Controller.Controller中的错误字段存储库需要找不到“ Controller.Re

我试图在一个Spring应用程序中将我的Controller连接到存储库，但是却收到一条错误消息：“在TweetsController.TweetsController中的Field tweetRepository需要一个类型为'TweetsController.TweetRepository'的bean。”

有人可以帮我弄这个吗？提前致谢。我还附带了代码示例。

TwitterApplication.java

package SpringMVC.Twitter;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@SpringBootApplication
@ComponentScan("AuthController")
@ComponentScan("TweetsController")
public class TwitterApplication {

    public static void main(String[] args) {
        SpringApplication.run(TwitterApplication.class, args);
    }
}

TwitterController.java

package TweetsController;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.Optional;

@RestController
public class TweetsController {

    @Autowired
    private TweetRepository tweetRepository;

    @RequestMapping("/tweets")
    public Iterable<TweetsContent> getAllTweets() {
        return tweetRepository.findAll();
    }

    @RequestMapping("tweet/{id}")
    public Optional<TweetsContent> getTweet(@PathVariable int id) {
        return tweetRepository.findById(id);
    }

    @RequestMapping(method = RequestMethod.POST, value = "/tweets")
    public boolean addTweet(@RequestBody TweetsContent tweet) {
        TweetsContent t = tweetRepository.save(new TweetsContent(tweet.getTitle(), tweet.getContent()));
        if (t != null)
            return true;
        else
            return false;
    }
}

TwitterRepository.java

package TweetsController;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface TweetRepository extends CrudRepository<TweetsContent, Integer> { }