合并许多 application.properties 文件而不是在 Spring Boot 上替换？
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【中文标题】合并许多 application.properties 文件而不是在 Spring Boot 上替换？【英文标题】：merge many application.properties files instead of replace on Spring Boot? 【发布时间】：2015-07-23 18:55:17 【问题描述】：我正在使用 Spring Boot MVC 1.2.2.RELEASE。我有我的多模块项目，其结构如下：
example-backend-development(parent)
---> example-backend-development-domain
---> example-backend-development-service
我想让两个模块独立，或者至少从服务域独立，因为服务在其类路径中有域模块。因此，这两个模块在各自的资源文件夹中都有其 application.properties 文件。我想这样做是因为我不想处理来自服务模块的所有属性（例如属于域模块的 Jpa 属性）。
例如，我在服务模块中有这个 application.properties
logging.level.org.springframework.web: DEBUG
logging.level.org.hibernate: ERROR
logging.level.com.example.movies: DEBUG
这个在域模块中
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/sarasa_db
spring.datasource.username=root
spring.datasource.password=mypassword
spring.jpa.hibernate.ddl-auto=update
spring.jpa.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.jpa.show-sql=true
问题是，当我启动我的服务时，因为它们都是 application.properties 都在服务类路径中，所以它将服务中的 application.properties 替换为域中的另一个。如果它们具有相同的名称，我想合并它们，就像这种情况一样。这里是spring日志（DEBUG+INFO）
:: Spring Boot :: (v1.2.2.RELEASE)
2015-05-12 15:06:24.794 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [servletConfigInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:24.797 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [servletContextInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:24.798 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [systemProperties] PropertySource with lowest search precedence
2015-05-12 15:06:24.798 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [systemEnvironment] PropertySource with lowest search precedence
2015-05-12 15:06:24.798 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Initialized StandardServletEnvironment with PropertySources [servletConfigInitParams,servletContextInitParams,systemProperties,systemEnvironment]
2015-05-12 15:06:24.840 INFO 7728 --- [ main] c.e.movies.service.ApplicationRunner : Starting ApplicationRunner on despubuntu-ThinkPad-E420 with PID 7728 (/home/despubuntu/Documents/Workspace/example-backend-development/example-backend-development/example-backend-development-service/target/classes started by despubuntu in /home/despubuntu/Documents/Workspace/example-backend-development/example-backend-development/example-backend-development-service)
2015-05-12 15:06:24.841 DEBUG 7728 --- [ main] c.e.movies.service.ApplicationRunner : Running with Spring Boot v1.2.2.RELEASE, Spring v4.1.6.RELEASE
2015-05-12 15:06:24.915 INFO 7728 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@55782201: startup date [Tue May 12 15:06:24 ART 2015]; root of context hierarchy
2015-05-12 15:06:25.034 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [class path resource [application.properties]] PropertySource with lowest search precedence
2015-05-12 15:06:25.083 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Replacing [class path resource [application.properties]] PropertySource with [class path resource [application.properties]]
2015-05-12 15:06:26.033 INFO 7728 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2015-05-12 15:06:26.753 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Adding [applicationConfig: [classpath:/application.properties]] PropertySource with search precedence immediately lower than [applicationConfigurationProperties]
2015-05-12 15:06:26.753 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Removing [applicationConfigurationProperties] PropertySource
2015-05-12 15:06:26.753 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Removing [defaultProperties] PropertySource
2015-05-12 15:06:27.178 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'spring.datasource.CONFIGURATION_PROPERTIES' of type [class org.springframework.boot.autoconfigure.jdbc.DataSourceProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.179 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$NonEmbeddedConfiguration' of type [class org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$NonEmbeddedConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.473 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'dataSource' of type [class org.apache.tomcat.jdbc.pool.DataSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.474 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'com.example.movies.domain.config.PersistenceConfiguration' of type [class com.example.movies.domain.config.PersistenceConfiguration$$EnhancerBySpringCGLIB$$1afe0f6c] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.665 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$8c497c14] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.812 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionAttributeSource' of type [class org.springframework.transaction.annotation.AnnotationTransactionAttributeSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.823 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionInterceptor' of type [class org.springframework.transaction.interceptor.TransactionInterceptor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:27.827 INFO 7728 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.config.internalTransactionAdvisor' of type [class org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2015-05-12 15:06:28.350 INFO 7728 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2015-05-12 15:06:28.737 INFO 7728 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2015-05-12 15:06:28.739 INFO 7728 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.20
2015-05-12 15:06:28.873 INFO 7728 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2015-05-12 15:06:28.873 DEBUG 7728 --- [ost-startStop-1] o.s.web.context.ContextLoader : Published root WebApplicationContext as ServletContext attribute with name [org.springframework.web.context.WebApplicationContext.ROOT]
2015-05-12 15:06:28.873 INFO 7728 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3962 ms
2015-05-12 15:06:29.077 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [servletConfigInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:29.077 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [servletContextInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:29.078 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [systemProperties] PropertySource with lowest search precedence
2015-05-12 15:06:29.078 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [systemEnvironment] PropertySource with lowest search precedence
2015-05-12 15:06:29.079 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Initialized StandardServletEnvironment with PropertySources [servletConfigInitParams,servletContextInitParams,systemProperties,systemEnvironment]
