Imprimez tous les haricots de printemps chargés

Existe-t-il un moyen d'imprimer tous les beans de printemps chargés au démarrage? J'utilise Spring 2.0.

Oui, attends ApplicationContextet appelle.getBeanDefinitionNames()

Vous pouvez obtenir le contexte en:

• exécution ApplicationContextAware
• l'injecter avec @Inject/ @Autowired(après 2,5)
• utilisation WebApplicationContextUtils.getRequiredWebApplicationContext(..)

Related: Vous pouvez également détecter l'enregistrement de chaque bean en enregistrant un BeanPostprocessorbean. Il sera notifié pour chaque grain.

public class PrintBeans {
    @Autowired
    ApplicationContext applicationContext;

    public void printBeans() {
        System.out.println(Arrays.asList(applicationContext.getBeanDefinitionNames()));
    }
}

Imprimez tous les noms de bean et ses classes:

package com.javahash.spring.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class HelloWorldController {

    @Autowired
    private ApplicationContext applicationContext;

    @RequestMapping("/hello")
    public String hello(@RequestParam(value="key", required=false, defaultValue="World") String name, Model model) {

        String[] beanNames = applicationContext.getBeanDefinitionNames();

        for (String beanName : beanNames) {

            System.out.println(beanName + " : " + applicationContext.getBean(beanName).getClass().toString());
        }

        model.addAttribute("name", name);

        return "helloworld";
    }
}

Avec Spring Boot et le démarreur de l'actionneur

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

vous pouvez vérifier le point de terminaison /beans

applicationContext.getBeanDefinitionNames () ne pas montrer les haricots qui sont enregistrés sans exemple BeanDefinition.

package io.velu.core;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@ComponentScan
public class Core {

public static void main(String[] args) {
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Core.class);
    String[] singletonNames = context.getDefaultListableBeanFactory().getSingletonNames();
    for (String singleton : singletonNames) {
        System.out.println(singleton);
    }       
}

}

Sortie de la console

environment
systemProperties
systemEnvironment
org.springframework.context.annotation.internalConfigurationAnnotationProcessor
org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry
org.springframework.context.event.internalEventListenerProcessor
org.springframework.context.event.internalEventListenerFactory
org.springframework.context.annotation.internalAutowiredAnnotationProcessor
org.springframework.context.annotation.internalCommonAnnotationProcessor
messageSource
applicationEventMulticaster
lifecycleProcessor

Comme vous pouvez le voir dans la sortie, les beans environment, systemProperties et systemEnvironment ne seront pas affichés à l'aide de la méthode context.getBeanDefinitionNames () .

Botte de printemps

Pour les applications Web Spring Boot, tous les beans peuvent être répertoriés à l'aide du point de terminaison ci-dessous.

@RestController
@RequestMapping("/list")
class ExportController {

@Autowired
private ApplicationContext applicationContext;

@GetMapping("/beans")
@ResponseStatus(value = HttpStatus.OK)
String[] registeredBeans() {
    return printBeans();
}

private String[] printBeans() {
    AutowireCapableBeanFactory autowireCapableBeanFactory = applicationContext.getAutowireCapableBeanFactory();
    if (autowireCapableBeanFactory instanceof SingletonBeanRegistry) {
        String[] singletonNames = ((SingletonBeanRegistry) autowireCapableBeanFactory).getSingletonNames();
        for (String singleton : singletonNames) {
            System.out.println(singleton);
        }
        return singletonNames;
    }
    return null;
}

