无法在Spring Boot测试类中模拟jdbcTemplate

Question

我正在使用Spring boot和Mockito进行测试。我已经能够为服务层编写测试用例，它们工作得很好。但是，针对DAO层的测试用例却没有。在执行测试用例时，被mocked和autowired的jdbctemplate对象提供null指针。以下是详细情况：

我的DAOTest类：

@RunWith(SpringRunner.class)
@SpringBootTest(classes = EcommerceApplication.class)
public classEcommerceDaoTest {

@InjectMocks
private IEcommerceDao ecommerceDao = new EcommerceDaoImpl();

@Mock
@Autowired
private JdbcTemplate as400JdbcTemplate;

@Before
public void setUp() throws Exception 
{
    MockitoAnnotations.initMocks(this);

}

@Test
public void checkOrderExistsTest() throws EcommerceException{
    Mockito.when(as400JdbcTemplate.queryForObject(queryForOrder,new Object[]
{"1000"}, int.class)).thenReturn(1);
    boolean exists = 
 ecommerceDao.checkOrderExists("1000");
    assertTrue(exists);
}
}

java：

@Override
public boolean checkOrderExists(String orderNo)throws EcommerceException{
boolean doesExist = false;
    int count = 0;
    try{
        count= as400JdbcTemplate.queryForObject(queryForOrder, new Object[]{orderNo}, int.class);
if(count >0){
doesExist = true;
}
    }
catch(Exception e){
}
return doesExist;
}

    @Bean
    @Autowired
    public JdbcTemplate as400JdbcTemplate(@Qualifier("as400DataSource")DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

@SpringBootApplication(exclude = { DataSourceAutoConfiguration.class, 
HibernateJpaAutoConfiguration.class,
    DataSourceTransactionManagerAutoConfiguration.class })
@EnableTransactionManagement
@Import(As400Configuration.class)
public class EcommerceApplication {

public static void main(String[] args) {
    SpringApplication.run(EcommerceApplication.class, args);
}
}

Answer 1

>

不需要同时使用@mock和@autowired。仅使用@mock:

@mock private JdbcTemplate as400jdbctemplate；

使用代替@runwith(Springrunner.class)-->@runwith(MockitoJunitrunner.class)

@Before
public void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    ReflectionTestUtils.setField(ecommerceDao ,"as400JdbcTemplate" , 
      as400JdbcTemplate);

}

@Mock
    private JdbcTemplate as400JdbcTemplate;