Question

我想测试一个通常使用SpringApplication.run（）调用的@Service类。

服务类是：

@Service
@EnableConfigurationProperties(AppProperties.class)
public class MongoService {

    private static final Logger logger = LoggerFactory.getLogger(MongoService.class);

    private MongoClient mongoClient;

    private final AppProperties properties;

    @Autowired
    public MongoService(AppProperties properties) {
        this.properties = properties;
    }

    /**
     * Open connection
     */
    public void openConnection() {

        try {
            mongoClient = new MongoClient(new MongoClientURI(properties.getMongoConnectionString()));
        } catch (Exception e) {
            logger.error("Cannot create connection to Search&Browse database", e);
            throw new BackendException("Cannot create connection to Search&Browse database");
        }
    }

}

当由SpringApplication.run（）启动的控制器调用它时，MongoService不为null，但是当我从jUnit尝试它时它不起作用。

所以，我正在尝试这个：

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = AppProperties.class)
public class MongoServiceTest {

    private static final Logger logger = LoggerFactory.getLogger(MongoServiceTest.class);

    @Autowired
    MongoService mongoService;

    @Test
    public void MongoServiceAutowired() {   
        assertNotNull(mongoService);
    }
}

但我得到了这个例外：

org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'mypackage.MongoServiceTest'的bean时出错：通过字段'mongoService'表示的不满意的依赖关系;嵌套异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：没有'mypackage.services.mongo.MongoService'类型的限定bean可用：预期至少有1个bean可以作为autowire候选者。依赖注释：{@ org.springframework.beans.factory.annotation.Autowired（required = true）}

有任何线索吗？我在哪里失败？

Answer 1

我认为您的AppProperties和MongoService不在同一个包

中

如果没有，你可以这样注入MongoService：

创建另一个名为TestConfiguration

的类

@ComponentScan(basePackageClasses = {
        MongoService.class,
        AppProperties.class
})
@SpringBootApplication
public class TestConfiguration {
    public static void main(String[] args) {
        SpringApplication.run(TestConfiguration.class, args);
    }
}

在测试中只需更改为：

@RunWith(SpringRunner.class)
@SpringBootTest(classes = TestConfiguration.class) 
public class MongoServiceTest {

    private static final Logger logger = LoggerFactory.getLogger(MongoServiceTest.class);

    @Autowired
    MongoService mongoService;

    @Test
    public void MongoServiceAutowired() {   
        assertNotNull(mongoService);
    }
}

测试spring-boot @service class

1 个答案: