Hazelcast客户端在Spring Boot应用程序中的测试

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英文:

Hazelcast client testing in spring boot application

问题

您的问题似乎与Hazelcast客户端连接问题有关。当运行Spring Boot测试时，嵌入式Tomcat启动失败，因为没有运行集群，所以客户端无法连接。

要在这种情况下运行您的测试，您可以考虑以下几种解决方法：

  1. 模拟Hazelcast集群：在测试环境中模拟一个Hazelcast集群，以便您的应用程序可以成功启动。您可以使用Hazelcast的TestContainer库来实现这一点。

  2. 使用条件加载：您可以使用Spring的@Profile或@Conditional注解，根据是否在测试环境中运行来加载Hazelcast相关的配置。这样，您可以在测试时禁用Hazelcast连接。

  3. 在测试中模拟Hazelcast连接：您可以创建一个模拟Hazelcast连接的实现，并在测试中使用它，以便您的应用程序可以成功启动。这可以通过使用模拟框架（例如Mockito）来实现。

请根据您的需求和测试策略选择适当的解决方案。如果您需要更多详细信息或有其他问题，请随时提问。

英文:

we have a springboot app running with hazelcast-client 3.12.6.
the hazelcast server is not embedded we are running that externally and connecting with the hazelcast client.

The problem is when spring boot tests are running the embedded tomcat startup if failing because there is no cluster running so the client is unable to connect.

Below is the Test class code.

@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class ApplicationStartTest {

  @Test
  void contextLoads() {
  }
}

we are configuring our hazlecast client with below mentioned beans

  @Bean
  public ClientConfig hazelcastConfig() {
    ClientConfig config = new ClientConfig();
    String[] addresses = hazelCastEndPoints.split(",");
    ClientNetworkConfig networkConfig = config.getNetworkConfig();
    networkConfig.addAddress(addresses);
    networkConfig.setSmartRouting(false);
    networkConfig.setRedoOperation(true);
    networkConfig.setConnectionTimeout(30000);
    Timestamp timestamp = new Timestamp(System.currentTimeMillis());
    config.setInstanceName(applicationName + timestamp.toString());
//    HazelcastClient.newHazelcastClient(config);
    return config;
  }

  @Bean
  public HazelcastInstance hazelcastInstance(ClientConfig config) {
    return HazelcastClient.newHazelcastClient(config);
  }

Error log while running test:

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cachesEndpoint' defined in class path resource [org/springframework/boot/actuate/autoconfigure/cache/CachesEndpointAutoConfiguration.class]: Unsatisfied dependency expressed through method 'cachesEndpoint' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cacheManager' defined in class path resource [org/springframework/boot/autoconfigure/cache/HazelcastCacheConfiguration.class]: Unsatisfied dependency expressed through method 'cacheManager' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hazelcastInstance' defined in class path resource [com/scb/rpbwm/account/SingaporeConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.hazelcast.core.HazelcastInstance]: Factory method 'hazelcastInstance' threw exception; nested exception is java.lang.IllegalStateException: Unable to connect to any cluster.
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651)
... 142 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cachesEndpoint' defined in class path resource [org/springframework/boot/actuate/autoconfigure/cache/CachesEndpointAutoConfiguration.class]: Unsatisfied dependency expressed through method 'cachesEndpoint' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cacheManager' defined in class path resource [org/springframework/boot/autoconfigure/cache/HazelcastCacheConfiguration.class]: Unsatisfied dependency expressed through method 'cacheManager' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hazelcastInstance' defined in class path resource [com/scb/rpbwm/account/SingaporeConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.hazelcast.core.HazelcastInstance]: Factory method 'hazelcastInstance' threw exception; nested exception is java.lang.IllegalStateException: Unable to connect to any cluster.
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1108)
at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBean(EndpointDiscoverer.java:143)
at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBeans(EndpointDiscoverer.java:133)
at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.discoverEndpoints(EndpointDiscoverer.java:122)
at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.getEndpoints(EndpointDiscoverer.java:116)
at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.servletEndpointRegistrar(ServletEndpointManagementContextConfiguration.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 143 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cacheManager' defined in class path resource [org/springframework/boot/autoconfigure/cache/HazelcastCacheConfiguration.class]: Unsatisfied dependency expressed through method 'cacheManager' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hazelcastInstance' defined in class path resource [com/scb/rpbwm/account/SingaporeConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.hazelcast.core.HazelcastInstance]: Factory method 'hazelcastInstance' threw exception; nested exception is java.lang.IllegalStateException: Unable to connect to any cluster.
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1503)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1467)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1386)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1245)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
... 163 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hazelcastInstance' defined in class path resource [com/scb/rpbwm/account/SingaporeConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.hazelcast.core.HazelcastInstance]: Factory method 'hazelcastInstance' threw exception; nested exception is java.lang.IllegalStateException: Unable to connect to any cluster.
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
... 180 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.hazelcast.core.HazelcastInstance]: Factory method 'hazelcastInstance' threw exception; nested exception is java.lang.IllegalStateException: Unable to connect to any cluster.
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651)
... 194 more
Caused by: java.lang.IllegalStateException: Unable to connect to any cluster.
at com.hazelcast.client.connection.nio.ClusterConnectorServiceImpl.connectToClusterInternal(ClusterConnectorServiceImpl.java:214)
at com.hazelcast.client.connection.nio.ClusterConnectorServiceImpl.access$000(ClusterConnectorServiceImpl.java:62)
at com.hazelcast.client.connection.nio.ClusterConnectorServiceImpl$1.call(ClusterConnectorServiceImpl.java:279)
at com.hazelcast.client.connection.nio.ClusterConnectorServiceImpl$1.call(ClusterConnectorServiceImpl.java:275)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80)

it would be very helpful if you can point me how to run my test in this scenario.

答案1

得分: 2

如果你只想进行一个简单的单元测试，那么你可以始终模拟 HazeclastInstance。

然而，如果你想创建一个集成测试（或端到端测试），那么你应该首先启动Hazelcast服务器，然后Hazelcast客户端可以连接到它。这里有一个示例，如何使用 @SpringBootTest 进行操作。

英文:

If you want just a simple unit test, then you can always mock HazeclastInstance.

However, if you want to create an integration (or E2E) test, then you should start Hazelcast server first and then Hazelcast Client can connect to it. Here is an example how to do it using @SpringBootTest

huangapple
  • 本文由 发表于 2020年7月23日 04:00:39
  • 转载请务必保留本文链接：https://go.coder-hub.com/63042268.html
  • hazelcast
  • java
  • spring-boot
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