Java 无法使用访问令牌访问Google日历事件

我已经在url中创建了一个应用程序（选择“凭据”-->“创建凭据”-->“OAuth客户端ID”），并给出了重定向url。 =>我获得了客户机id和客户机机密，然后使用这些客户机id和客户机机密编写了一个小型springboot应用程序

=>运行该项目并将其重定向到我配置的url（localhost:8080/googleOauth/user）。 =>我在控制器中获得了带有accessTokenValue的主体对象，通过使用此accessToken，我试图调用calendar api来获取事件列表，但得到错误

代码：

@RequestMapping(value = "/user")
public Principal user(Principal principal) {
    System.out.println("*******************************principal *\n " + principal);
    System.out.println(principal.getName());
    
    if (principal != null) {
        
        OAuth2Authentication oAuth2Authentication = (OAuth2Authentication) principal;
        OAuth2AuthenticationDetails oauthDetls = ((OAuth2AuthenticationDetails) oAuth2Authentication.getDetails());
        System.out.println("Bearer Token => "+oauthDetls.getTokenType()+" "+oauthDetls.getTokenValue());
        

    HttpTransport httpTransport = new NetHttpTransport();
    JsonFactory jsonFactory = new JacksonFactory();
    GoogleCredential credentials = new GoogleCredential.Builder()
           .setTransport(httpTransport)
           .setJsonFactory(jsonFactory)
           .setClientSecrets("1048632525615-ib80u833vjpou4dglknsa007kpo4gbqs.apps.googleusercontent.com", "ZH0ln3VtYNISWBiSZrOmd21u")
           .build();
    credentials.setAccessToken(oauthDetls.getTokenValue());
               

    Calendar service = new Calendar.Builder(GoogleNetHttpTransport.newTrustedTransport(), new JacksonFactory(), 
            credentials)
            .build();
    // Retrieve an event
    Events event = service.events().list("primary").execute();
    System.out.println("Events Summary => "+event.getSummary());

    
    }
    
    return principal;
}

{
   "error":{
      "code":403,
      "message":"Request had insufficient authentication scopes.",
      "errors":[
         {
            "message":"Insufficient Permission",
            "domain":"global",
            "reason":"insufficientPermissions"
         }
      ],
      "status":"PERMISSION_DENIED"
   }
}

错误：

@RequestMapping(value = "/user")
public Principal user(Principal principal) {
    System.out.println("*******************************principal *\n " + principal);
    System.out.println(principal.getName());
    
    if (principal != null) {
        
        OAuth2Authentication oAuth2Authentication = (OAuth2Authentication) principal;
        OAuth2AuthenticationDetails oauthDetls = ((OAuth2AuthenticationDetails) oAuth2Authentication.getDetails());
        System.out.println("Bearer Token => "+oauthDetls.getTokenType()+" "+oauthDetls.getTokenValue());
        

    HttpTransport httpTransport = new NetHttpTransport();
    JsonFactory jsonFactory = new JacksonFactory();
    GoogleCredential credentials = new GoogleCredential.Builder()
           .setTransport(httpTransport)
           .setJsonFactory(jsonFactory)
           .setClientSecrets("1048632525615-ib80u833vjpou4dglknsa007kpo4gbqs.apps.googleusercontent.com", "ZH0ln3VtYNISWBiSZrOmd21u")
           .build();
    credentials.setAccessToken(oauthDetls.getTokenValue());
               

    Calendar service = new Calendar.Builder(GoogleNetHttpTransport.newTrustedTransport(), new JacksonFactory(), 
            credentials)
            .build();
    // Retrieve an event
    Events event = service.events().list("primary").execute();
    System.out.println("Events Summary => "+event.getSummary());

    
    }
    
    return principal;
}

{
   "error":{
      "code":403,
      "message":"Request had insufficient authentication scopes.",
      "errors":[
         {
            "message":"Insufficient Permission",
            "domain":"global",
            "reason":"insufficientPermissions"
         }
      ],
      "status":"PERMISSION_DENIED"
   }
}

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请告诉我哪里错了。

我的建议是你仔细检查一下。你走在正确的轨道上，因为你确实需要凭证。但是，您缺少授权过程中的一个重要部分，即您请求访问的作用域，并且对于您为其创建凭据的项目，也必须启用这些作用域

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以下是有关的指南。

您授权的范围如何？您授权应用程序使用哪些作用域？我没有授权任何具有任何作用域的应用程序，如果需要，如何使用rest api授权？任何例子都会对我有所帮助。