C'è un modo per stampare tutti i bean di primavera caricati all'avvio? Sto usando Spring 2.0.
C'è un modo per stampare tutti i bean di primavera caricati all'avvio? Sto usando Spring 2.0.
Risposte:
Sì, ApplicationContextcontattaci e chiama.getBeanDefinitionNames()
Puoi ottenere il contesto:
ApplicationContextAware@Inject/ @Autowired(dopo 2.5)WebApplicationContextUtils.getRequiredWebApplicationContext(..)Correlati: è anche possibile rilevare la registrazione di ciascun bean registrando un BeanPostprocessorbean. Verrà notificato per ogni bean.
public class PrintBeans {
@Autowired
ApplicationContext applicationContext;
public void printBeans() {
System.out.println(Arrays.asList(applicationContext.getBeanDefinitionNames()));
}
}
Stampa tutti i nomi dei bean e le sue classi:
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";
}
}
applicationContext.getBeanDefinitionNames () non senza mostrare i fagioli che sono registrati senza esempio 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);
}
}
}
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
Come puoi vedere nell'output, environment, systemProperties, i bean systemEnvironment non verranno visualizzati utilizzando il metodo context.getBeanDefinitionNames () .
Per le applicazioni Web di avvio primaverile, tutti i bean possono essere elencati utilizzando l'endpoint seguente.
@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", "org.sigure.spring. internalCachingMetadataReaderFactory "," org.springframework.boot.autoconfigure.condition.BeanTypeRegistry "," org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry "," propertySourcesPlaceholderConfigurer "," org.sourcesPlaceholderConfigurer. , "PreservaErrorControllerTargetClassPostProcessor "," org.springframework.context.annotation.internalAutowiredAnnotationProcessor "," org.springframework.context.annotation.internalRequiredAnnotationProcessor "," org.springframeframework.context.pertorio. ConfigurationPropertiesBindingPostProcessor "," org.springframework.scheduling.annotation.ProxyAsyncConfiguration "," org.springframework.context.annotation.internalAsyncAnnotationProcessor "," methodValidationPostProcessor "," embeddedServletPostProcessor "," embeddedServletPostProcessoreProcessore "," embeddedServletPostProcessorapplicationEventMulticaster "," org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration $ EmbeddedTomcat "," tomcatEmbeddedServletContainerFactory "," org.springframework.boot.autoconfigure.websocket.WebigurizerSocket "," tomcatEmbeddedServletContainerFactory "," org.springframework.boot.autoconfigure.websocket.WebigurizerSocket " org.springframework.boot.autoconfigure.web.HttpEncodingProperties "," org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration "," localeCharsetMappingsCustomizer "," org.springframework.boot.autoconfigure.web.HttpEncodingAutoConfiguration "," localeCharsetMappingsCustomizer "," org.springframework.boot.autoconfigure.perfiguration "," 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.autoconfigure.webroreconfiguration "," conventionErrorViewResolver "," org.springframework.boot.autoconfigure.webror "error contextParameters "," contextAttributes "," spring.mvc-org.springframework.boot.autoconfigure.web.WebMvcProperties "," spring.http.multipart-org.springframework.boot.autoconfigure.web.MultipartProperties "," org.springframework. boot.autoconfigure.web.MultipartAutoConfiguration "," multipartConfigElement "," org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration $ DispatcherServletConfiguration "," org.springframework.boot.autoconfigure.web. , "httpPutFormContentFilter", "characterEncodingFilter", "org.springframework.context.event.internalEventListenerProcessor", "org.springframework.context.event.internalEventListenerFactory", "reportGeneratorApplication", "exportCervice. stivale.autoconfigure.AutoConfigurationPackages "," org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration "," org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration $ Jackson2ObjectMapperBuigurotecustomizer.configuration ", springoconfiguration. JacksonProperties "," standardJacksonObjectMapperBuilderCustomizer "," org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration $ JacksonObjectMapperBuilderConfiguration "," org.springframework.boot.autoconfigure.jackson.Jackon.JacksonAutoConfiguration $ JacksonObjectMapperBuilderConfiguration "," org.springframework.boot.autoconfigure.jackson.Jackonprule ". boot.autoconfigure.jackson.JacksonAutoConfiguration $ JacksonObjectMapperConfiguration "," jacksonObjectMapper "," org.springframework.boot.autoconfigure.websocket.WebSocketAutoConfiguration "," org.springframework.boot.autoconfigure.web.EmbeddedServletConframe.EmbeddedServletContainerFiguration " , "org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration", "defaultValidator", "org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration $ WhitelabelErrorViewConfiguration", "error", "beanrrribErrorController", "error" , "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.HttpMessageConverterConfiguration "," mappingJackson2HttpMessageConverter "," org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration "," messageConvertersAutoConfrequestMappingHandlerAdapter", "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.springframework.boot.autoconfigureJistrategy "," mbeanServer "," mbeanExporter "," org.springframework.boot. , "org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration", "org.springframework.boot.autoconfigure.web.JacksonHttpMessageConvertersConfiguration", "spring.info-org.springframework.boot.autoconjectInfo.Properties". springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration "," multipartResolver "," org.springframework.boot.autoconfigure.web.WebClientAutoConfiguration $ RestTemplateConfiguration "," restTemplateBuilder "," org.springframework.boot.autoconfigure.web.WebClientAutoConfiguration "," spring.devtools-org.sprotevools.doc. 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 "]
Potresti provare a chiamare
org.springframework.beans.factory.ListableBeanFactory.getBeansOfType(Object.class)
Oppure attiva la registrazione di debug per org.springframework. (Nell'avvio di primavera, utilizza un parametro --logging.level.org.springframework=DEBUG)
ListableBeanFactoryè un'interfaccia. Dove si otterrebbe un'istanza di una classe che estende quell'interfaccia per eseguire il metodo getBeansOfTypeo qualsiasi altro metodo nell'interfaccia? Vedo che lo ApplicationContextestende, ma il tuo esempio non mostra come acquisirne uno.
@Autowired ListableBeanFactory listableBeanFactorye ne otterrai uno (il tipo di implementazione non dovrebbe avere importanza)
Usando spring-boot-starter-actuatorpuoi accedere facilmente a tutti i bean.
Ecco il processo di installazione:
Aggiungi muggito nel file gradle:
compile("org.springframework.boot:spring-boot-starter-actuator")
Aggiungi management.security.enabled=falseal tuo file application.property
endpoint chiamata / bean :
Dopo quella configurazione, la primavera abiliterà alcuni endpoint relativi alle metriche. Uno dei suoi endpoint è / bean. Dopo aver chiamato questo endpoint, fornirà un file json che contiene tutto il tuo bean, inclusa la dipendenza e l'ambito.
Ecco un file json di esempio:
[{"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":[]}]
Per maggiori informazioni visita i link seguenti:
Spero che questo ti possa aiutare. Grazie :)
Ecco un altro modo per stampare tutti i nomi dei bean dal contesto dell'applicazione 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 ******************
ApplicationContextAwareinterfaccia è perché il framework Spring gli dà la possibilità di accedere al contesto dell'applicazione. Dovresti inserirlo nella@Configurationclasse per il contesto dell'applicazione previsto.