}

["autoConfigurationReport", "springApplicationArguments", "springBootBanner", "springBootLoggingSystem", "environment", "systemProperties", "systemEnvironment", "org.springframework.context.annotation.internalConfigurationAnnotationProcessor". internalCachingMetadataReaderFactory "," org.springframework.boot.autoconfigure.condition.BeanTypeRegistry "," org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry "," propertySourcesPlaceproperties.ConfigurationProcesseur "," propertySourcesPlaceproperties.ConfigurationProcesseur "," propertySourcesPlaceproperties.ConfigurationProcesseur "," propertySourcesPlaceproperties.ConfigurationProcesseur "," propertySourcesPlaceproperties.ConfigurationProcesseur "," propertySourcesPlaceroperties.Configuration. , "préserverErrorControllerTargetClassPostProcessor "," org.springframework.context.annotation.internalAutowiredAnnotationProcessor "," org.springframework.context.annotation.internalRequiredAnnotationProcessor "," org.springframework.Processor "," org.springframe.Processor.Processeur. ConfigurationPropertiesBindingPostProcessor "," org.springframework.scheduling.annotation.ProxyAsyncConfiguration "," org.springframework.context.annotation.internalAsyncAnnotationProcessor "," methodValidationPostProcessor "," embeddedServletProcoreanProcessor "," embeddedServletProcoreanProcessor "," internalServletProcessorContainer "applicationEventMulticaster "," org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration $ EmbeddedTomcat "," tomcatEmbeddedServletContainerFactory "," org.springframework.boot.autoconfigure.websocket.Webbsocket.WebsocketCiguration.Webbsocket " org.springframework.boot.autoconfigure.web.HttpEncodingProperties "," org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration "," localeCharsetMappingsCustomizer "," org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration "," localeCharsetMappingsCustomizer "," org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration "," localeCharsetMappingsCustomizer "," org.springframework.boot.autoconfigure. duplicateServerPropertiesDetector "," spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties "," org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration $ DefaultErrorViewResolverConfiguration "," conventionErrorViewResolver "," org.springframework.boot.boot.serveur "," org.springframework.boot.figuration "," org.springframework. contextParameters "," contextAttributes "," spring.mvc-org.springframework.boot.autoconfigure.web.WebMvcProperties "," spring.http.multipart-org.springframework.boot.autoconfigure.web.MultipartProperties "," org.sprame boot.autoconfigure.web.MultipartAutoConfiguration "," multipartConfigElement "," org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration $ DispatcherServletRegistrationConfiguration », "org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration $ DispatcherServletConfiguration", "DispatcherServlet", "dispatcherServletRegistration", "requestContextFilter", "org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration", "hiddenHttpMethodFilter" , "httpPutFormContentFilter", "characterEncodingFilter", "org.springframework.context.event.internalEventListenerProcessor", "org.springframework.context.event.internalEventListenerFactory", "reportGeneratorApplication", "exportController", "exportController", "exportController", "exportController" démarrage.autoconfigure.AutoConfigurationPackages "," org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration "," org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration $ Jackson2ObjectMapperConfiguration. JacksonProperties "," standardJacksonObjectMapperBuilderCustomizer "," org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration $ JacksonObjectMapperBuilderConfiguration "," org.springframework.boot.autoconfigure.jackson "," org.springframework.boot.autoconfigure.jackson "," org.springframework.boot.autoconfigure.jackson "," org.springframework.boot.autoconfiguration.jackson " boot.autoconfigure.jackson.JacksonAutoConfiguration $ JacksonObjectMapperConfiguration "," jacksonObjectMapper "," org.springframework.boot.autoconfigure.websocket.WebSocketAutoConfiguration "," org.springframework.boot. , "org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration", "defaultValidator", "org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration $ WhitelabelErrorViewConfiguration", "basicttabelErrorViewConfiguration", "basicttabelErrorViewConfiguration", "errorReservice", "errorReserver" , "org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration $ EnableWebMvcConfiguration " "org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration $ WebMvcAutoConfigurationAdapter", "mvcContentNegotiationManager", "org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration $ StringHttpMessageConverterConfiguration", "stringHttpMessageConverter"," org.springframework. boot.autoconfigure.web.JacksonHttpMessageConvertersConfiguration $ MappingJackson2HttpMessageConverterConfiguration "," mappingJackson2HttpMessageConverter "," org.springframework.boot.autoconfigure.web.HttpMessage "messageVersion, vonvonversion", "messageVersionConversion", "messageVersionConversion", "messageVersionContr.requestMappingHandlerAdapter », "mvcResourceUrlProvider", "requestMappingHandlerMapping", "mvcPathMatcher", "mvcUrlPathHelper", "viewControllerHandlerMapping", "beanNameHandlerMapping", "resourceHandlerMapping", "defaultServletHandlerMapping", "mvcUriComponentsContributor", "httpRequestHandlerAdapter", "simpleControllerHandlerAdapter", "handlerExceptionResolver" , "mvcViewResolver", "org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration $ WebMvcAutoConfigurationAdapter $ FaviconConfiguration", "faviconRequestHandler", "faviconHandlerMapping", "defaultViewResolver"viewResolver "," welcomePageHandlerMapping "," org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration "," objectNamingStrategy "," mbeanServer "," mbeanExporter "," org.springframeAdministration.boot. , "org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration", "org.springframework.boot.autoconfigure.web.JacksonHttpMessageConvertersConfiguration", "spring.info-org.springframework.boot.autoconfigure.web.JacksonHttpMessageConvertersConfiguration", "spring.info-org.springframefowork.boot. springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration "," multipartResolver "," org.springframework.boot.autoconfigure.web.WebClientAutoConfiguration $ RestTemplateConfiguration "," restTemplateBuilder "," org.springframework.boot.autoconfigure.web.WebClientAutoConfiguration "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration.de "," spring.devtools-org.springfiguration. org.springframework.boot.devtools.autoconfigure.LocalDevToolsAutoConfiguration $ RestartConfiguration " "fileSystemWatcherFactory", "classPathRestartStrategy", "classPathFileSystemWatcher", "hateoasObjenesisCacheDisabler", "org.springframework.boot.devtools.autoconfigure.LocalDevToolsAutoConfiguration $ LiveReloadConfiguration $ LiveReloadServerConfiguration"," org.springframework.boot.devtools.autoconfigure.LocalDevToolsAutoConfiguration $ LiveReloadConfiguration "," optionalLiveReloadServer "," org.springframework.boot.devtools.autoconfigure.LocalDevToolsAutoConfiguration "," lifecycleProcessor "]

