如何获取应用的Spring Boot（自动）配置列表

Question

如何获取应用的Spring Boot（自动或非自动）配置列表？

Answer 1

构建完工件后，如果启动它，可以获得自动配置报告，包括--debug命令参数：

java -jar artifact.jar --debug

或直接将其添加为SpringApplication.run（）

的参数

SpringApplication.run(WebApp.class, "--debug");

或在IDE内部，在启动配置中添加--debug作为参数。

报告将如下所示：

=========================
AUTO-CONFIGURATION REPORT
=========================


Positive matches:
-----------------

   AopAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.context.annotation.EnableAspectJAutoProxy,org.aspectj.lang.annotation.Aspect,org.aspectj.lang.reflect.Advice (OnClassCondition)
      - matched (OnPropertyCondition)

   AopAutoConfiguration.JdkDynamicAutoProxyConfiguration
      - matched (OnPropertyCondition)

   AuditAutoConfiguration#authenticationAuditListener
      - @ConditionalOnClass classes found: org.springframework.security.authentication.event.AbstractAuthenticationEvent (OnClassCondition)

   AuditAutoConfiguration#authorizationAuditListener
      - @ConditionalOnClass classes found: org.springframework.security.access.event.AbstractAuthorizationEvent (OnClassCondition)

   AuditAutoConfiguration.AuditEventRepositoryConfiguration
      - @ConditionalOnMissingBean (types: org.springframework.boot.actuate.audit.AuditEventRepository; SearchStrategy: all) found no beans (OnBeanCondition)

[...]

Negative matches:
-----------------

   ActiveMQAutoConfiguration
      - required @ConditionalOnClass classes not found: javax.jms.ConnectionFactory,org.apache.activemq.ActiveMQConnectionFactory (OnClassCondition)

   AopAutoConfiguration.CglibAutoProxyConfiguration
      - @ConditionalOnProperty missing required properties spring.aop.proxy-target-class  (OnPropertyCondition)

   AtomikosJtaConfiguration
      - required @ConditionalOnClass classes not found: com.atomikos.icatch.jta.UserTransactionManager (OnClassCondition)

Answer 2

Spring Boot Actuator能够转储此类信息。

http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-external-config-validation

启用执行器，然后打开http://localhost/configprops。 以下是我的一个项目中的示例：

Actuator显示了很多有用的信息（autoconfig，env，映射，bean，日志文件，跟踪等），所以我建议你甚至在生产机器上启用它。它可以很容易地通过密码保护。

要查看来自application.properties / application.yml的配置，您可以使用/env端点。