Spring Boot似乎没有获得存储库

Question

I can't use my CrudRepository in my Service class. I can create the repository, but when I Autowire it to my Service class I get this error:

Parameter 0 of constructor in com.test.service.testService required a bean of type 'com.test.repository.TestRepository' that could not be found.

Action:

Consider defining a bean of type 'com.test.repository.TestRepository' in your configuration.

This seems to be a big issue for many people. I've tried all kinds of things like @ComponentScan, @EnableAutoConfiguration, @EnableJpaRepositories but none of that worked.

Main App:

@ComponentScan ({"com.test.repository", "com.test.controller","com.test.service","com.test.model"})
@EnableJpaRepositories
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class})
public class Application {
    public static void main(String[] args){
        SpringApplication.run(Application.class);
    }
}

Service:

    public testService(TestRepository testRepository) {
        this.testRepository= testRepository;
    }

Repository

package com.test.TestRepository;


import com.test.model.Item;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface TestRepository extends CrudRepository<Item, Long> {
}

POM.xml

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.1.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
        <version>2.1.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.8</version>
    </dependency>
</dependencies>

I expect the repository to be Autowired and fully functional.

Answer 1

尝试这个：

@EnableJpaRepositories(basePackages = {"com.test"})

Answer 2

Try remove the @Repository annotation above your TestRepository interface.

"Spring @Repository annotation is used to indicate that the class provides the mechanism for storage, ... " see: https://www.journaldev.com/21460/spring-repository-annotation

Suggestion: Modify your TestRepository interface to extend the JpaRepository. It has more functionality.