使用Java为Blogger API验证自己的Google帐户

我想写一个机器人，将本地文件发布到谷歌博客。我将是唯一一个使用此应用程序的人，因此我不需要设置用户友好的身份验证例程。我花了一个晚上的时间试着把事情安排好，但我仍然在为OAuth请求而挣扎

我创建了一个新的Google应用程序项目（类型：installed desktop app），并将Blogger API添加为作用域，然后为我自己的帐户导出了一个客户端机密文件（Google-credentials.json，见下文）

代码：

我还尝试了GoogleAuthorizationCodeFlow+GoogleTokenResponse，但我不知道在哪里注册令牌响应，因为新的GoogleCredential（）.setFromTokenResponse（）似乎是不允许的

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我从谷歌找到的例子是几年前的导入授权CodeInstalledApp，它不是我的依赖项com.Google.api:Google api services blogger:v3-rev50-1.21.0的一个类。

我遇到了同样的问题，我这样解决了：

private static Credential authorize() throws Exception 
   {
   HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
   JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
   List<String> scopes = Arrays.asList(BloggerScopes.BLOGGER);

   // load client secrets
  GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(jsonFactory, new InputStreamReader(new FileInputStream(clientId_File)));

  // set up authorization code flow
  GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
     httpTransport, jsonFactory, clientSecrets, scopes).build();

 // authorize
  return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
  }

protected void doTest2() throws Exception 
    {
    // Configure the Installed App OAuth2 flow.
    Credential credential = authorize();

    Blogger blogger = new Blogger.Builder(httpTransport, jsonFactory, credential).setApplicationName(APP_NAME).setHttpRequestInitializer(credential)
            .build();

    // The request action object.
    GetByUrl blogGetByUrlAction = blogger.blogs().getByUrl(BLOG_URL);

    // Configure which blog URL to look up.
    blogGetByUrlAction.setUrl(BLOG_URL);

    // Restrict the result content to just the data we need.
    blogGetByUrlAction.setFields("description,name,posts/totalItems,updated");

    // This step sends the request to the server.
    Blog blog = blogGetByUrlAction.execute();

    // Now we can navigate the response.
    System.out.println("Name: " + blog.getName());
    System.out.println("Description: " + blog.getDescription());
    System.out.println("Post Count: " + blog.getPosts().getTotalItems());
    System.out.println("Last Updated: " + blog.getUpdated());
}

private static Credential authorize（）引发异常
{
HttpTransport HttpTransport=GoogleNetHttpTransport.newTrustedTransport（）；
JsonFactory JsonFactory=JacksonFactory.getDefaultInstance（）；
List scopes=Arrays.asList（BloggerScopes.BLOGGER）；
//加载客户端机密
GoogleClientSecrets clientSecrets=GoogleClientSecrets.load（jsonFactory，新的InputStreamReader（新文件InputStream（clientId_文件））；
//设置授权代码流
GoogleAuthorizationCodeFlow=新建GoogleAuthorizationCodeFlow.Builder(
httpTransport，jsonFactory，clientSecrets，scopes）.build（）；
//授权
返回新的AuthorizationCodeInstalledApp（流，新的LocalServerReceiver（））。授权（“用户”）；
}
受保护的void doTest2（）引发异常
{
//配置已安装的应用程序OAuth2流。
凭证=授权（）；
Blogger Blogger=new Blogger.Builder（httpTransport，jsonFactory，credential）.setApplicationName（APP_NAME）.setHttpRequestInitializer（credential）
.build（）；
//请求操作对象。
GetByUrl BloggGetByUrlAction=blogger.blogs（）.GetByUrl（BLOG_URL）；
//配置要查找的博客URL。
setUrl（BLOG_URL）；
//将结果内容限制为我们需要的数据。
设置字段（“描述、名称、帖子/totalItems，已更新”）；
//此步骤将请求发送到服务器。
Blog Blog=blogGetByUrlAction.execute（）；
//现在我们可以浏览响应。
System.out.println（“Name:+blog.getName（））；
System.out.println（“Description:+blog.getDescription（））；
System.out.println（“帖子计数：+blog.getPosts（）.getTotalItems（））；
System.out.println（“上次更新：+blog.getUpdated（））；
}

我还需要在pom.xml（maven项目）中设置以下依赖项

com.google.api-client
谷歌api客户端
1.20.0
com.google.api-client
google-api-client-java6
1.20.0
com.google.oauth-client
谷歌oauth客户端jetty
1.21.0
com.google.api
谷歌api服务博客
v3-rev50-1.21.0

{
  "installed": {
    "client_id": "<removed>",
    "project_id": "<removed>",
    "auth_uri": "https://accounts.google.com/o/oauth2/auth",
    "token_uri": "https://accounts.google.com/o/oauth2/token",
    "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
    "client_secret": "<removed>",
    "redirect_uris": [
      "urn:ietf:wg:oauth:2.0:oob",
      "http://localhost"
    ]
  }
}

com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden
{
  "code" : 403,
  "errors" : [ {
    "domain" : "usageLimits",
    "message" : "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.",
    "reason" : "dailyLimitExceededUnreg",
    "extendedHelp" : "https://code.google.com/apis/console"
  } ],
  "message" : "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup."
}

private static Credential authorize() throws Exception 
   {
   HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
   JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
   List<String> scopes = Arrays.asList(BloggerScopes.BLOGGER);

   // load client secrets
  GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(jsonFactory, new InputStreamReader(new FileInputStream(clientId_File)));

  // set up authorization code flow
  GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
     httpTransport, jsonFactory, clientSecrets, scopes).build();

 // authorize
  return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
  }

protected void doTest2() throws Exception 
    {
    // Configure the Installed App OAuth2 flow.
    Credential credential = authorize();

    Blogger blogger = new Blogger.Builder(httpTransport, jsonFactory, credential).setApplicationName(APP_NAME).setHttpRequestInitializer(credential)
            .build();

    // The request action object.
    GetByUrl blogGetByUrlAction = blogger.blogs().getByUrl(BLOG_URL);

    // Configure which blog URL to look up.
    blogGetByUrlAction.setUrl(BLOG_URL);

    // Restrict the result content to just the data we need.
    blogGetByUrlAction.setFields("description,name,posts/totalItems,updated");

    // This step sends the request to the server.
    Blog blog = blogGetByUrlAction.execute();

    // Now we can navigate the response.
    System.out.println("Name: " + blog.getName());
    System.out.println("Description: " + blog.getDescription());
    System.out.println("Post Count: " + blog.getPosts().getTotalItems());
    System.out.println("Last Updated: " + blog.getUpdated());
}

<dependency>
    <groupId>com.google.api-client</groupId>
    <artifactId>google-api-client</artifactId>
    <version>1.20.0</version>
</dependency>
<dependency>
    <groupId>com.google.api-client</groupId>
    <artifactId>google-api-client-java6</artifactId>
    <version>1.20.0</version>
</dependency>
<dependency>
    <groupId>com.google.oauth-client</groupId>
    <artifactId>google-oauth-client-jetty</artifactId>
    <version>1.21.0</version>
</dependency>
<dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-blogger</artifactId>
    <version>v3-rev50-1.21.0</version>
</dependency>