通过Microsoft Graph SDK for Java访问扩展属性

import com.microsoft.graph.models.*;
import com.microsoft.graph.requests.*;
import com.microsoft.aad.msal4j.*;

import java.util.Collections;
import java.util.concurrent.CompletableFuture;

public class GraphExample {
    public static void main(String[] args) throws Exception {
        // 获取访问令牌
        IAuthenticationResult result = acquireToken().join();
        String accessToken = result.getAccessToken();

        // 创建 Graph 客户端
        GraphServiceClient graphClient = GraphServiceClient.builder()
                .authenticationProvider(accessToken -> new DelegateAuthenticationProvider(accessToken))
                .buildClient();

        // 获取用户信息
        User user = graphClient.me().buildRequest().get();

        // 获取扩展属性
        String schemaId = "your-schema-id";
        String propertyId = "your-property-id";
        UserExtension userExtension = graphClient.me().extensions(schemaId, propertyId).buildRequest().get();

        System.out.println("User Extension: " + userExtension.additionalData());
    }

    private static CompletableFuture<IAuthenticationResult> acquireToken() throws Exception {
        PublicClientApplication app = PublicClientApplication.builder("your-client-id")
                .b2cAuthority("https://login.microsoftonline.com/tfp/your-tenant-id/b2c_1_your-signupsignin-policy")
                .build();

        AuthorizationCodeParameters parameters = AuthorizationCodeParameters.builder(
                new URI("your-auth-code-uri"),
                new ClientSecret("your-client-secret"))
                .scopes(Collections.singleton("https://graph.microsoft.com/.default"))
                .build();

        return app.acquireToken(parameters);
    }
}