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# 获取 ACME 外部账户绑定凭证
<a name="sdk-acme-get-eab-credentials"></a>

以下示例演示了如何使用 [GetAcmeExternalAccountBindingCredentials](https://docs.amazonaws.cn/acm/latest/APIReference/API_GetAcmeExternalAccountBindingCredentials.html) 函数。

```
package com.amazonaws.samples;

import com.amazonaws.services.certificatemanager.AWSCertificateManagerClientBuilder;
import com.amazonaws.services.certificatemanager.AWSCertificateManager;
import com.amazonaws.services.certificatemanager.model.GetAcmeExternalAccountBindingCredentialsRequest;
import com.amazonaws.services.certificatemanager.model.GetAcmeExternalAccountBindingCredentialsResult;

public class AWSCertificateManagerSample {

    public static void main(String[] args) {

        AWSCertificateManager client = AWSCertificateManagerClientBuilder.defaultClient();

        // Create the request.
        GetAcmeExternalAccountBindingCredentialsRequest req = new GetAcmeExternalAccountBindingCredentialsRequest()
            .withAcmeExternalAccountBindingArn("arn:aws:acm:us-east-1:123456789012:acme-endpoint/ep-example/acme-external-account-binding/eab-example");

        // Get the credentials.
        GetAcmeExternalAccountBindingCredentialsResult result = client.getAcmeExternalAccountBindingCredentials(req);

        // Retrieve the key ID and MAC key from the response.
        System.out.println("KeyId: " + result.getKeyId());
        System.out.println("MacKey: " + result.getMacKey());
    }
}
```