java - 使用 Java 中的 Office 365 REST API 构建守护程序或服务应用程序

Question

我正在尝试构建批处理作业以访问 Office 365 Mail API。检查documentation (概念很清楚)，我找不到为 Java 编写的代码示例。我找到了 this但它依赖于 java pom 文件，但如果可能，我希望直接使用 REST API 或 Graphi API。

有人可以告诉我如何开始构建守护进程服务以在用户不登录的情况下访问 Office 365 REST API 吗？

更新

我有以下代码使用 AADL 库获取 token

String tenant="....";
        String authority = "https://login.windows.net/"+tenant+"/oauth2/authorize";
        ExecutorService service=null;
        service= Executors.newFixedThreadPool(1);

        try{

            AuthenticationContext authenticationContext= new AuthenticationContext(authority,false,service);
            String certFile="/mycert2.pfx";
            InputStream pkcs12Cert= new SharedFileInputStream(certFile);

            AsymmetricKeyCredential credential=AsymmetricKeyCredential.create("....",pkcs12Cert,"pass");


            Future<AuthenticationResult> future=authenticationContext.acquireToken("https://outlook.office365.com",credential,null);

            System.out.println("Token Received"+future.get().getAccessToken());
            String token = future.get().getAccessToken();

            HttpGet httpGet = new       HttpGet("https://graph.microsoft.com/v1.0/users");

            httpGet.setHeader("Authorization", "Bearer "+token);


            GraphServices graphServices = new GraphServices();
            ResponseEntity<String> responseEntity;


            //responseEntity = graphServices.getEmails(token); //Throws the same Unauthorized exception 

            HttpClient httpClient= HttpClients.createDefault();

            HttpResponse response=httpClient.execute(httpGet);
//response contains Unauthorized access 
            HttpEntity entity=response.getEntity();

        }
        catch (MalformedURLException e){
            e.printStackTrace();

        }
        catch (Exception e){
            e.printStackTrace();
        }


    }

这里是来自 http.execute 方法的未授权错误

HttpResponseProxy{HTTP/1.1 401 Unauthorized [Content-Type: application/json; charset=utf-8, Server: Microsoft-IIS/8.5, request-id: 49ca360f-ab4b-42d5-a4b0-9676e4244c21, client-request-id: 49ca360f-ab4b-42d5-a4b0-9676e4244c21, x-ms-ags-diagnostic: {"ServerInfo":{"DataCenter":"West US","Slice":"SliceA","ScaleUnit":"003","Host":"AGSFE_IN_8","ADSiteName":"WST"}}, X-Powered-By: ASP.NET, Date: Tue, 06 Sep 2016 20:43:24 GMT, Content-Length: 244] ResponseEntityProxy{[Content-Type: application/json; charset=utf-8,Content-Length: 244,Chunked: false]}}

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(token是类似这个的东西，只是为了安全改成了类似的东西)

Answer 1

此处的 Java 演练(尽管对于使用授权代码流的 Web 应用程序):https://dev.outlook.com/restapi/tutorial/java

还有这个使用客户端凭证流的示例:

https://github.com/jasonjoh/java-calendar-demo