適用於 Java 2.x SDK的 Amazon Cognito Identity 範例 - AWS SDK 程式碼範例
動作

文件範例儲存庫中有更多 AWS SDK可用的範例。 AWS SDK GitHub

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。

適用於 Java 2.x SDK的 Amazon Cognito Identity 範例

下列程式碼範例說明如何 AWS SDK for Java 2.x 搭配 Amazon Cognito Identity 使用 來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。雖然動作會示範如何呼叫個別服務函數，但您可以在其相關案例中查看內容中的動作。

每個範例都包含完整原始程式碼的連結，您可以在其中找到如何在內容中設定和執行程式碼的指示。

主題

動作

下列程式碼範例示範如何使用 CreateIdentityPool。

SDK 適用於 Java 2.x
注意

還有更多 。 GitHub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.cognitoidentity.CognitoIdentityClient;
import software.amazon.awssdk.services.cognitoidentity.model.CreateIdentityPoolRequest;
import software.amazon.awssdk.services.cognitoidentity.model.CreateIdentityPoolResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;

/**
 * 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 CreateIdentityPool {
    public static void main(String[] args) {
        final String usage = """
                Usage:
                    <identityPoolName>\s

                Where:
                    identityPoolName - The name to give your identity pool.
                """;

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

        String identityPoolName = args[0];
        CognitoIdentityClient cognitoClient = CognitoIdentityClient.builder()
                .region(Region.US_EAST_1)
                .build();

        String identityPoolId = createIdPool(cognitoClient, identityPoolName);
        System.out.println("Unity pool ID " + identityPoolId);
        cognitoClient.close();
    }

    public static String createIdPool(CognitoIdentityClient cognitoClient, String identityPoolName) {
        try {
            CreateIdentityPoolRequest poolRequest = CreateIdentityPoolRequest.builder()
                    .allowUnauthenticatedIdentities(false)
                    .identityPoolName(identityPoolName)
                    .build();

            CreateIdentityPoolResponse response = cognitoClient.createIdentityPool(poolRequest);
            return response.identityPoolId();

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        return "";
    }
}

  • 如需API詳細資訊，請參閱 參考 CreateIdentityPool中的 。 AWS SDK for Java 2.x API

下列程式碼範例示範如何使用 DeleteIdentityPool。

SDK 適用於 Java 2.x
注意

還有更多 。 GitHub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.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.awscore.exception.AwsServiceException;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentity.CognitoIdentityClient;
import software.amazon.awssdk.services.cognitoidentity.model.DeleteIdentityPoolRequest;

/**
 * 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 DeleteIdentityPool {

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

                Usage:
                    <identityPoolId>\s

                Where:
                    identityPoolId - The Id value of your identity pool.
                """;

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

        String identityPoold = args[0];
        CognitoIdentityClient cognitoIdClient = CognitoIdentityClient.builder()
                .region(Region.US_EAST_1)
                .credentialsProvider(ProfileCredentialsProvider.create())
                .build();

        deleteIdPool(cognitoIdClient, identityPoold);
        cognitoIdClient.close();
    }

    public static void deleteIdPool(CognitoIdentityClient cognitoIdClient, String identityPoold) {
        try {

            DeleteIdentityPoolRequest identityPoolRequest = DeleteIdentityPoolRequest.builder()
                    .identityPoolId(identityPoold)
                    .build();

            cognitoIdClient.deleteIdentityPool(identityPoolRequest);
            System.out.println("Done");

        } catch (AwsServiceException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • 如需API詳細資訊，請參閱 參考 DeleteIdentityPool中的 。 AWS SDK for Java 2.x API

下列程式碼範例示範如何使用 GetCredentialsForIdentity。

SDK 適用於 Java 2.x
注意

還有更多 。 GitHub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.cognitoidentity.CognitoIdentityClient;
import software.amazon.awssdk.services.cognitoidentity.model.GetCredentialsForIdentityRequest;
import software.amazon.awssdk.services.cognitoidentity.model.GetCredentialsForIdentityResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;

/**
 * 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 GetIdentityCredentials {
    public static void main(String[] args) {

        final String usage = """

                Usage:
                    <identityId>\s

            Where:
                identityId - The Id of an existing identity in the format REGION:GUID.
            """;

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

        String identityId = args[0];
        CognitoIdentityClient cognitoClient = CognitoIdentityClient.builder()
                .region(Region.US_EAST_1)
                .build();

        getCredsForIdentity(cognitoClient, identityId);
        cognitoClient.close();
    }

    public static void getCredsForIdentity(CognitoIdentityClient cognitoClient, String identityId) {
        try {
            GetCredentialsForIdentityRequest getCredentialsForIdentityRequest = GetCredentialsForIdentityRequest
                    .builder()
                    .identityId(identityId)
                    .build();

            GetCredentialsForIdentityResponse response = cognitoClient
                    .getCredentialsForIdentity(getCredentialsForIdentityRequest);
            System.out.println(
                    "Identity ID " + response.identityId() + ", Access key ID " + response.credentials().accessKeyId());

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

下列程式碼範例示範如何使用 ListIdentityPools。

SDK 適用於 Java 2.x
注意

還有更多 。 GitHub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.cognitoidentity.CognitoIdentityClient;
import software.amazon.awssdk.services.cognitoidentity.model.ListIdentityPoolsRequest;
import software.amazon.awssdk.services.cognitoidentity.model.ListIdentityPoolsResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;

/**
 * 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 ListIdentityPools {
    public static void main(String[] args) {
        CognitoIdentityClient cognitoClient = CognitoIdentityClient.builder()
                .region(Region.US_EAST_1)
                .build();

        listIdPools(cognitoClient);
        cognitoClient.close();
    }

    public static void listIdPools(CognitoIdentityClient cognitoClient) {
        try {
            ListIdentityPoolsRequest poolsRequest = ListIdentityPoolsRequest.builder()
                    .maxResults(15)
                    .build();

            ListIdentityPoolsResponse response = cognitoClient.listIdentityPools(poolsRequest);
            response.identityPools().forEach(pool -> {
                System.out.println("Pool ID: " + pool.identityPoolId());
                System.out.println("Pool name: " + pool.identityPoolName());
            });

        } catch (CognitoIdentityProviderException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • 如需API詳細資訊，請參閱 參考 ListIdentityPools中的 。 AWS SDK for Java 2.x API