java使用用户凭据通过Microsoft Graph API上的控制台应用程序发送电子邮件

2 月 Questions & Answers 768

我修改了Java console application，允许用户使用用户名/密码登录，以代表他们调用Microsoft Graph API，而不是检索基本用户数据来发送电子邮件

然而，虽然最初的示例运行良好（我收到用户电子邮件，请参阅下面的注释代码），但我在发送电子邮件时收到此错误：

Graph service exception Error code: NoPermissionsInAccessToken
Error message: The token contains no permissions, or permissions can not be understood.

对于此操作，请发送电子邮件。发送范围需要在Azure portal中定义，并且应足以在未经管理员同意的情况下使用。

我使用以下Microsoft依赖项：

<dependency>
    <groupId>com.microsoft.azure</groupId>
    <artifactId>msal4j</artifactId>
    <version>1.6.1</version>
</dependency>
<dependency>
    <groupId>com.microsoft.graph</groupId>
    <artifactId>microsoft-graph</artifactId>
    <version>1.6.0</version>
</dependency>

这是实际代码：

public class MicrosoftGraphMailer {

    private final static String CLIENT_APP_ID = "{real-client-app-id}";
    private final static String AUTHORITY = "https://login.microsoftonline.com/{real-tenant-id}/";

    public static void main(String[] args) throws Exception {

        String user = "{real-user}";
        String password = "{real-password}";

        String token = getUserPasswordAccessToken(user, password).accessToken();
        System.out.println(token);

        SimpleAuthProvider authProvider = new SimpleAuthProvider(token);
        IGraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider(authProvider).buildClient();

        Message message = new Message();
        message.subject = "My subject";

        ItemBody body = new ItemBody();
        body.contentType = BodyType.HTML;
        body.content = "<h1>My HTML body</h1>";
        message.body = body;

        List<Recipient> toRecipientList = new LinkedList<>();
        Recipient toRecipient = new Recipient();
        EmailAddress emailAddress = new EmailAddress();
        emailAddress.address = "{real-recipient}";
        toRecipient.emailAddress = emailAddress;
        toRecipientList.add(toRecipient);
        message.toRecipients = toRecipientList;

        graphClient.me()
                .sendMail(message, false)
                .buildRequest()
                .post();

/*
         String mail = graphClient.me()
                .buildRequest()
                .get().mail;

         System.out.println(mail);
*/
    }

    private static IAuthenticationResult getUserPasswordAccessToken(String user, String password) throws Exception {

        PublicClientApplication app = PublicClientApplication.builder(CLIENT_APP_ID).authority(AUTHORITY).build();

        Set<String> scopes = new HashSet<>(Arrays.asList("Mail.Send"));

        UserNamePasswordParameters userNamePasswordParam = UserNamePasswordParameters.builder(
                scopes, user, password.toCharArray())
                .build();

        return app.acquireToken(userNamePasswordParam).get();
    }

    private static class SimpleAuthProvider implements IAuthenticationProvider {

        private String accessToken = null;

        public SimpleAuthProvider(String accessToken) {
            this.accessToken = accessToken;
        }

        @Override
        public void authenticateRequest(IHttpRequest request) {
            request.addHeader("Authorization", "Bearer " + accessToken);
        }
    }
}

基本上我需要控制台守护程序的应用程序发送电子邮件代表我没有任何用户交互。凭据将存储在应用程序外部。我不需要权限来代表任意用户发送电子邮件

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java使用用户凭据通过Microsoft Graph API上的控制台应用程序发送电子邮件

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