针对完整7天范围的twitter4j搜索
针对完整7天范围的twitter4j搜索
提问于 2018-07-22 11:48:28
我试着用关键字保存tweet，我知道免费API只给出了7天的结果，但它从来没有得到超过几个小时的时间线，有时甚至给我一个小时的范围。我确实对搜索查询设置了自开始()和直到()。我从一次运行中得到的推文的最大数量不到400条。谁能告诉我为什么它会自动停止，但结果如此之少？谢谢。
public static void main(String[] args) throws TwitterException {
String KEY_word;
String Exclude;
String Since;
String Until;
String OPT_dir;
String time;
int x;
Propertyloader confg = new Propertyloader();
KEY_word = confg.getProperty("KEY_word");
Exclude = confg.getProperty("Exclude");
Since = confg.getProperty("Since");
Until = confg.getProperty("Until");
OPT_dir = confg.getProperty("OPT_dir");
Twitter twitter = new TwitterFactory().getInstance();
try {
time = new SimpleDateFormat("yyyyMMddHHmm'.txt'").format(new Date());
x = 1;
Query query = new Query(KEY_word + Exclude);
query.since(Since);
query.until(Until);
QueryResult result;
do {
result = twitter.search(query);
List<Status> tweets = result.getTweets();
for (Status tweet : tweets) {
try {
String filedir = OPT_dir + KEY_word + time;
writeStringToFile(filedir, x + ". " + "@" + tweet.getUser().getScreenName() + ", At: " + tweet.getCreatedAt() + ", Rt= " + tweet.getRetweetCount() + ", Text: " + tweet.getText());
x += 1;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} while ((query = result.nextQuery()) != null);
System.exit(0);
} catch (TwitterException te) {
te.printStackTrace();
System.out.println("Failed to search tweets: " + te.getMessage());
System.exit(-1);
}
}
public static void writeStringToFile(String filePathAndName, String stringToBeWritten) throws IOException{
try
{
String filename= filePathAndName;
boolean append = true;
FileWriter fw = new FileWriter(filename,append);
fw.write(stringToBeWritten);//appends the string to the file
fw.write("\n" +"\n");
fw.close();
}
catch(IOException ioe)
{
System.err.println("IOException: " + ioe.getMessage());
}
}回答 1
Stack Overflow用户
发布于 2018-08-16 21:13:14
您可以使用setMaxId获取更多推文。下面是一个示例：
long lowestTweetId = Long.MAX_VALUE;
x = 1;
Query query = new Query("stackoverflow");
query.since("2018-08-10");
query.until("2018-08-16");
query.setCount(100); //The number of tweets to return per page, up to a maximum of 100. Defaults to 15. https://developer.twitter.com/en/docs/tweets/search/api-reference/get-search-tweets.html
query.setResultType(Query.RECENT); // to get an order
int searchResultCount=100;
QueryResult result;
do {
result = twitter.search(query);
List<Status> tweets = result.getTweets();
for (Status tweet : tweets) {
try {
System.out.println( "@" + tweet.getUser().getScreenName() + ", At: " + tweet.getCreatedAt() );
x += 1;
if (tweet.getId() < lowestTweetId) {
lowestTweetId = tweet.getId();
query.setMaxId(lowestTweetId-1);
}
else {// each new maxid should be smaller than the other one so break here
//do whatever you want to handle it ex: break from two loops
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} while (searchResultCount != 0 );页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51461872
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