TestNG +春季測試：EntityManager使用testng返回null

Question

我是testng框架的新手。從junit遷移到testng時，entityManager返回null值。它對我來說很奇怪，任何人都可以發現我的錯誤。 在這里我放置了代碼片段。謝謝。

實體

@Entity
@Table(name = "school")
public class School {
    private Integer id;
    private String schoolName;
    private String address;

    getters and setters here
}

測試班

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath*:/applicationContext.xml" })
@Transactional
public class SchoolTest {

@PersistenceContext
private EntityManager entityManager;

String address,schoolName; 


@BeforeClass
public void init() {
    address = "chinna kadai st";
    schoolName = "SVM School";
}
@Test
public void save_school() {
    School school = new School();
    school.setAddress(address);
    school.setSchoolName(schoolName);
    entityManager.persist(school);
}
}

上面的代碼在使用Junit運行良好

Answer 1

而不是使用@RunWith（SpringJUnit4ClassRunner.class），您需要從AbstractTransactionalTestNGSpringContextTests擴展您的測試類

在Spring Reference docs中閱讀更多信息。