Question

我正在尝试将Spring WebFlux（春季启动版本2.0.6）与datastax Cassandra DSE3.x连接。但是，当我尝试使用带有自定义查询的ReactiveCassandraRepository查询Cassandra表时，出现以下错误。但是我可以从该表中获取记录的数量。

本机协议V1不支持的功能（当前正在使用）：不支持二进制值；默认值为0。嵌套的异常是com.datastax.driver.core.exceptions.UnsupportedFeatureException：本机协议V1不支持的功能（当前正在使用）：不支持二进制值“

我的存储库代码为

public interface SystemLookupReactiveRepository extends ReactiveCrudRepository<SystemLookup, String> {

@AllowFiltering
@Query("{SELECT * FROM \"SystemLookup\" WHERE LookupId = ?0 ALLOW FILTERING}")
Mono<SystemLookup> findByLookupId(String lookupId);}

我的POM文件是：

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-cassandra-reactive</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-webflux</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>spring-boot-starter-reactor-netty</artifactId>
                <groupId>org.springframework.boot</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.projectreactor</groupId>
        <artifactId>reactor-test</artifactId>
        <scope>test</scope>
    </dependency>

无法使用Spring WebFlux和ReactiveCassandraRepository编写自定义查询

0 个答案: