没有可用类型的合格Bean（Spring数据）

Question

当我尝试自动连接扩展CrudRepository的接口时出现此错误。我有两个数据库的两个休眠xml配置。整个堆栈是

  

org.springframework.beans.factory.UnsatisfiedDependencyException：创建名称为'helloController'的bean时出错：通过字段'stockService'表示的不满足的依赖关系；嵌套的异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：没有类型为'com.publishing.test.stock.services.StockService'的合格Bean：预计至少有1个有资格作为自动装配候选的Bean。依赖项注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）}       org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:588）       org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java:88）

<hibernate-configuration>

<session-factory>

    <!-- Database connection settings -->
    <property name="connection.driver_class">org.postgresql.Driver</property>
    <property name="connection.url"></property>
    <property name="connection.username"></property>
    <property name="connection.password"></property>

    <!-- JDBC connection pool (use the built-in) -->
     <property name="connection.pool_size">100</property>

    <!-- SQL dialect -->
    <property name="dialect">org.hibernate.dialect.PostgreSQL95Dialect</property>

    <!-- Disable the second-level cache -->
    <!--<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>-->

    <!-- Enable Hibernate's automatic session context management -->
    <property name="current_session_context_class">thread</property>

    <!-- Echo all executed SQL to stdout -->
    <property name="show_sql">true</property>

    <!-- Drop the existing table and create new one -->
    <property name="hbm2ddl.auto">update</property>

    <property name="packagesToScan">com.publishing</property>

    <!-- Mention here all the model classes -->
    <mapping class="com.publishing.models.Stock"/>

</session-factory>

@Controller
public class HelloController {


@Autowired
private StockService stockService;

我在Spring Config中也有3行

<context:component-scan base-package="com.publishing" />
<context:annotation-config />
<jpa:repositories base-package="com.publishing" />

服务是

@Service("StockService")
public interface StockService extends CrudRepository<Stock, Long> {

编辑：

好，现在我们编辑了hibernate.cfg.xml

    <!-- Drop the existing table and create new one -->
    <property name="hbm2ddl.auto">update</property>

    <!--<property name="packagesToScan">com.publishing</property>-->

    <!-- Mention here all the model classes -->
    <mapping class="com.publishing.models.Stock"/>

和服务

@Service("stockService")
public interface StockService extends CrudRepository<Stock, Long> {

Answer 1

这是由于以下事实造成的：您将bean定义为StockService，并且将其引用为stockService，这应该是相同的名称，在服务和控制器中都区分大小写。

因此，应从以下位置更新bean定义：

@Service("StockService")

收件人：

@Service("stockService")

因为要使用stockService来引用它，所以它在以下位置的控制器中：

@Autowired
private StockService stockService;

注意：

还要确保您的bean是在spring的扫描软件包中定义的。