Question

我有现有的Spring MVC Web应用程序。现在我只想使用spring-boot-starter-actuator中的健康检查功能。

我是Spring Boot的新手，所以不确定我是否需要将我的完整项目转换为spring boot项目以进行运行状况检查。我可以只包含依赖项，并以某种方式仅启用所需的功能吗？

Answer 1

我自己想通了。而不是spring-boot-starter-actuator我包括spring-boot-actuator。我不需要使用@SpringBootApplication初始化应用程序。相反，现在我只导入所需的auto-config类。所以config类现在看起来像这个

@Configuration
@ComponentScan(basePackages = { "org.example" })
@Import({MyApplicationContext.class, EndpointWebMvcAutoConfiguration.class, 
  ManagementServerPropertiesAutoConfiguration.class, EndpointAutoConfiguration.class, 
  HealthIndicatorAutoConfiguration.class})
@PropertySource("classpath:app.properties")
@EnableWebMvc
public class MyWebApplicationContext {
...
}

EndpointWebMvcAutoConfiguration取决于ManagementServerProperties因此必须导入它。这似乎是我的最低配置。如果有更好的选择，请告诉我

Answer 2

首先，我想告诉sidgate's answer是正确的。但也许有人需要启用所有指标或选择不同的指标集。

您仍然可以使用spring-boot-starter-actuator代替spring-boot-actuator

启用所有指标

@org.springframework.context.annotation.Configuration
@org.springframework.boot.autoconfigure.EnableAutoConfiguration
@org.springframework.boot.actuate.autoconfigure.ManagementContextConfiguration
public class MyApplicationContext {
}

其中@EnableAutoConfiguration

org.springframework.boot.actuate.autoconfigure.AuditAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.CacheStatisticsAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.CrshAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.EndpointAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.EndpointMBeanExportAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.HealthIndicatorAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.InfoContributorAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.JolokiaAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.ManagementServerPropertiesAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.ManagementWebSecurityAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.MetricFilterAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.MetricRepositoryAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.MetricsDropwizardAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.MetricsChannelAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.MetricExportAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.PublicMetricsAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.TraceRepositoryAutoConfiguration,
org.springframework.boot.actuate.autoconfigure.TraceWebFilterAutoConfiguration.class

和@ManagementContextConfiguration

org.springframework.boot.actuate.autoconfigure.EndpointWebMvcManagementContextConfiguration,
org.springframework.boot.actuate.autoconfigure.EndpointWebMvcHypermediaManagementContextConfiguration

启用Spring Boot配置

启用某些管理端点，您可以直接导入端点的配置，因为sidgate已经解释过

@Configuration
@Import({
org.springframework.boot.actuate.autoconfigure.AuditAutoConfiguration.class,
org.springframework.boot.actuate.autoconfigure.CacheStatisticsAutoConfiguration.class,

...

})
public class MyApplicationContext {
}

P.S。当然，可以通过注释或xml配置来配置Spring Application Context和Properties初始化。

Answer 3

如果 smb 在现有的 Spring MVC 项目中寻找 Spring Boot Actuator 2.x 的配置，这是一个对我有用的配置

@Configuration
@Import({
        EndpointAutoConfiguration.class,
        HealthIndicatorAutoConfiguration.class,

        InfoEndpointAutoConfiguration.class,
        HealthEndpointAutoConfiguration.class,

        WebEndpointAutoConfiguration.class,
        ServletManagementContextAutoConfiguration.class,
        ManagementContextAutoConfiguration.class,
})
@EnableConfigurationProperties(CorsEndpointProperties.class)
class ActuatorConfiguration {

    @Bean //taken from WebMvcEndpointManagementContextConfiguration.class
    public WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(WebEndpointsSupplier webEndpointsSupplier,
                                                                         ServletEndpointsSupplier servletEndpointsSupplier, ControllerEndpointsSupplier controllerEndpointsSupplier,
                                                                         EndpointMediaTypes endpointMediaTypes, CorsEndpointProperties corsProperties,
                                                                         WebEndpointProperties webEndpointProperties) {
        List<ExposableEndpoint<?>> allEndpoints = new ArrayList<>();
        Collection<ExposableWebEndpoint> webEndpoints = webEndpointsSupplier.getEndpoints();
        allEndpoints.addAll(webEndpoints);
        allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());
        allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());
        EndpointMapping endpointMapping = new EndpointMapping(webEndpointProperties.getBasePath());
        return new WebMvcEndpointHandlerMapping(endpointMapping, webEndpoints, endpointMediaTypes,
                corsProperties.toCorsConfiguration(),
                new EndpointLinksResolver(allEndpoints, webEndpointProperties.getBasePath()));
    }

    @Bean
    DispatcherServletPath dispatcherServletPath() {
        return () -> "/";
    }

}

我确实包括了

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-actuator-autoconfigure</artifactId>
        <version>2.1.18.RELEASE</version>
    </dependency>

为了与我一直使用的基线 Spring 版本 (5.1.19.RELEASE) 兼容

现有webapp上的Spring启动运行状况检查

3 个答案: