我有一个非常简单的存储库测试，当我使用JUnit的4“
@RunWith（SpringRunner.Class）”时，它运行得很好。当我尝试使用提供的示例中的“
@ExtendWith”时，尝试使用存储库时出现NullPointerException。使用后一个注释时，似乎“
@Autowire”没有注入存储库。这是pom.xml文件和堆栈跟踪：https :
//pastebin.com/4KSsgLfb

实体类别：

package org.tim.entities;

import lombok.AccessLevel;
import lombok.Data;
import lombok.NonNull;
import lombok.Setter;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.validation.constraints.NotNull;

@Entity
@Data
public class ExampleEntity {

@Id
@Setter(AccessLevel.NONE)
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@NotNull
@NonNull
private String name;

}

储存库类别：

package org.tim.repositories;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import org.tim.entities.ExampleEntity;

@Repository
public interface ExampleRepository extends JpaRepository<ExampleEntity, Long> {
}

测试类别：

package org.tim;

import org.junit.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.tim.entities.ExampleEntity;
import org.tim.repositories.ExampleRepository;


@ExtendWith(SpringExtension.class)
@DataJpaTest
public class exampleTestClass {

@Autowired
private ExampleRepository exampleRepository;

@Test
public void exampleTest() {
    exampleRepository.save(new ExampleEntity("name"));
}
}