Question

我想在我的Android应用中使用Twitter4j发推文。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。但是你可以看到我正在使用构建器设置我的密钥。有人可以帮我解决一下吗？感谢。

Answer 1

问题在于以下几行。

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

您正在将配置传递给一个TwitterFactory实例，并使用另一个TwitterFactory实例来获取Twitter实例。

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

我建议您按如下方式修改代码：

    //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();

并使用此Twitter实例。它会起作用。

Answer 2

我在Twitter4j上遇到配置问题，因为我没有提供正确的配置。因此，为了对其进行修复，我创建了以下函数来建立我的配置，以供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;
}

要获取必需的信息，您必须具有Twitter开发者帐户，并且要获取先前创建的应用程序的身份验证信息，请访问：Projects and Apps。

最后，我能够从一个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

Twitter4j身份验证凭据丢失

2 个答案: