无法自动连接Spring数据存储库

我正在用Spring、Hibernate和MySQL数据库创建一个简单的应用程序。我做了一些研究，但没有一个答案是准确的。我有一个存储库接口，它是BaseCrudRepository的扩展，它扩展了ReadOnlyRepository，它是org.springframework.data.repository.repository的扩展。 代码如下：

package dziecko.repositories;

import dziecko.models.AreaDate;
import dziecko.utils.BaseCrudRepository;

public interface AreaDateRepository extends BaseCrudRepository<AreaDate, Integer> {}

java.lang.AssertionError:预期对象不为null

所有实体都是在数据库中创建的。我就是不知道如何正确配置这些Spring存储库。每件事似乎都是这样做的。有人知道如何在这里修复自动布线吗？

所以我在WEB-INF文件夹中有app-context.xml文件，我没有将此上下文附加到测试中。工作版本：

@ContextConfiguration("/META-INF/app-context.xml")
public class SpringConfigurationTest extends AbstractTestNGSpringContextTests {

    @Autowired
    private AreaDateRepository adRepo;

    @Test
    public void shouldWireComponents() {
        Assert.assertNotNull(adRepo);
    }

}

---

发生这种情况是因为您的测试类没有Spring意识。您需要：

通过Maven依赖项或其他方式将jar包含在（测试）类路径中

从您的测试中，我可以看到您正在使用TestNG，因此上面的jar将为您提供TestNG Spring测试运行程序：

用（假设您没有测试上下文。顺便说一句，这将是一个更好的实践）注释您的类：

@ContextConfiguration（位置={“classpath:app context.xml”}）
公共类SpringConfigurationTest扩展了AbstractTestNGSpringContextTests
{
//...
}

您从未在单元测试中创建任何Spring上下文，也没有使用Spring测试运行程序运行测试。Spring如何在测试中自动连接bean？多谢阅读。我不知道我期望的是什么，但我已经花了很多时间在其他地方寻找原因……非常感谢。我将为测试创建上下文。

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/app-context.xml</param-value>
    </context-param>

    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:beans="http://www.springframework.org/schema/beans" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">

    <!-- Enable @Controller annotation support -->
    <mvc:annotation-driven />

    <jpa:repositories base-package="dziecko.repositories" />

    <context:annotation-config />
    <!-- Scan classpath for annotations (eg: @Service, @Repository etc) -->
    <context:component-scan base-package="dziecko.rests, dziecko.services">
        <context:exclude-filter expression="org.springframework.web.bind.annotation.RestController" type="annotation" />
    </context:component-scan>

    <!-- JDBC Data Source. -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/dziecko" />
        <property name="username" value="root" />
        <property name="password" value="" />
        <property name="validationQuery" value="SELECT 1" />
    </bean>

    <!-- Hibernate Session Factory -->
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="jpaVendorAdapter">
         <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
        </property>
        <property name="packagesToScan">
            <array>
                <value>dziecko.models</value>
            </array>
        </property>
        <property name="jpaProperties">
            <props>
                <prop key="hibernate.hbm2ddl.auto">create</prop>
                <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
                <prop key="hibernate.connection.charSet">UTF-8</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="jadira.usertype.autoRegisterUserTypes">true</prop>
                <prop key="jadira.usertype.databaseZone">jvm</prop>
                <prop key="hibernate.id.new_generator_mappings">true</prop>
            </props>
        </property>
    </bean>

    <!-- Hibernate Transaction Manager -->
    <bean id="transactionManager"
        class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>

    <!-- Activates annotation based transaction management -->
    <tx:annotation-driven transaction-manager="transactionManager" />
</beans>

package dziecko.tests;

import org.springframework.beans.factory.annotation.Autowired;
import org.testng.Assert;
import org.testng.annotations.Test;

import dziecko.repositories.AreaDateRepository;

public class SpringConfigurationTest {

    @Autowired
    private AreaDateRepository adRepo;

    @Test
    public void shouldWireComponents() {
        Assert.assertNotNull(adRepo);
    }
}

@ContextConfiguration("/META-INF/app-context.xml")
public class SpringConfigurationTest extends AbstractTestNGSpringContextTests {

    @Autowired
    private AreaDateRepository adRepo;

    @Test
    public void shouldWireComponents() {
        Assert.assertNotNull(adRepo);
    }

}