Java Amazon cognito:未找到标识

我正在进行开发人员身份验证项目。我正在尝试使用下面的代码获取凭据。但它给了我以下错误

我已将IdentityId和令牌从服务器代码手动粘贴到此代码中：

    Caused by: com.amazonaws.services.cognitoidentity.model.ResourceNotFoundException: Identity 'ap-northeast-1:fe81cd76-e9d4-4416-99ea-b684b78743c8' not found. (Service: AmazonCognitoIdentity; Status Code: 400; Error Code: ResourceNotFoundException; Request ID: 2ac65fe8-d41a-11e5-8674-677eefdb5331)
                                                 at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:709)
                                                 at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:385)
                                                 at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:196)
                                                 at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.invoke(AmazonCognitoIdentityClient.java:533)
                                                 at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.getCredentialsForIdentity(AmazonCognitoIdentityClient.java:406)
                                                 at com.example.sandesh.aws.MainActivity$network.doInBackground(MainActivity.java:101)
                                                 at com.example.sandesh.aws.MainActivity$network.doInBackground(MainActivity.java:52)
                                                 at android.os.AsyncTask$2.call(AsyncTask.java:292)

这是我的代码：MainActivity.java

    public class MainActivity extends AppCompatActivity {

Button button;

protected static CognitoCachingCredentialsProvider credentialsProvider = null;
private GetCredentialsForIdentityResult credentialsForIdentityResult;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    button = (Button)findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            network net = new network();
            net.execute();
        }
    });
}
public class network extends AsyncTask<Void,Void,String>{
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected String doInBackground(Void... params) {

        Authentication developerProvider = new Authentication(
                null,
                "ap-northeast-1:XXXXXXXXXXXXXXXXXX",
                Regions.AP_NORTHEAST_1);

        CognitoCachingCredentialsProvider credentialsProvider = new CognitoCachingCredentialsProvider(
                getApplicationContext(),
                developerProvider,
                Regions.AP_NORTHEAST_1);


        HashMap<String, String> loginsMap = new HashMap<String, String>();
        loginsMap.put(developerProvider.getProviderName(), "7386372772");
        credentialsProvider.setLogins(loginsMap);
        credentialsProvider.refresh();
        GetCredentialsForIdentityRequest credentialsForIdentityRequest = new GetCredentialsForIdentityRequest();

        credentialsForIdentityRequest.setIdentityId(developerProvider.getIdentityId());
        credentialsForIdentityRequest.setLogins(loginsMap);
        AmazonCognitoIdentityClient cognitoIdentityClient = new AmazonCognitoIdentityClient(credentialsProvider);
        credentialsForIdentityResult = cognitoIdentityClient.getCredentialsForIdentity(credentialsForIdentityRequest);

        Log.d("access_key",credentialsForIdentityResult.getCredentials().getAccessKeyId());
        return credentialsForIdentityResult.getCredentials().getAccessKeyId();
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
    }
}}

---

我曾在PHP中尝试过它，在那里我执行了getOpenIdTokenForDeveloperIdentity、stsClient和AssumerRoleWithWebIdentity，以获得凭证，效果非常好。先谢谢你

当使用开发人员身份验证身份时，调用的登录映射应该使用“cognito identity.amazonaws.com”作为密钥，而不是开发人员提供者名称

另外，您不应该自己调用这个方法，SDK会处理这个问题

更新：

调用getCredentialsForIdentity时，在登录映射中，当键为“cognito identity.amazonaws.com”时，该值应该是调用GetOpenIdTokenForDeveloperIdentity后从后端获得的令牌。您不需要获取用于执行AWS操作的凭据，只需使用此凭据提供程序初始化AWS服务客户端，就可以了。

（1）在您的应用程序中，您不需要调用GetCredentialsForIdentity，凭据提供程序会为您完成所有这些操作。（并确保传入正确的参数）。
-->您可以通过调用另一个需要凭据的服务（例如S3）来测试您是否正在获取凭据
-->另一个选项是调用凭据提供程序上的getCredentials（），并验证是否未引发异常

（2） 在Authentication.java中，刷新时，您似乎正在使用硬编码令牌？这可能已过期，您应该确保获得新的。（如果您只是测试应用程序端，请确保您硬编码了一个新的）

