如何在Twitter Streaming API中使用Spring社交获取基于位置的推文?

时间:2016-01-08 10:57:55

标签: java twitter spring-social twitter-streaming-api spring-social-twitter

我需要根据地理位置直播Feed。通过Twitter API文档,我了解到我们可以基于geolocaion进行搜索。

但是有可能根据地理位置进行流式传输吗?我使用spring social twitter进行API集成。

public  function index()
    {
        $this->load->model("testmodel");
        $data['records'] = $this->model->getAllRecords();
        $this->load->view("edit",array('data'=>$data));
    }

我看到Twitter流API也有一个请求的位置参数。但我如何使用Spring Social Twitter实现它。

由于

1 个答案:

答案 0 :(得分:1)

我一直在尝试这个,最后得到了流媒体推文。 我继续学习本教程 - https://spring.io/guides/gs/accessing-twitter

访问http://localhost:8080/stream/10_000将在旧金山地区发送推文(截至目前已硬编码),在控制台中播放10秒,并在10秒后在网页中显示这些推文。

在Controller类中添加一个@RequestMapping方法,如下所示: HelloController.java

@RequestMapping("/stream/{time}")
public String streamTweet(@PathVariable int time, Model model) throws InterruptedException{
    if (connectionRepository.findPrimaryConnection(Twitter.class) == null) {
        return "redirect:/connect/twitter";
    }
    Model returnedmodel = streamService.streamApi(model, time);
    model = returnedmodel;

    return "stream";
}

StreamService.java

@Service
public class StreamService {

    private final Logger log = LoggerFactory.getLogger(StreamService.class);

    @Autowired
    private Twitter twitter;

    public Model streamApi(Model model, int time) throws InterruptedException{

        List<Tweet> tweets = new ArrayList<>();

        List<StreamListener> listeners = new ArrayList<StreamListener>();
        StreamListener streamListener = new StreamListener() {

            @Override
            public void onWarning(StreamWarningEvent warningEvent) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onTweet(Tweet tweet) {
                System.out.println(tweet.getUser().getName() + " : " + tweet.getText());
                log.info("User '{}', Tweeted : {}", tweet.getUser().getName() , tweet.getText());
                tweets.add(tweet);
                model.addAttribute("tweets", tweets);
            }

            @Override
            public void onLimit(int numberOfLimitedTweets) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onDelete(StreamDeleteEvent deleteEvent) {
                // TODO Auto-generated method stub

            }
        };

        listeners.add(streamListener);
        //This sets the GeoCode (-122.75,36.8,-121.75,37.8) of San Francisco(South-West and North-East) region as given in below twitter docs
        //https://dev.twitter.com/streaming/overview/request-parameters#locations
        Float west=-122.75f;
        Float south=36.8f;
        Float east=-121.75f;
        Float north = 37.8f;

        FilterStreamParameters filterStreamParameters = new FilterStreamParameters();
        filterStreamParameters.addLocation(west, south, east, north);

        Stream userStream = twitter.streamingOperations().filter(filterStreamParameters, listeners);
        Thread.sleep(time);
        userStream.close();
        return model;
    }
}

stream.html

<html>
    <head>
        <title>Hello Twitter Stream</title>
    </head>
    <body>                  
        <h4>The Twitter Stream:</h4>`enter code here`
        <ul>
            <li th:each="tweet:${tweets}" 
                th:text="${tweet.text} + ' tweeted by - ' + ${tweet.user.name} 
                    + ' from ' + ${tweet.user.location} 
                    + ' @ ' + ${tweet.createdAt}"> 
                    Tweet
            </li>
        </ul>
    </body>
</html>
PS:我知道你不想做这样的事情(即在等待X秒之后显示推文,我只是这样做才能使这个工作)

顺便说一句,如果您有任何想法我如何使用此流来实时显示推文,(使用或不使用websockets)请分享。感谢。