找不到SpringBoot存储库（休眠）

你好我正在使用spring-boot和hibernate创建简单的webapp。 application.properties文件包含db连接的属性。贝娄是我的文件：找不到SpringBoot存储库（休眠）

应用背景：

package hbwc; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.builder.SpringApplicationBuilder; 
import org.springframework.boot.context.web.SpringBootServletInitializer; 
import org.springframework.context.ApplicationContext; 
import org.springframework.context.annotation.ComponentScan; 

@SpringBootApplication 
public class Application { 

    public static void main(String[] args) { 
     ApplicationContext ctx = SpringApplication.run(Application.class, args); 
    } 
}

Customer实体：

package hbwc.customer; 

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 

@Entity 
public class Customer { 

    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private long id; 
    private String firstName; 
    private String lastName; 

    protected Customer() { 
    } 

    public Customer(String firstName, String lastName) { 
     this.firstName = firstName; 
     this.lastName = lastName; 
    } 

    @Override 
    public String toString() { 
     return String.format(
       "Customer[id=%d, firstName='%s', lastName='%s']", 
       id, firstName, lastName); 
    } 

}

客户资料库：

package hbwc.customer; 

import org.springframework.data.repository.CrudRepository; 

public interface CustomerRepository extends CrudRepository<Customer, Long> {}

CustomerController：

package hbwc.customer; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RestController; 
import java.util.List; 

@RestController 
public class CustomerController { 

    @Autowired 
    CustomerRepository repository; 

    @RequestMapping("/customers") 
     public String index() { 
     List<Customer> all = (List<Customer>) repository.findAll(); 
     return "ok"; 
    } 
}

我使用gradlew建设和运行这个例子。但我有问题，而运行它（./梯形图运行）。我收到了一个异常，告诉我找不到我的CustomerRepository。 堆栈跟踪：

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [hbwc.customer.CustomerRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1301) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1047) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533) 
    ... 18 common frames omitted

请给我一些建议什么是错我的代码。

application.properties（项目根目录）

spring.datasource.url=jdbc:mysql://localhost/hbwc 
spring.datasource.username=root 
spring.datasource.password=baza1 

spring.jpa.show-sql=true 
spring.jpa.hibernate.ddl-auto=create-drop

来源

2015-05-01 tomgal

您需要配置数据源，并且需要在类路径上使用弹簧数据的impl（例如spring-data-jpa）。请参阅http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-sql.html – mp911de

在application.properties文件中拥有属性不够？ – tomgal

看看这里的例子看起来好吗https://spring.io/guides/gs/accessing-data-jpa/。您可以尝试向您的应用程序配置类添加'@Repository'到您的CustomerRepository接口或'@EnableJpaRepositories'。根据这个例子，这两者都不需要，但是无论如何都要尝试。 –

你不必在你的仓库类中的任何分类元件注释。尝试添加@Repository或@Component。然后，您应该（假设启用了组件扫描）能够将存储库自动装入您的控制器。

来源

2016-11-23 02:59:30 geekonablog

找不到SpringBoot存储库（休眠）

回答

相关问题