（3） 在Authentication.java的refresh中，您似乎正在使用空令牌调用update

---

（4） 还要确保您正在使用的硬编码身份的令牌。（同样，只有在进行测试时才应该硬编码）。

知道它为什么会显示错误吗？手动调用GetCredentialsForIdentity的用例是什么？凭据提供程序将为您执行此操作。实际上，您所做的refresh（）调用已经完成了。您应该能够将凭据提供程序传递到所需的客户端。这是失败的调用吗？您是说在这一行cognitoIdentityClient.GetCredentialsForIdentity（credentialsForIdentityRequest）中调用GetCredentialsForIdentity；如果是，那么如何从上面的代码中从CognitoIdentity客户端检索这些凭据？上面的loginmap应该类似于loginsMap.put（“cognito identity.amazonaws.com”，“7386372772”）；正确的？同样在AwsAbstractCognitodeveloperEntityProvider类中，我是否需要将我的开发人员名称“login.bluspinch.app”？正如您所建议的，我已经尝试提供cognito-identity.amazonaws.com作为登录的密钥。说您提供的令牌不正确是错误的。我尝试在我创建的cognito中使用providername。并没有尝试打印凭证，而是将凭证传递给s3客户端，并尝试将文件上载到s3。令人惊讶的是，它成功了。文件已上载。我真的不知道该怎么理解这件事。请帮助您是否从后端提供了正确的令牌（通过调用GetOpenIdTokenForDeveloperIdentity获得）？另外，如果您有requestId，我可以深入挖掘。对于它工作时的情况，您能否检查它是否创建了经过身份验证或未经身份验证的身份？您可以检查这是Amazon Cognito控制台。我确信我提供了正确的令牌。它正在创建经过身份验证的身份。我在AWS控制台上查过了

   public class Authentication extends AWSAbstractCognitoDeveloperIdentityProvider {


private static final String PROVIDERNAME = "login.blupinch.app";
public String response = " ";
String line = " ";
public Authentication(String accountId, String identityPoolId, Regions region) {
    super(accountId, identityPoolId, region);
}

@Override
public String getProviderName() {
    return PROVIDERNAME;
}
public String refresh() {

    setToken(null);

    if (getProviderName() != null &&
            !this.loginsMap.isEmpty() &&
            this.loginsMap.containsKey(getProviderName())) {

        update(identityId, token);
        return "eyJraWQiOiJhcC1ub3J0aGVhc3QtMTEiLCJ0eXAiOiJKV1MiLCJhbGciOiJSUzUxMiJ9.eyJzdWIiOiJhcC1ub3J0aGVhc3QtMTpmZTgxY2Q3Ni1lOWQ0LTQ0MTYtOTllYS1iNjg0Yjc4NzQzYzgiLCJhdWQiOiJhcC1ub3J0aGVhc3QtMTphODcxZmE1Zi0yM2EyLTQ4MGQtYmFhNi1iNGVkMzE0MzcyNDQilCJhbXIiOlsiYXV0aGVudGljYXRlZCIsImxvZ2luLmJsdXBpbmNoLmFwcCIsImxvZ2luLmJsdXBpbmNoLmFwcDphcC1ub3J0aGVhc3QtMTphODcxZmE1Zi0yM2EyLTQ4MGQtYmFhNi1iNGVkMzE0MzcyNDQ6NzM4NjM3Mjg3MiJdLCJpc3MiOiJodHRwczovL2NvZ25pdG8taWRlbnRpdHkuYW1hem9uYXdzLmNvbSIsImV4cCI6MTQ1NTU5NTM5NywiaWF0IjoxNDU1NTU5Mzk3fQ.fHHH6aeCn5EaJGxGD6tw7bWyQpPHuYcW8SZLRGVn-3cbamJrWEPmUnNvcLJ-D6nL8AvMQy7-s1LGQ5MNaiuIH7QF6W8aWt2OMALmA_Y7eqpGQ6iQXVma_jTZSpiyBe2cPNggWgeslPtFxomwE90vW0rzS1sY3D5Y3UbnrIHNdiPKIzzP9JaQo1IsTJMKEpQM-jzWP6stV1radDuIzWQroBVQseOQSD-MXV_-cgWWSx0eQmtFbjJW6RP_nACgh0uTbGmMuOi2iKXKQAdGlYWO-PHlShbiHT-WLQoZNWuh95Hh9dMldv-mNdnYSblqYyqptLA3kObioI08XXkTqwaaAw";


    } else {
        this.getIdentityId();
        return null;
    }
}
public String getIdentityId() {

    identityId = "ap-northeast-1:XXXXXXXXXXXXXXXXXXXXXXXX";

    if (identityId == null) {


        if (getProviderName() != null && !this.loginsMap.isEmpty()
                && this.loginsMap.containsKey(getProviderName())) {

            update(identityId, token);
            return "ap-northeast-1:XXXXXXXXXXXXXXXXXXXX";

        } else {
            return super.getIdentityId();
        }

    } else {
        return identityId;
    }

}}