Question

        HttpTransport netTransport = new NetHttpTransport();
        JsonFactory jsonFactory = new JacksonFactory();
        GoogleTokenResponse token;
        try {
            token = new GoogleAuthorizationCodeTokenRequest(
                    netTransport,
                    jsonFactory,
                    CLIENT_ID,
                    CLIENT_SECRET,
                    CODE,
                    REDIRECT).execute();

            GoogleCredential cd = new GoogleCredential().setAccessToken(token
                    .getAccessToken());

            Plus plus = Plus
                    .builder(new NetHttpTransport(), new JacksonFactory())
                    .setApplicationName(APP_NAME)
                        .setHttpRequestInitializer(cd).build();

            Person profile = plus.people().get("me").execute();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

大家好，我正在尝试从我的Google App Engine应用程序中获取Google +的一些用户信息，但我仍然坚持要放置/如何获取GoogleAuthorizationCodeTokenRequest的CODE参数。任何帮助是极大的赞赏。谢谢。

Answer 1

您可以从重定向网址获取de CODE。

HttpTransport httpTransport = new NetHttpTransport();
            JsonFactory jsonFactory = new JacksonFactory();

            GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET,
                    Arrays.asList(DriveScopes.DRIVE)).setAccessType("offline").setApprovalPrompt("auto").build();
            String url = flow.newAuthorizationUrl().setRedirectUri(REDIRECT_URI).build();
            res.sendRedirect(url);

Answer 2

我会尝试提高雷米泰科纳的答案。基本的oAuth授权流程是：

请求用户访问。您应用应将用户重定向到授权网址。在该页面，Google要求用户访问。
在用户授予访问权限后，他将被重定向到REDIRECT_URL。您可以选择最适合您的选项：
1. 您的应用已内置网络浏览器。使用urn:ietf:wg:oauth:2.0:oob:auto作为网址。当用户授予访问权限时，您的应用应该从网页标题中读取访问代码。
2. 您的应用为网络服务器。使用您的网络应用的网址。访问代码将是一个查询参数，您可以处理它
3. 您的应用没有上述功能。使用urn:ietf:wg:oauth:2.0:oob作为REDIRECT_URL。当用户授予访问权限时，他将被重定向到包含访问代码的页面，并请求将其复制并粘贴到您的应用程序中。

您可以在此处找到详细信息：https://developers.google.com/identity/protocols/OAuth2InstalledApp?hl=RU#choosingredirecturi

小例子：

GoogleAuthorizationCodeFlow authorizationCodeFlow = new GoogleAuthorizationCodeFlow
                    .Builder(httpTransport, jsonFactory, clientId, clientSecret, scopes)
                    .setCredentialDataStore(new MemoryDataStoreFactory().getDataStore("tokens"))
                    .build();
String userId = "user-id";
Credential credential = authorizationCodeFlow.loadCredential(userId);
if (credential == null) {
        GoogleAuthorizationCodeRequestUrl authorizationUrl = authorizationCodeFlow.newAuthorizationUrl();
        authorizationUrl.setRedirectUri(GoogleOAuthConstants.OOB_REDIRECT_URI);
        LOGGER.error("Please, authorize application. Visit {}", authorizationUrl);
        Scanner s = new Scanner(System.in);
        String code = s.nextLine();
        GoogleAuthorizationCodeTokenRequest tokenRequest = authorizationCodeFlow.newTokenRequest(code);
        tokenRequest.setRedirectUri(GoogleOAuthConstants.OOB_REDIRECT_URI);
        GoogleTokenResponse tokenResponse = tokenRequest.execute();
        credential = authorizationCodeFlow.createAndStoreCredential(tokenResponse, userId);
    }

Answer 3

以下是您要从google api获取代码

List<String> responsetype = Arrays.asList("code");

// Step 1: Authorize -->
String authorizationUrl = new GoogleBrowserClientRequestUrl(clientId, redirectUrl, Arrays.asList(scope))
            .setResponseTypes(responsetype)
            .build();

// Point or redirect your user to the authorizationUrl.
System.out.println("Go to the following link in your browser:");
System.out.println(authorizationUrl);

它将从浏览器返回一个Url点击网址，您将在响应中获得代码。

如何在Java中获取GoogleAuthorizationCodeTokenRequest的授权码？

3 个答案: