MS Graph 創建團隊遇到錯誤請求“在線會議不能是 null”。

Question

我正在嘗試使用 HttpPost 請求通過 web 應用程序創建會議，但收到 400 BadRequest 錯誤消息“onlinemeeting cannot be null”。

HttpPost httpPost = new HttpPost("https://graph.microsoft.com/v1.0/me/onlineMeetings");
        
LocalDateTime meetingTime = java.time.LocalDateTime.now();
        
try {
    JSONObject bodyJson = new JSONObject();
        
    bodyJson.put("meetingType", "meetNow"); //tried with and without this and still didn't work
    bodyJson.put("startDateTime", meetingTime.toString());
    bodyJson.put("subject", "TeamsMeeting");
    bodyJson.put("participants", new JSONObject().put("organizer", 
            new JSONObject().put("identity", 
                    new JSONObject().put("user", 
                            new JSONObject().put("id", userId)))));
    
    StringEntity entity = new StringEntity(bodyJson.toString());
    entity.setContentType("application/json");
    httpPost.setEntity(entity);
            
    BasicHeader authHeader = new BasicHeader("Authorization", "Bearer " + teamsToken);
    httpPost.addHeader(authHeader);
    httpPost.addHeader("Content-Type", "application/json");
        
            
    HttpResponse postResponse = httpClient.execute(httpPost);
    String responseContent = EntityUtils.toString(postResponse.getEntity(), StandardCharsets.UTF_8.name());
...

我在執行發布請求時得到這個：

{
    "error": {
        "code":"BadRequest",
        "message":"onlinemeeting cannot be null.",
        "innerError": {
            "date":"2020-07-10T19:09:48",
            "request-id":"cfad7871-6595-4efb-a262-13ac42f0e599"
        }
    }
}

當我使用 postman 時它可以工作，但通過我的 web 應用程序點擊它時我不能。 有什么想法可能導致這種情況嗎？ Java代碼有問題嗎？ 任何幫助表示贊賞。

Answer 1

如果您使用用戶令牌創建在線會議，MS Graph 中有帶有 Java 的OnlineMeeting 文檔。

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

OnlineMeeting onlineMeeting = new OnlineMeeting();
onlineMeeting.startDateTime = "2019-07-12T21:30:34.2444915+00:00";
onlineMeeting.endDateTime = "2019-07-12T22:00:34.2464912+00:00";
onlineMeeting.subject = "User Token Meeting";

graphClient.me().onlineMeetings()
    .buildRequest()
    .post(onlineMeeting);

如果您使用應用程序令牌創建在線會議，請嘗試以下代碼：

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

OnlineMeeting onlineMeeting = new OnlineMeeting();
onlineMeeting.startDateTime = "2019-07-12T21:30:34.2444915+00:00";
onlineMeeting.endDateTime = "2019-07-12T22:00:34.2464912+00:00";
onlineMeeting.subject = "Application Token Meeting";

MeetingParticipants meetingParticipants = new MeetingParticipants();
meetingParticipants.organizer.identity.user.id = "550fae72-d251-43ec-868c-373732c2704f";
onlineMeeting.participants = meetingParticipants;


graphClient.me().onlineMeetings()
.buildRequest()
.post(onlineMeeting);

有關 Class OnlineMeeting的更多詳細信息，請參閱此處。

Answer 2

使用下面的代碼它對我有用：

        OkHttpClient client = new OkHttpClient();
        MediaType mediaType = MediaType.parse("application/json");
        RequestBody body = RequestBody.create(mediaType, json);
        Request request = new Request.Builder()
          .url(authHelper.getMsGraphEndpointHost() + url)
          .post(body)
          .addHeader("content-type", "application/json")
          .addHeader("authorization", accessToken)
          .addHeader("cache-control", "no-cache")
          .build();

        Response responseOk = client.newCall(request).execute();

Answer 3

問題最終出在 startDateTime 上，因為我認為它不是所需的確切格式。 錯誤消息並未表明它是那個值，但是一旦從 json 主體中刪除它，它就可以工作而無需使用 OnlineMeeting object。