文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。

本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# 与 AWS SDK `DescribeApplicationState` 配合使用
<a name="migration-hub_example_migration-hub_DescribeApplicationState_section"></a>

以下代码示例演示了如何使用 `DescribeApplicationState`。

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#### [ Java ]

**适用于 Java 的 SDK 2.x**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/migrationhub#code-examples)中查找完整示例，了解如何进行设置和运行。

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.migrationhub.MigrationHubClient;
import software.amazon.awssdk.services.migrationhub.model.DescribeApplicationStateRequest;
import software.amazon.awssdk.services.migrationhub.model.DescribeApplicationStateResponse;
import software.amazon.awssdk.services.migrationhub.model.MigrationHubException;

/**
 * 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 DescribeAppState {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    DescribeAppState <appId>\s

                Where:
                    appId -  the application id value.\s
                """;

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

        String appId = args[0];
        Region region = Region.US_WEST_2;
        MigrationHubClient migrationClient = MigrationHubClient.builder()
                .region(region)
                .build();

        describeApplicationState(migrationClient, appId);
        migrationClient.close();
    }

    public static void describeApplicationState(MigrationHubClient migrationClient, String appId) {
        try {
            DescribeApplicationStateRequest applicationStateRequest = DescribeApplicationStateRequest.builder()
                    .applicationId(appId)
                    .build();

            DescribeApplicationStateResponse applicationStateResponse = migrationClient
                    .describeApplicationState(applicationStateRequest);
            System.out.println("The application status is " + applicationStateResponse.applicationStatusAsString());

        } catch (MigrationHubException e) {
            System.out.println(e.getMessage());
            System.exit(1);
        }
    }
}
```
+  有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[DescribeApplicationState](https://docs.aws.amazon.com/goto/SdkForJavaV2/migration-hub-2017-05-31/DescribeApplicationState)*中的。

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