Spring Boot 应用程序执行器端点被注册但请求仍然失败

Question

我有一个带有以下启动代码的 Spring 启动应用程序。Actuator 端点被映射，bean 被移除。我看到执行器端点已注册，然后 bean 被移除。通过SO 线程，这些消息是无害的。但是当我尝试到达任何执行器终点时，我收到错误消息。我不确定我应该进一步研究什么才能使执行器工作。我附上了我提到的所有日志片段。

我用 maven 设置了项目：

Maven Spring Actuator 部分

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-actuator</artifactId>
    </dependency>

Java启动代码

@EnableAutoConfiguration(exclude = { MetricFilterAutoConfiguration.class, MetricRepositoryAutoConfiguration.class, MessageSourceAutoConfiguration.class })
@EnableConfigurationProperties({ MyAppProperties.class })
@SpringBootApplication
public class MyApp{
    private static final Logger LOG = LoggerFactory.getLogger(MyApp.class);
    public static void main(String[] args) throws UnknownHostException {
        SpringApplication app = new SpringApplication(MyApp.class);
        Environment env = app.run(args).getEnvironment();
        LOG.info("\n----------------------------------------------------------\n\t" +
                "Application '{}' is running! Access URLs:\n\t" +
                "Local: \t\thttp://localhost:{}\n\t" +
                "External: \thttp://{}:{}\n----------------------------------------------------------",
            env.getProperty("spring.application.name"),
            env.getProperty("server.port"),
            InetAddress.getLocalHost().getHostAddress(),
            env.getProperty("server.port"));
}
}

执行器根据 DEBUG 模式下的日志启动端点：

2017-03-17 11:19:29.378  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/info || /info.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-03-17 11:19:29.379 DEBUG 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : 1 request handler methods found on class org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint: {public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException={[],methods=[GET],produces=[application/octet-stream]}}
2017-03-17 11:19:29.379  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/heapdump || /heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-03-17 11:19:29.380 DEBUG 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : 1 request handler methods found on class org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter: {public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()={[],methods=[GET],produces=[application/json]}}
2017-03-17 11:19:29.380  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/trace || /trace.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-03-17 11:19:29.384 DEBUG 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : 2 request handler methods found on class org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint: {public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)={[/{name:.*}],methods=[GET],produces=[application/json]}, public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()={[],methods=[GET],produces=[application/json]}}
2017-03-17 11:19:29.384  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/metrics/{name:.*}],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2017-03-17 11:19:29.384  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/metrics || /metrics.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-03-17 11:19:29.384 DEBUG 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : 1 request handler methods found on class org.springframework.cloud.context.restart.RestartMvcEndpoint: {public java.lang.Object org.springframework.cloud.context.restart.RestartMvcEndpoint.invoke()={[],methods=[POST]}}
2017-03-17 11:19:29.384  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/restart || /restart.json],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.context.restart.RestartMvcEndpoint.invoke()
2017-03-17 11:19:29.386  INFO 17855 --- [           main] o.s.b.a.e.mvc.EndpointHandlerMapping     : Mapped "{[/beans || /beans.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-03-17 11:19:29.386 DEBUG 17855 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Finished creating instance of bean 'endpointHandlerMapping'
2017-03-17 11:19:29.386 DEBUG 17855 --- [           main] f.a.AutowiredAnnotationBeanPostProcessor : Autowiring by type from bean name 'org.springframework.boot.actuate.autoconfigure.EndpointWebMvcChildContextConfiguration$EndpointHandlerMappingConfiguration' to bean named 'mvcEndpoints'

最终我在日志中看到 bean 被删除了：

2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'endpointHandlerMapping': no URL paths identified
2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'mvcEndpoints': no URL paths identified
2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'environmentMvcEndpoint': no URL paths identified
2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'heapdumpMvcEndpoint': no URL paths identified
2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'healthMvcEndpoint': no URL paths identified
2017-03-17 11:19:29.415 DEBUG 17855 --- [           main] o.s.w.s.h.BeanNameUrlHandlerMapping      : Rejected bean name 'metricsMvcEndpoint': no URL paths identified

当我请求/info或/health访问info和health 时，我被定向到白标错误页面，因为没有找到处理程序。

调试调度程序 servlet 后，我​​看到有 7 个处理程序，我希望找到/infoin的映射BeanNameUrlHandlerMapping。

org.springframework.web.servlet.handler.SimpleUrlHandlerMapping
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping 
org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping    
org.springframework.web.servlet.handler.SimpleUrlHandlerMapping 
org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping 
org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping
org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WelcomePageHandlerMapping 

由于列表中的第一个映射是SimpleUrlHandlerMapping，它立即返回“无处理程序映射”，这将我带到错误页面。我尝试检查订单是否重要并BeanNameUrlHandlerMapping查看它是否返回处理程序映射并且没有返回任何。所以我怀疑之前删除 bean 的调试消息是导致问题的罪魁祸首。

有人可以建议我是否需要特别研究什么。

Answer 1

根据入门指南：使用 Spring Boot Actuator 构建 RESTful Web 服务，您应该使用spring-boot-starter-actuator启动器：

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

而不是spring-boot-actuator依赖。

另请注意，根据Spring Boot 参考：

HealthIndicators 返回的信息本质上通常有些敏感。例如，您可能不想向全世界发布您的数据库服务器的详细信息。因此，默认情况下，未经身份验证的 HTTP 连接仅公开健康状态。如果您希望始终公开完整的健康信息，您可以设置endpoints.health.sensitive为false。