Field ** in com。**需要無法找到'com。**'類型的bean

Question

我跟隨this tutorial，我在啓動我的應用程序時遇到了一些麻煩。

當我在後端文件夾我碰到下面的錯誤運行mvn spring-boot:run：

Field movieRepository in com.movieseat.services.impl.MovieServiceImpl required a bean of type 'com.movieseat.repositories.MovieRepository' that could not be found.

MovieServiceIml.java

package com.movieseat.services.impl; 

// Java imports 
import java.util.ArrayList; 
import java.util.Iterator; 
import java.util.List; 

// Spring imports 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Service; 

// Project imports 
import com.movieseat.models.Movie; 
import com.movieseat.services.MovieService; 
import com.movieseat.repositories.MovieRepository; 

@Service 
public class MovieServiceImpl implements MovieService { 

    @Autowired private MovieRepository movieRepository; 

    @Override public List<Movie> getAllmovies() { 
     List<Movie> movies = new ArrayList<Movie>(); 
     Iterator<Movie> iterator = movieRepository.findAll().iterator(); 
     while (iterator.hasNext()) { 
      movies.add(iterator.next()); 
     } 

     return movies; 
    } 

} 

MovieRepository.java

package com.movieseat.repositories; 

// Java imports 
import java.io.Serializable; 

// Spring imports 
import org.springframework.data.repository.CrudRepository; 
import org.springframework.stereotype.Repository; 

// Project imports 
import com.movieseat.models.Movie; 

@Repository 
public interface MovieRepository extends CrudRepository<Movie, Serializable> {} 

使用下面的結構：

• COM
  • movieseat
    • Application.java
    • 控制器
      • MovieController.java
    • 車型
      • MovieModel.java
    • 庫
      • MovieRepository.java
    • 服務
      • IMPL
        • MovieServiceImpl.java
      • MovieService.java

這是我Application.java：

package com.movieseat; 

// Spring importss 
import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.web.support.SpringBootServletInitializer; 
import org.springframework.context.annotation.ComponentScan; 
import org.springframework.data.jpa.repository.config.EnableJpaRepositories; 

@SpringBootApplication 
@ComponentScan({"com.movieseat.*"}) 
@EnableJpaRepositories("com.movieseat.repositories.*") 
public class Application extends SpringBootServletInitializer { 
    public static void main(String[] args) { 
     SpringApplication.run(Application.class, args); 
    } 
} 

我的想法是，使用@EnableJpaRepositories("com.movieseat.repositories.*")將使所有存儲庫訪問。但我做錯了什麼。

Answer 1

嘗試沒有*（通配符），

@EnableJpaRepositories("com.movieseat.repositories") 

確保您有@Entity註釋您Movie。