无法使用spring boot运行r2dbc的测试

Question

我按照这个链接用spring数据实现R2DBC。该项目有巨大的POM，因为它演示了其他功能。所以我尽量只拥有spring boot和R2DBC与H2的依赖关系。

我的歌词是：

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <!--For testing-->
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <version>1.4.199</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- junit 5 -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <scope>test</scope>
        </dependency>

        <!--For reactive-->
        <dependency>
            <groupId>io.r2dbc</groupId>
            <artifactId>r2dbc-h2</artifactId>
            <version>0.8.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-r2dbc</artifactId>
            <version>1.0.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-core</artifactId>
        </dependency>
        <!---->
<dependencies>      

然后我将存储库定义为：

public interface ReactiveFeatureRepository extends ReactiveCrudRepository<Feature, UUID> {
}

功能是实体类。

我已经在src/test/resources的application.properties中配置了h2:

spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
spring.datasource.username=sa
spring.datasource.password=sa

在测试中：

@ExtendWith(SpringExtension.class)
@SpringBootTest
public class ReactiveFeatureRepositoryTest {

    @Autowired
    ReactiveFeatureRepository rfr;

    @Autowired
    DatabaseClient client;

    @Autowired
    H2ConnectionFactory factory;
...
...
}

但是当我尝试运行测试时，我得到了大量的日志，其中列出了“Poitive 匹配”和“负匹配”，最后：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 
'x.y.z.ReactiveFeatureRepositoryTest': Unsatisfied dependency expressed 
through field 'rfr'; nested exception is 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 
'x.y.z.ReactiveFeatureRepository' available: expected at least 1 bean which 
qualifies as autowire candidate. Dependency annotations: 
{@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at 

与示例项目相比，我缺少什么？

Answer 1

对于Spring Data R2dbc，db连接配置前缀为Spring.R2dbc。

在这里查看我的示例

如果类路径中有 H2 R2dbc 驱动程序，则可以忽略 H2/R2dbc 配置。

有一个为H2测试存储库的例子。

对于其他数据库支持和使用TestContainers编写测试代码，请查看此存储库中的其他r2dbc示例。

更新：有一个新的R2dbc示例项目，它演示了Spring Boot 2.4/Spring Data R2dbc/Spring 5.3 R2dbc模块中的R2dbc特性。