2015-05-12 15:06:29.132 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [servletConfigInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:29.132 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [servletContextInitParams] PropertySource with lowest search precedence
2015-05-12 15:06:29.133 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [systemProperties] PropertySource with lowest search precedence
2015-05-12 15:06:29.133 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Adding [systemEnvironment] PropertySource with lowest search precedence
2015-05-12 15:06:29.133 DEBUG 7728 --- [ost-startStop-1] o.s.w.c.s.StandardServletEnvironment : Initialized StandardServletEnvironment with PropertySources [servletConfigInitParams,servletContextInitParams,systemProperties,systemEnvironment]
2015-05-12 15:06:29.746 INFO 7728 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2015-05-12 15:06:29.751 INFO 7728 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2015-05-12 15:06:29.751 INFO 7728 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2015-05-12 15:06:29.781 DEBUG 7728 --- [ost-startStop-1] o.s.web.filter.HiddenHttpMethodFilter : Initializing filter 'hiddenHttpMethodFilter'
2015-05-12 15:06:29.781 DEBUG 7728 --- [ost-startStop-1] o.s.web.filter.HiddenHttpMethodFilter : Filter 'hiddenHttpMethodFilter' configured successfully
2015-05-12 15:06:29.787 DEBUG 7728 --- [ main] o.s.w.c.s.StandardServletEnvironment : Replacing [servletContextInitParams] PropertySource with [servletContextInitParams]
2015-05-12 15:06:29.857 INFO 7728 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2015-05-12 15:06:31.701 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@55782201: startup date [Tue May 12 15:06:24 ART 2015]; root of context hierarchy
2015-05-12 15:06:31.770 DEBUG 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Looking for request mappings in application context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@55782201: startup date [Tue May 12 15:06:24 ART 2015]; root of context hierarchy
2015-05-12 15:06:31.780 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/v3/clients],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<com.example.movies.api.models.response.ClientResponseDTO> com.example.movies.service.controller.ClientController.postClient(com.example.movies.api.models.request.ClientRequestDTO) throws com.example.movies.domain.exception.ValidationException
2015-05-12 15:06:31.780 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/v3/clients/clientId],methods=[PUT],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<com.example.movies.api.models.response.ClientResponseDTO> com.example.movies.service.controller.ClientController.putClient(com.example.movies.api.models.request.ClientRequestDTO,java.lang.String) throws com.example.movies.domain.exception.ValidationException
2015-05-12 15:06:31.780 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/v3/clients],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<com.example.movies.domain.feature.commons.model.PaginatedResponse<com.example.movies.api.models.response.ClientResponseDTO>> com.example.movies.service.controller.ClientController.getClients(com.example.movies.api.models.request.model.PagingRequestDTO) throws com.example.movies.domain.exception.ValidationException
2015-05-12 15:06:31.781 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/v3/clients/clientId],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<com.example.movies.api.models.response.ClientResponseDTO> com.example.movies.service.controller.ClientController.getClient(java.lang.String) throws com.example.movies.domain.exception.ValidationException
2015-05-12 15:06:31.781 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/v3/clients/clientId],methods=[DELETE],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public void com.example.movies.service.controller.ClientController.deleteClient(java.lang.String) throws com.example.movies.domain.exception.ValidationException
2015-05-12 15:06:31.782 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/health-check],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<com.example.movies.service.model.HealthCheck> com.example.movies.service.controller.MainController.doHealthCheck()
2015-05-12 15:06:31.782 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/version],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<java.lang.String> com.example.movies.service.controller.MainController.getVersion()
2015-05-12 15:06:31.785 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/error],methods=[],params=[],headers=[],consumes=[],produces=[text/html],custom=[]" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)
2015-05-12 15:06:31.786 INFO 7728 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "[/error],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2015-05-12 15:06:31.816 DEBUG 7728 --- [ main] o.s.w.s.h.BeanNameUrlHandlerMapping : Looking for URL mappings in application context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@55782201: startup date [Tue May 12 15:06:24 ART 2015]; root of context hierarchy
2015-05-12 15:06:31.816 DEBUG 7728 --- [ main] o.s.w.s.h.BeanNameUrlHandlerMapping : Rejected bean name 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor': no URL paths identified
2015-05-12 15:06:31.816 DEBUG 7728 --- [ main] o.s.w.s.h.BeanNameUrlHandlerMapping : Rejected bean name 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor': no URL paths identified
2015-05-12 15:06:31.816 DEBUG 7728 --- [ main] o.s.w.s.h.BeanNameUrlHandlerMapping : Rejected bean name 'org.springframework.context.annotation.internalRequiredAnnotationProcessor': no URL paths identified
....
我搜索了很多，但我找不到任何东西。你有什么主意吗？提前致谢！
【问题讨论】：
【参考方案1】：假设您正在从 example-backend-development-service 启动您的应用程序，我建议您执行以下操作
将application.propertiesin example-backend-development-domain重命名为`domainapplication.properties。在启动您的应用程序时，覆盖属性配置，如下所示。我对此进行了测试，它确实对我有用。
/**
* Hello world!
*
*/
@SpringBootApplication
@PropertySource(value = "application.properties","domainapplication.properties" )
public class App
@Autowired
private ModuleService moduleService;
public static void main(String[] args) throws Exception
ApplicationContext applicationContext= SpringApplication.run(App.class, args);
ModuleService moduleService = (ModuleService) applicationContext.getBean(ModuleService.class);
System.out.println(moduleService.getProp());
String[] beanNames = applicationContext.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames)
System.out.println(beanName);
编辑：-
如果您也从域启动，只需在 reference 此处使用以下内容
如果你不喜欢 application.properties 作为配置文件名，你可以通过指定 spring.config.name 环境属性来切换到另一个。您还可以使用 spring.config.location 环境属性（以逗号分隔的目录位置或文件路径列表）引用显式位置。
$ java -jar myproject.jar --spring.config.name=myproject
或
$ java -jar myproject.jar --spring.config.location=classpath:/default.properties,classpath:/override.properties
【讨论】：
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