Tu pourrais essayer d'appeler

org.springframework.beans.factory.ListableBeanFactory.getBeansOfType(Object.class)

Ou activez la journalisation du débogage pour org.springframework. (Dans le démarrage du printemps, cela utilise un paramètre --logging.level.org.springframework=DEBUG)

En utilisant, spring-boot-starter-actuatorvous pouvez facilement accéder à tous les bean.

Voici le processus de configuration:

1. Ajouter une dépendance dans gradle :

Ajouter ci-dessous dans le fichier gradle:

compile("org.springframework.boot:spring-boot-starter-actuator")

2. Activez la sécurité sur application.properties :

Ajouter management.security.enabled=falsedans votre fichier application.property

1. point de terminaison call / beans :

   Après cette configuration, le printemps activera certains points de terminaison liés aux métriques. L'un de ses points de terminaison est / beans. Après avoir appelé ces points de terminaison, il fournira un fichier json contenant tous vos bean, y compris sa dépendance et sa portée.

Voici un exemple de fichier json:

[{"context":"application:8442","parent":null,"beans":[{"bean":"beanName","aliases":[],"scope":"singleton","type":"packageName$$4b46c703","resource":"null","dependencies":["environment","beanName1","beanName2"]},{"bean":"org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory","aliases":[],"scope":"singleton","type":"org.springframework.core.type.classreading.CachingMetadataReaderFactory","resource":"null","dependencies":[]}]

Pour plus d'informations, visitez les liens ci-dessous:

• Création d'un service Web RESTful avec Spring Boot Actuator
• Spring Boot Actuator: vérification de l'état, audit, collecte de métriques
• Spring Boot Actuator: fonctionnalités prêtes pour la production

J'espère que ceci vous aidera. Merci :)

Voici une autre façon d'imprimer tous les noms de bean à partir du contexte de l'application Spring:

import java.util.Arrays;
import java.util.concurrent.atomic.AtomicInteger;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;

/***********************************************************************************************************
 * Java File: MainApplication.java
 * Description: Main class to run the application.
 * 
 ***********************************************************************************************************/

@SpringBootApplication
public class MainApplication {

private static final Logger logger = LogManager.getLogger(MainApplication.class);

public static void main(String[] args) 
{
    final ConfigurableApplicationContext context = SpringApplication.run(MainApplication.class, args);

    final AtomicInteger counter = new AtomicInteger(0);
    logger.info("**************** START: Total Bean Objects: {} ******************", context.getBeanDefinitionCount());

    Arrays.asList(context.getBeanDefinitionNames())
    .forEach(beanName -> {
        logger.info("{}) Bean Name: {} ", counter.incrementAndGet(), beanName);
    });

    logger.info("**************** END: Total Bean: {} ******************", context.getBeanDefinitionCount());
}

}


Sample Output:

2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:18] - **************** START: Total Bean Objects: 564 ****************** 
...........................
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:22] - 460) Bean Name: mvcPathMatcher  
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:22] - 461) Bean Name: mvcUrlPathHelper  
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:22] - 462) Bean Name: viewControllerHandlerMapping  
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:22] - 463) Bean Name: beanNameHandlerMapping  
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:22] - 464) Bean Name: resourceHandlerMapping 
...........................
2019-11-27 20:08:02.821 INFO  [main] [c.c.a.MainApplication:25] - **************** END: Total Bean: 564 ******************