I am trying to connect to Google Spanner with java using spring boot. I wan't to read something from database and send it with web socket. Currently I have:
@Configuration
@EnableScheduling
@SpringBootApplication
@EnableWebSocketMessageBroker
public class SpannerServiceApplication extends AbstractWebSocketMessageBrokerConfigurer {
public static void main(String[] args) {
SpringApplication.run(SpannerServiceApplication.class, args);
}
@Bean
public DatabaseClient spannerDatabase(){
SpannerOptions options = SpannerOptions.newBuilder().setProjectId("p").build();
Spanner spanner = options.getService();
return spanner.getDatabaseClient(DatabaseId.of(options.getProjectId(), "test123", "test"));
}
@Override
public void configureMessageBroker(MessageBrokerRegistry config) {
config.enableSimpleBroker("/topic");
config.setApplicationDestinationPrefixes("/app");
}
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/backend").setAllowedOrigins("*").withSockJS();
}
}
and pom:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-quartz</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud</artifactId>
<version>0.22.0-alpha</version>
</dependency>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud-spanner</artifactId>
<version>0.20.0-beta</version>
</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>
</dependencies>
Switch to Jetty and netty-tcnative-boringssl-static did not help. My error:
Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.0.0.BUILD-SNAPSHOT:run (default-cli) on project SpannerService: An exception occurred while running. null: InvocationTargetException: Error creating bean with name 'spannerDataba
se' defined in com.SpannerService.SpannerServiceApplication: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.google.cloud.spanner.DatabaseClient]: Factory met
hod 'spannerDatabase' threw exception; nested exception is java.lang.IllegalArgumentException: Jetty ALPN/NPN has not been properly configured. -> [Help 1]
Spring boot 2.0, Java 1.8, Tomcat 8.5.16 What's wrong? Thank you!
