【发布时间】:2015-09-29 14:58:11
【问题描述】:
我在同一台机器上使用 Vertx 集群(开发模式)。 我也在使用 guice 来注入一些 pojo。
但是,当我尝试增加 Verticle 实例时,我得到:
java.lang.IllegalArgumentException: Can't specify > 1 instances for already created verticle
at io.vertx.core.impl.DeploymentManager.deployVerticle(DeploymentManager.java:70)
at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:516)
at io.vertx.core.impl.VertxImpl.deployVerticle(VertxImpl.java:511)
at com.mycompany.world_map_service.web.starter.StarterVerticle.lambda$main$0(StarterVerticle.java:39)
这是我的配置方式:
public static void main(String[] args) throws Exception {
final Logger logger = Logger.getLogger(StarterVerticle.class);
ClusterManager mgr = new HazelcastClusterManager();
VertxOptions options = new VertxOptions().setClusterManager(mgr);
Vertx.clusteredVertx(options, res -> {
DeploymentOptions deploymentOptions = new DeploymentOptions().setConfig(config);
if (res.succeeded()) {
Vertx vertx = res.result();
// Injector injector = Guice.createInjector(new AppInjector(vertx));
Injector injector = Guice.createInjector(new AppInjector(vertx, deploymentOptions));
vertx.deployVerticle(injector.getInstance(VertxHttpServerVerticle.class), deploymentOptions.setInstances(3));
...
}
那是我的 AppInjector 类:
public class AppInjector extends AbstractModule {
private Vertx vertx = null;
private Context context = null;
DeploymentOptions deploymentOptions = null;
public AppInjector(Vertx vertx, DeploymentOptions deploymentOptions) {
this.vertx = vertx;
this.context = vertx.getOrCreateContext();
this.deploymentOptions = deploymentOptions;
}
@Override
protected void configure() {
bind(LocationService.class).to(LocationServiceImpl.class).in(Singleton.class);
bind(LocationServiceDAO.class).to(LocationServiceDaoImpl.class).in(Singleton.class);
bind(RedisRepo.class).toProvider(() -> {
return new RedisRepo(deploymentOptions.getConfig());
});
bind(Neo4jRepo.class).toProvider(() -> {
return new Neo4jRepo(deploymentOptions.getConfig());
});
}
}
知道我为什么会发生碰撞吗?
我知道我应该按名称使用:com.mycompany.world_map_service.web.http.VertxHttpServerVerticle,但如果我注入依赖项,它们将为每个实例重复,不是吗?
【问题讨论】: