缺少 Twitter4j 身份验证凭据答案

【问题标题】：Twitter4j authentication credentials are missing缺少 Twitter4j 身份验证凭据
【发布时间】：2014-01-05 10:52:57
【问题描述】：

我想在我的 Android 应用中使用 Twitter4j 发布推文。这是我的代码：

 //TWITTER SHARE.
@Click (R.id. img_btn_twitter)
@Background
public void twitterPostWall(){

    try {


        //Twitter Conf.
        ConfigurationBuilder cb = new ConfigurationBuilder();
        cb.setDebugEnabled(true)
                .setOAuthConsumerKey(CONSUMER_KEY)
                .setOAuthConsumerSecret(CONSUMER_SECRET)
                .setOAuthAccessToken(ACCESS_KEY)
                .setOAuthAccessTokenSecret(ACCESS_SECRET);

        TwitterFactory tf = new TwitterFactory(cb.build());
        Twitter twitter = new TwitterFactory().getInstance();
        twitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);

        try {
            RequestToken requestToken = twitter.getOAuthRequestToken();

            Log.e("Request token: ", "" + requestToken.getToken());
            Log.e("Request token secret: ", "" + requestToken.getTokenSecret());
            AccessToken accessToken = null;


        }

        catch (IllegalStateException ie) {

            if (!twitter.getAuthorization().isEnabled()) {
                Log.e("OAuth consumer key/secret is not set.", "");
            }
        }


        Status status = twitter.updateStatus(postLink);
        Log.e("Successfully updated the status to [", ""  + status.getText() + "].");

    }

    catch (TwitterException te) {
        Log.e("TWEET FAILED", "");

    }
}

我总是从 Twitter4j 收到此错误消息：java.lang.IllegalStateException：缺少身份验证凭据。有关详细信息，请参阅http://twitter4j.org/en/configuration.html。但正如你所看到的，我正在使用 builder 来设置我的密钥。有人可以帮我解决它吗？谢谢。

【问题讨论】：

你从不使用 TwitterFactory 实例 'tf' ...
是的，但我不认为这是这个问题的重点。
嗯，有点像，因为你说'如你所见，我正在使用构建器来设置我的密钥'，但是使用构建器的唯一对象是'tf'，它永远不会用过的。因此，在 builder 上设置凭据的效果为零。您需要使用以下命令创建 'twitter' 对象：Twitter twitter = tf.getInstance(); 并放弃对twitter.setOAuthConsumer的调用

标签： java android api twitter twitter4j

【解决方案1】：

问题如下。

TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = new TwitterFactory().getInstance();

您将配置传递给一个TwitterFactory 实例并使用另一个TwitterFactory 实例来获取Twitter 实例。

因此，你得到 java.lang.IllegalStateException: Authentication credentials are missing

我建议你修改你的代码如下：

    //Twitter Conf.
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setDebugEnabled(true)
            .setOAuthConsumerKey(CONSUMER_KEY)
            .setOAuthConsumerSecret(CONSUMER_SECRET)
            .setOAuthAccessToken(ACCESS_KEY)
            .setOAuthAccessTokenSecret(ACCESS_SECRET);

    TwitterFactory tf = new TwitterFactory(cb.build());
    Twitter twitter = tf.getInstance();

并使用这个 twitter 实例。它会起作用的。

【讨论】：

【解决方案2】：

我在 Twitter4j 上的配置有问题，因为我没有提供正确的配置。所以为了修复它，我创建了以下函数来建立我的配置，以便以后在另一个函数中使用：

public static void main(String args[]) throws Exception {

    TwitterServiceImpl impl = new TwitterServiceImpl();
    ResponseList<Status> resList = impl.getUserTimeLine("spacex");

    for (Status status : resList) {
        System.out.println(status.getCreatedAt() + ": " + status.getText());
    }
}

public ResponseList<Status> getUserTimeLine(String screenName) throws TwitterException {
    
    TwitterFactory twitterFactory = new TwitterFactory(getConfiguration().build());
    Twitter twitter = twitterFactory.getInstance();
    twitter.getAuthorization();
    Paging paging = new Paging(1, 10);
    twitter.getId();
    return twitter.getUserTimeline(screenName, paging);
}

public ConfigurationBuilder getConfiguration() {
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setDebugEnabled(true)
    .setOAuthConsumerKey("myConsumerKey")
    .setOAuthConsumerSecret("myConsumerSecret")
    .setOAuthAccessToken("myAccessToken")
    .setOAuthAccessTokenSecret("myAccessTokenSecret");
    return cb;
}

要获取所需信息，您必须拥有 Twitter 开发者帐户，要获取之前创建的应用的身份验证信息，请访问：Projects and Apps。

最后，我能够从 SpaceX 帐户中检索数据：

Tue Nov 24 20:58:13 CST 2020: Falcon 9 launches Starlink to orbit – the seventh launch and landing of this booster https://twitter.com/SpaceX/status/1331431972430700545
Tue Nov 24 20:29:36 CST 2020: Deployment of 60 Starlink satellites confirmed https://twitter.com/SpaceX/status/1331424769632215040
Tue Nov 24 20:23:17 CST 2020: Falcon 9’s first stage lands on the Of Course I Still Love You droneship! https://twitter.com/SpaceX/status/1331423180431396864
Tue Nov 24 20:14:20 CST 2020: Liftoff! https://twitter.com/SpaceX/status/1331420926450094080
Tue Nov 24 20:02:38 CST 2020: Watch Falcon 9 launch 60 Starlink satellites ? https://www.spacex.com/launches/index.html  https://twitter.com/i/broadcasts/1ypKdgVXWgRxW
Tue Nov 24 19:43:14 CST 2020: T-30 minutes until Falcon 9 launches its sixteenth Starlink mission. Webcast goes live ~15 minutes before liftoff https://www.spacex.com/launches/index.html
Tue Nov 24 18:00:59 CST 2020: RT @elonmusk: Good Starship SN8 static fire! Aiming for first 15km / ~50k ft altitude flight next week. Goals are to test 3 engine ascent,…
Mon Nov 23 15:45:38 CST 2020: Now targeting Tuesday, November 24 at 9:13 p.m. EST for Falcon 9’s launch of Starlink, when weather conditions in the recovery area should improve
Sun Nov 22 20:45:13 CST 2020: Standing down from today’s launch of Starlink. Rocket and payload are healthy; teams will use additional time to complete data reviews and are now working toward backup opportunity on Monday, November 23 at 9:34 p.m. but keeping an eye on recovery weather
Sat Nov 21 22:09:12 CST 2020: More Falcon 9 launch and landing photos ? https://www.flickr.com/photos/spacex https://twitter.com/SpaceX/status/1330362669837082624

Where to get Auth Tokens for your app

【讨论】：