InterfaceAlibabaCloudCredentialsProvides AccessKeyId and AccessKeySecret to authorize a request, for accessing Alibaba Cloud services. The AK pair is used to sign requests.
notes/16-用户注册/alidy/java/api_sdk/aliyun-java-sdk-core/src/main/java/com/aliyuncs/auth/AlibabaCloudCredentials.java:31