Twitter4j - 超出了限额

Question

我想getFollowersIds()在Twitter4j中使用粉丝,但我明白了

ConnectionErrorException ...超出速率限制

public static void main(String[] args) {
        try {
            Twitter twitter = TwitterFactory.getSingleton();
            String[] srch = new String[]{"TechCrunch"};
            ResponseList<User> users = twitter.lookupUsers(srch);
            for (User user : users) {

                UserHarvest us = new UserHarvest(6017542);
                us.getFollowersIds();
                try {
                    us.getContributors();
                } catch (ConnectionErrorException ex) {
                    Logger.getLogger(UserHarvest.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        } catch (TwitterException ex) {
            Logger.getLogger(UserHarvest.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

错误信息:

Exception in thread "main" harvest.twitterharvest.ConnectionErrorException: Connection could not have been established
    at harvest.twitterharvest.WrapperTwitter4J.getFollowersIDs(WrapperTwitter4J.java:75)
    at harvest.twitterharvest.UserHarvest.getFollowersIds(UserHarvest.java:106)
    at harvest.twitterharvest.UserHarvest.main(UserHarvest.java:140)
Caused by: 429:Returned in API v1.1 when a request cannot be served due to the application's rate limit having been exhausted for the resource. See Rate Limiting in API v1.1.(https://dev.twitter.com/docs/rate-limiting/1.1)
message - Rate limit exceeded
code - 88

Relevant discussions can be found on the Internet at:
    http://www.google.co.jp/search?q=92c30ec6 or
    http://www.google.co.jp/search?q=19e1da11
TwitterException{exceptionCode=[92c30ec6-19e1da11], statusCode=429, message=Rate limit exceeded, code=88, retryAfter=-1, rateLimitStatus=RateLimitStatusJSONImpl{remaining=0, limit=15, resetTimeInSeconds=1384512813, secondsUntilReset=904}, version=3.0.4}
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:162)
    at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:61)
    at twitter4j.internal.http.HttpClientWrapper.get(HttpClientWrapper.java:89)
    at twitter4j.TwitterImpl.get(TwitterImpl.java:1894)
    at twitter4j.TwitterImpl.getFollowersIDs(TwitterImpl.java:409)
    at harvest.twitterharvest.WrapperTwitter4J.getFollowersIDs(WrapperTwitter4J.java:73)
    ... 2 more

我看secondsUntilReset=904.我在1小时后运行代码并得到相同的错误消息.我不知道为什么.谢谢你的帮助.

Answer 1

Twitter API中有速率限制.您不能每15分钟调用一次给定的Twitter API端点超过给定次数(代表未经授权的用户).

您遇到的问题是您的代码必须非常快速地达到速率限制(对于给定的经过身份验证的用户,检索关注者ID的端点限制为每15分钟15次调用)因此您必须等待(904秒)才能再次尝试.

请注意您正在调用的Twitter API端点(通过Twitter4J),以节省您的API调用,从而避免达到速率限制.

有关更多信息,请查看Twitter开发人员上的这些资源,尤其是其文档:

• v1.1中的REST API速率限制(关于Twitter API中的速率限制的一般主题)
• REST API v1.1按资源限制每个窗口(每个端点的速率限制)
• 错误代码和响应(向您解释什么是您的88"响应代码").