尝试使用Google Blogger API创建帖子时发生SessionExpiredException OAuth2

Question

我正在使用下面的代码更新现有的博文。我得到SessionExpiredException。我究竟做错了什么？

GoogleService service = new BloggerService("MyBloggerIntegration-v1");   
    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport(); 
    JsonFactory jsonFactory = com.google.api.client.json.jackson2.JacksonFactory.getDefaultInstance(); 

    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
      httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET, 
      Arrays.asList("https://www.googleapis.com/auth/blogger")) 
      .setAccessType("offline")    
      .setApprovalPrompt("auto").build(); 

    String url = flow.newAuthorizationUrl().setRedirectUri(REDIRECT_URI).build(); 
    System.out.println("Please open the following URL in your " 
      + "browser then type the authorization code:"); 
    System.out.println(" " + url); 
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    String code = br.readLine(); 
    GoogleTokenResponse response = flow.newTokenRequest(code).setRedirectUri(REDIRECT_URI).execute();   
    System.out.println("Response : "+response.toPrettyString()); 
    service.setOAuth2Credentials(new GoogleCredential().setFromTokenResponse(response)); 

    Entry myEntry = new Entry(); 
    myEntry.setTitle(new PlainTextConstruct(title)); 
    myEntry.setContent(new PlainTextConstruct(content)); 
    URL postUrl = new URL("http://www.blogger.com/feeds/" + blogID + "/posts/default/"+postID); 
    service.update(postUrl, myEntry); 

输出：

Please open the following URL in your browser then type the authorization code: 
https://accounts.google.com/o/oauth2/auth?access_type=offline&approval_prompt=auto&client_id=67330569820-unio63db63ljnloc1hd52bvcoj8g8vrr.apps.googleusercontent.com&redirect_uri=http://cegcodingcamp.blogspot.in&response_type=code&scope=https://www.googleapis.com/auth/blogger 
4/d_1GaJe4lHpOdRmhidwWgC7_utKoqfbwXnfYoP2hR_c# 
Response : { 
    "access_token" : "ya29.MQJqQi7HqTcJGoCCU-Lo5Ybdb1Otc-Z_fsAN97oySVsU84A7IXr_cPqWcrMe2raZoSvU", 
    "expires_in" : 3591, 
    "token_type" : "Bearer" 
} 
Exception in thread "main" com.google.gdata.client.GoogleService$SessionExpiredException: Unauthorized 
User does not have permission to edit object 

at com.google.gdata.client.http.GoogleGDataRequest.handleErrorResponse(GoogleGDataRequest.java:570) 
at com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:560) 
at com.google.gdata.client.http.HttpGDataRequest.execute(HttpGDataRequest.java:538) 
at com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.java:536) 
at com.google.gdata.client.Service.update(Service.java:1563) 
at com.google.gdata.client.Service.update(Service.java:1530) 
at com.google.gdata.client.GoogleService.update(GoogleService.java:604) 
at line service.update(postUrl, myEntry) 

我也尝试以下方法

方法2：

service = new GoogleService("blogger", "exampleCo-exampleApp-1"); 
    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport(); 
    com.google.api.client.json.jackson2.JacksonFactory jacksonFactory = com.google.api.client.json.jackson2.JacksonFactory.getDefaultInstance(); 

    Credential credential = new GoogleCredential.Builder() 
      .setTransport(httpTransport) 
      .setJsonFactory(jacksonFactory) 
      .setServiceAccountId("xxxx.apps.googleusercontent.com") 
      .setServiceAccountPrivateKeyFromP12File(new File("resources/xxxx.p12")) 
      .setServiceAccountScopes(Collections.singleton("https://www.googleapis.com/auth/blogger")) 
      .build(); 
    service.setOAuth2Credentials(credential); 

方法3：

service = new GoogleService("blogger", "exampleCo-exampleApp-1");   
    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport(); 
    JsonFactory jsonFactory = com.google.api.client.json.jackson2.JacksonFactory.getDefaultInstance(); 
    List<String> collection = new ArrayList<String>(); 
    collection.add("https://www.googleapis.com/auth/blogger"); 

    GoogleCredential credential = new GoogleCredential.Builder() 
      .setTransport(httpTransport)     
      .setJsonFactory(jsonFactory) 
      .setServiceAccountId("xxxx.apps.googleusercontent.com") 
      .setServiceAccountPrivateKeyFromP12File(
       new File("resources\\xxxx.p12")) 
      .setServiceAccountScopes(collection) 
      .build(); 

    credential.setAccessToken("ya29.MQJqQi7HqTcJGoCCU-Lo5Ybdb1Otc-Z_fsAN97oySVsU84A7IXr_cPqWcrMe2raZoSvU"); 
    service.setOAuth2Credentials(credential); 

但我得到同样的例外。

Answer 1

看起来像不支持Blogger API的V2。我们必须使用V3 API。

导入罐下载过之后：http://developers.google.com/blogger/docs/3.0/api-lib/java

然后按照这样的回答：Using Java blogger API v3 to post on blog dynamically