Twitter4j:在主题标签中搜索关键字

Question

我正在使用Twitter4j开发应用程序.我正在尝试使用某个标签导入推文(例如:天气)然后,我想通过搜索关键字对推文进行分类.

例如:导入的一些推文可能是

- OMG, I hate this rain #weather
- This sunshine makes me feel so happy #weather
- Such strange #weather! One moment it rains, the next the sun shines. Confusing!
- Rain makes me sad #weather
- I love the sunshine! #weather

然后,我想将这些推文归类为:

- hate, Confusing, sad,... are negative 
- happy, love,... are positive

PositiveTweets将是:

- This sunshine makes me feel so happy #weather
- I love the sunshine! #weather

NegativeTweets将是:

- OMG, I hate this rain #weather
- Such strange #weather! One moment it rains, the next the sun shines. Confusing!
- Rain makes me sad #weather

所以,NegativeTweets=3和PositiveTweets=2

任何人都可以帮我这个或指向类似的东西吗？

Answer 1

您可以查询#weather主题标签,然后将推文分成单独的列表,具体取决于它们是否包含您为好天气或恶劣天气指定的任何关键字.

public static void main(String[] args) throws TwitterException {
    List<Tweet> goodWeather = new ArrayList<Tweet>();
    List<Tweet> badWeather = new ArrayList<Tweet>();

    Twitter twitter = new TwitterFactory().getInstance();
    System.out.println("Fetching Weather Data...");

    // get the 1000 most recent tweets tagged #weather
    for (int page = 1; page <= 10; page++) {
        Query query = new Query("#weather");
        query.setRpp(100); // 100 results per page
        query.setPage(page);
        QueryResult qr = twitter.search(query);
        List<Tweet> qrTweets = qr.getTweets();

        // break out if there are no more tweets
        if(qrTweets.size() == 0) break;

        // separate tweets into good and bad bins
        for(Tweet t : qrTweets) {
            if (t.getText().toLowerCase().contains("happy") ||
                t.getText().toLowerCase().contains("love")) {
                goodWeather.add(t);
            }

            if (t.getText().toLowerCase().contains("sad") ||
                t.getText().toLowerCase().contains("hate")) {
                badWeather.add(t);
            }
        }
    }

    System.out.println("Good Weather: " + goodWeather.size());
    for (Tweet good : goodWeather) {
        System.out.println(good.getCreatedAt() + ": " + good.getText());
    }

    System.out.println("\nBad Weather: " + badWeather.size());
    for (Tweet bad : badWeather) {
        System.out.println(bad.getCreatedAt() + ": " + bad.getText());
    }
}