我正在尝试使用microsoft graph访问令牌对outlook邮箱（用于从应用程序发送邮件）进行现代身份验证。我成功地从下面的代码中获取了访问令牌：

public class AuthTokenAccess {

public AuthTokenAccess() {}

public static String getAccessToken(String tenantId, String clientId, String clientSecret, String scope)
         {
    String endpoint = String.format("https://login.microsoftonline.com/%s/oauth2/token", tenantId);
    String postBody = String.format("grant_type=client_credentials&client_id=%s&client_secret=%s&resource=%s&scope=%s",
            clientId, clientSecret, "https://management.azure.com/", scope);
    String accessToken = null;
    try{
        HttpURLConnection conn = (HttpURLConnection) new URL(endpoint).openConnection();
    
    
        conn.setRequestMethod("POST");
    
    conn.addRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setDoOutput(true);
    conn.getOutputStream().write(postBody.getBytes());
    conn.connect();
    JsonFactory factory = new JsonFactory();
    JsonParser parser = factory.createParser(conn.getInputStream());
    //String accessToken = null;
    while (parser.nextToken() != JsonToken.END_OBJECT) {
        String name = parser.getCurrentName();
        if ("access_token".equals(name)) {
            parser.nextToken();
            accessToken = parser.getText();
        }
    }
    }catch(Exception e) {
        
        
    }
    return accessToken;
}

获取访问令牌后，我将此消息发送到ExchangeService：

public ExchangeService getExchangeServiceObj(String emailId, String token, String emailServerURI) throws URISyntaxException {

    ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
        
        if(service != null) {
            service.getHttpHeaders().put("Authorization", "Bearer " + token);
            service.getHttpHeaders().put("X-AnchorMailbox", emailId);
            service.setUrl(new URI(emailServerURI));   //https://outlook.office365.com/EWS/Exchange.asmx
        }
    
    LOGGER.debug("getExchangeServiceObj() {}.", "ends");
    return service;
}

在这里，我获得了ExchangeService对象，但当我尝试发送邮件时microsoft.exchange.webservices.data.core.service.item.EmailMessage.sendAndSaveCopy（）抛出异常

public void sendMail(String toMail, String ccMail, String subject, String body, String pathOfFileToAttach) {

        ExchangeService emailService = getExchangeServiceObj(
                ResourceUtils.getPropertyValue("email_user"), 
                token, 
                ResourceUtils.getPropertyValue("ews_server"));

        if(!StringUtils.hasText(toMail)) { 
            toMail = ccMail;
        }
        EmailMessage emessage = new EmailMessage(emailService);
        
        emessage.setSubject(subject);
        String strBodyMessage = body;
        strBodyMessage = strBodyMessage + "<br /><br />";
        LOGGER.info("Body: {} ", body);
        MessageBody msg = new MessageBody(BodyType.HTML, strBodyMessage);
        emessage.setBody(msg);
        
        emessage.sendAndSaveCopy();
        LOGGER.info("Email send {}", "sucessfully");
    } catch(Exception e) {
        LOGGER.error(Constants.ERROR_STACK_TRACE, e);
        throw new CommonException(e);
    }
}

尝试使用以下内窥镜：”https://outlook.office.com/EWS.AccessAsUser.All“、”https://graph.microsoft.com/.default“
下面是我使用上面的代码获得的访问令牌：
{“aud”：“https://management.azure.com/“，“iss”：“https://sts.windows.net/3863b7d0-213d-40f3-a4d0-6cd90452245a/“，“iat”：1628068305，“nbf”：1628068305，“失效日期”：1628072205，“航空公司”：“E2 ZgYEjcvsaipUV 1 wxwxrne/9 F4 XAAA ="，“应用程序ID”：“055 eb 578 -4716-4901- 861 b-92 f2469 dac 9 c”，“附录”：“1”、“idp”：“网址为：“33688 CEE-E16 E-4D 11 - 8AEO-A804805 EA 007”，“相对湿度”：“0.AUYA0LdjOD0h80Ck0GzBFIkWni1XgUWRwFJhhuS8kadrJxGAAA."，“子”：“编号33688 CEE-E16 E-4D 11 - 8Ae 0-A804805 EA 007”，“每日三次”：“3863 b7 d 0 - 213 d-40 f3-a4 d 0 - 6cd 90452245 a”，“通用技术接口”：“nZUVod_e3 EuO_T-Ter-_AQ”，“版本”：“1.0”、“xms_tcdt”：小行星1626687774
正如你所看到的，作用域不包括在令牌中。2在获取令牌时，我需要传递任何其他的东西吗？
Azure活动目录设置：
1.已注册的应用程序2.创建客户端密码3.添加重定向URL x1c 0d1x
1.已添加权限

有没有人可以请帮助我在这里，我正在做的错误或其他任何其他方式来使它工作。谢谢