java Amazon cognito:未找到标识
我正在开发认证的项目。我正在尝试使用下面的代码获取凭据。但它给了我以下的错误
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 安卓.os.AsyncTask$2.call(AsyncTask.java:292)
这是我的代码：MainActivity。爪哇
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);
}
}}
认证。爪哇
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;
}
}}
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
# 1 楼答案
（1）在应用程序中，您不需要调用GetCredentialsForIdentity，CredentialsProvider会为您完成所有这些。（并确保传入正确的参数）
>；您可以通过呼叫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）在认证中。java，刷新，你好像在使用硬编码令牌？这可能已经过期了，你应该确保买新的。（如果你只是测试应用程序端，确保你硬编码了一个新的）
（3）在认证中。java，刷新，看起来你在用空令牌调用update
（4）还要确保你正在使用的硬编码身份的代币。（同样，只有在进行测试时才应该硬编码）
# 2 楼答案
当使用开发人员身份验证标识时，调用GetCredentialsForIdentity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，你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