如何使用Twitter4j显示推文

Question

I have followed this tutorial http://www.javacodegeeks.com/2012/03/twitter-api-on-your-java-application.html and did the exact same thing. But I am getting an error which is shown below. Am I missing something? Should I be setting some permissions in any file? I have checked in many places but still couldn't fix this. Please help

Exception in thread "main" 401:Authentication credentials   
(https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have set 
valid conumer key/secret, access token/secret, and the system clock in in sync.
error - Not authorized
request - /1/statuses/user_timeline.json?     
TwitterException{exceptionCode=[ced778ef-115a04e4], statusCode=401, retryAfter=-1,   
rateLimitStatus=RateLimitStatusJSONImpl{remainingHits=145, hourlyLimit=150, 
resetTimeInSeconds=1362901, secondsUntilReset=1235, resetTime=Sun Mar 10 13:15:51 IST  
2013}, featureSpecificRateLimitStatus=null, version=2.2.5}
at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:185)
at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:65)
at twitter4j.internal.http.HttpClientWrapper.get(HttpClientWrapper.java:85)
at twitter4j.TwitterImpl.get(TwitterImpl.java:1895)
at twitter4j.TwitterImpl.getUserTimeline(TwitterImpl.java:254)
at com.jdwb.twitterapi.tweet.main(tweet.java:33)

---

 public class tweet {
     public static void main(String[] args) throws TwitterException {
         Twitter twitter = new TwitterFactory().getInstance();

         ResponseList < Status > a = twitter.getUserTimeline(new Paging(1, 5));
         for (Status b: a) {
             System.out.println(b.getText());
         }
     }
 }



-------------------------Properties file-------------

debug=true
oauth.consumerKey=***************
oauth.consumerSecret=***********
oauth.accessToken=*******************
oauth.accessTokenSecret=***********************

---

[Sun Mar 10 14:41:26 IST 2013]status: 401 Unauthorized
[Sun Mar 10 14:41:26 IST 2013]x-ratelimit-remaining: 143
[Sun Mar 10 14:41:26 IST 2013]content-encoding: gzip
[Sun Mar 10 14:41:26 IST 2013]date: Sun, 10 Mar 2013 09:11:26 GMT
[Sun Mar 10 14:41:26 IST 2013]x-ratelimit-reset: 1362908664
[Sun Mar 10 14:41:26 IST 2013]x-transaction: 58f6c286bb1aa6de
[Sun Mar 10 14:41:26 IST 2013]pragma: no-cache
[Sun Mar 10 14:41:26 IST 2013]cache-control: no-cache, no-store, must-revalidate, pre-check=0, post-check=0
[Sun Mar 10 14:41:26 IST 2013]{"request":"\/1\/statuses\/user_timeline.json?include_rts=true&include_entities=true&include_my_retweet=1&count=5&page=1","error":"Not authorized"}

 Exception in thread "main" 401:Authentication credentials   
 (https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have 
 set valid conumer key/secret, access token/secret, and the system clock in in sync.
 error - Not authorized

Answer 1

I presume that you have not got your authorization set up correctly

have a look here for how to set up the properties file.

you need to sign up to the twitter dev to get your API keys so that you can fill in the information that you need.