) {
        try {
            ListClustersResponse response = ecsClient.listClusters();
            List<String> clusters = response.clusterArns();
            for (String cluster : clusters) {
                System.out.println("The cluster arn is " + cluster);
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [ListClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/ListClusters)。

### `UpdateService`
<a name="ecs_UpdateService_java_2_topic"></a>

以下程式碼範例顯示如何使用 `UpdateService`。

**SDK for Java 2.x**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中設定和執行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.UpdateServiceRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class UpdateService {

    public static void main(String[] args) {

        final String usage = """

                Usage:
                   <clusterName> <serviceArn>\s

                Where:
                  clusterName - The cluster name.
                  serviceArn - The service ARN value.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        String serviceArn = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        updateSpecificService(ecsClient, clusterName, serviceArn);
        ecsClient.close();
    }

    public static void updateSpecificService(EcsClient ecsClient, String clusterName, String serviceArn) {
        try {
            UpdateServiceRequest serviceRequest = UpdateServiceRequest.builder()
                    .cluster(clusterName)
                    .service(serviceArn)
                    .desiredCount(0)
                    .build();

            ecsClient.updateService(serviceRequest);
            System.out.println("The service was modified");

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS SDK for Java 2.x API 參考》**中的 [UpdateService](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/UpdateService)。