[英]Is it normal that sampling tweets using TwitterStream as in Twitter4J code example, I get just mainly question marks as user name and status?
I used the code as in the section "code example" in Twitter4j: 我使用了Twitter4j中“代码示例”部分中的代码:
public static void main(String[] args) throws TwitterException, IOException{
StatusListener listener = new StatusListener(){
public void onStatus(Status status) {
System.out.println(status.getUser().getName() + " : " + status.getText());
}
public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {}
public void onTrackLimitationNotice(int numberOfLimitedStatuses) {}
public void onException(Exception ex) {
ex.printStackTrace();
}
};
TwitterStream twitterStream = new TwitterStreamFactory().getInstance();
twitterStream.addListener(listener);
// sample() method internally creates a thread which manipulates TwitterStream and calls these adequate listener methods continuously.
twitterStream.sample();
}
As you can see, there's a println in the code above, inside the method "onStatus". 如您所见,在上面的代码中,在“ onStatus”方法内部有一个println。 The following photo shows what I get mainly from that code.
下图显示了我主要从该代码中获得的信息。 Is it normal?
正常吗
question marks...question marks everywhere 问号...到处都是问号
Indeed, i I filter just statuses whose user hasn't got a question mark in his user name, I got almost nothing. 的确,我只过滤用户名中没有问号的状态,我几乎什么也没有。 Moreover, I should also filter users whose location is public.
此外,我还应该过滤公开位置的用户。 With regards to that I also ask what is the difference between:
关于这一点,我也想问一下两者之间有什么区别?
user.isGeoEnabled()
and 和
user.getLocation() != ""
The responses you will get back are UTF-8 encoded https://dev.twitter.com/tags/utf-8 您将获得的响应是UTF-8编码的https://dev.twitter.com/tags/utf-8
If you look at some of the accounts in the output they include non-western european characters https://twitter.com/tomokichi_koyo . 如果您查看输出中的某些帐户,它们将包含非西欧字符https://twitter.com/tomokichi_koyo 。 These are breaking the output.
这些正在破坏输出。
Try writing to a file instead and opening with a UTF-8 aware editor. 尝试改为写入文件,然后使用支持UTF-8的编辑器打开。 There are various answers about setting up java and your OS to default to UTF-8 but you will need to look for you specific combination https://stackoverflow.com/search?q=windows+console+java+utf-8
关于将Java和操作系统设置为默认为UTF-8的方法有多种答案,但是您需要查找特定的组合https://stackoverflow.com/search?q=windows+console+java+utf-8
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