Spring Boot 启动时执行特殊的代码使用CommandLineRunner、ApplicationRunner

朱雀 2022-08-20 03:24 16阅读 0赞

/*
 * Copyright 2012-2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
 package org.springframework.boot;
 
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
 
 /**
 * Interface used to indicate that a bean should run when it is contained within
 * a {@link SpringApplication}. Multiple {@link CommandLineRunner} beans can be defined
 * within the same application context and can be ordered using the {@link Ordered}
 * interface or {@link Order @Order} annotation.
 * 
 * If you need access to {@link ApplicationArguments} instead of the raw String array
 * consider using {@link ApplicationRunner}.
 *
 * @author Dave Syer
 * @see ApplicationRunner
 */
 public interface CommandLineRunner {
 
 	/**
 	 * Callback used to run the bean.
 	 * @param args incoming main method arguments
 	 * @throws Exception on error
 	 */
 	void run(String... args) throws Exception;
 
 }

**操作示例1：打印语句**

import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 /**
 * 项目启动器
 * @author wangbowen
 *
 */
 @SpringBootApplication//必须标注该注解才能扫描程序里面的注解组件
 public class SimpleApplication implements CommandLineRunner{
 
 	@Override
 	public void run(String... args) throws Exception {
 		System.out.println("hello!Spring Boot");
 	}
 
 	public static void main(String[] args) {
 		SpringApplication.run(SimpleApplication.class, args);
 	}
 }

**控制台显示信息：**

SLF4J: Class path contains multiple SLF4J bindings.
 SLF4J: Found binding in [jar:file:/D:/development%20tools/maven/maven_repertory/ch/qos/logback/logback-classic/1.1.3/logback-classic-1.1.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
 SLF4J: Found binding in [jar:file:/D:/development%20tools/maven/maven_repertory/org/slf4j/slf4j-log4j12/1.7.13/slf4j-log4j12-1.7.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]
 SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
 SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
 
 . ____ _ __ _ _
 /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
 ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/ ___)| |_)| | | | | || (_| | ) ) ) )
 ' |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot :: (v1.3.1.RELEASE)
 
 2016-01-28 11:01:33.763 INFO 6208 --- [ main] com.my.data.cache.SimpleApplication : Starting SimpleApplication on wangbowen with PID 6208 (E:\workspace\eclipse_my\com-my-data-cache\target\classes started by Administrator in E:\workspace\eclipse_my\com-my-data-cache)
 2016-01-28 11:01:33.764 INFO 6208 --- [ main] com.my.data.cache.SimpleApplication : No active profile set, falling back to default profiles: default
 2016-01-28 11:01:34.216 INFO 6208 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@11094e7: startup date [Thu Jan 28 11:01:34 CST 2016]; root of context hierarchy
 2016-01-28 11:01:36.626 INFO 6208 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver' with a different definition: 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]]
 2016-01-28 11:01:37.794 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$96fb5b46] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.135 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cache.annotation.ProxyCachingConfiguration' of type [class org.springframework.cache.annotation.ProxyCachingConfiguration$$EnhancerBySpringCGLIB$$fe5925a4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.191 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration' of type [class org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration$$EnhancerBySpringCGLIB$$388125c8] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.457 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'spring.cache.CONFIGURATION_PROPERTIES' of type [class org.springframework.boot.autoconfigure.cache.CacheProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.471 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.boot.autoconfigure.cache.SimpleCacheConfiguration' of type [class org.springframework.boot.autoconfigure.cache.SimpleCacheConfiguration$$EnhancerBySpringCGLIB$$c83bd089] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.487 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'cacheManager' of type [class org.springframework.cache.concurrent.ConcurrentMapCacheManager] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:38.491 INFO 6208 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'cacheAutoConfigurationValidator' of type [class org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration$CacheManagerValidator] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
 2016-01-28 11:01:39.199 INFO 6208 --- [ main] e.j.JettyEmbeddedServletContainerFactory : Server initialized with port: 8080
 2016-01-28 11:01:39.204 INFO 6208 --- [ main] org.eclipse.jetty.server.Server : jetty-9.2.14.v20151106
 2016-01-28 11:01:39.396 INFO 6208 --- [ main] application : Initializing Spring embedded WebApplicationContext
 2016-01-28 11:01:39.396 INFO 6208 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 5181 ms
 2016-01-28 11:01:40.557 INFO 6208 --- [ main] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
 2016-01-28 11:01:40.568 INFO 6208 --- [ main] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
 2016-01-28 11:01:40.568 INFO 6208 --- [ main] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
 2016-01-28 11:01:40.569 INFO 6208 --- [ main] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
 2016-01-28 11:01:40.569 INFO 6208 --- [ main] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
 2016-01-28 11:01:40.912 INFO 6208 --- [ main] o.e.jetty.server.handler.ContextHandler : Started o.s.b.c.e.j.JettyEmbeddedWebAppContext@fc596e{/,file:/C:/Users/Administrator/AppData/Local/Temp/jetty-docbase.7392717449312476338.8080/,AVAILABLE}
 2016-01-28 11:01:40.913 INFO 6208 --- [ main] org.eclipse.jetty.server.Server : Started @8944ms
 2016-01-28 11:01:42.660 INFO 6208 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
 2016-01-28 11:01:42.677 INFO 6208 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
 	name: default
 	...]
 2016-01-28 11:01:42.861 INFO 6208 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {4.3.11.Final}
 2016-01-28 11:01:42.864 INFO 6208 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
 2016-01-28 11:01:42.867 INFO 6208 --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
 2016-01-28 11:01:43.522 INFO 6208 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
 2016-01-28 11:01:43.653 INFO 6208 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
 2016-01-28 11:01:43.890 INFO 6208 --- [ main] o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
 2016-01-28 11:01:45.688 INFO 6208 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : >>>>>>D:\Program Files\Java\jdk1.7.0_13>>>>>>
 2016-01-28 11:01:45.689 INFO 6208 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : >>>>>>jdbc:mysql://localhost/mydatabase<<<<<<<<
 2016-01-28 11:01:45.689 INFO 6208 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : jdbc:mysql://localhost/mydatabase
 2016-01-28 11:01:47.866 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@11094e7: startup date [Thu Jan 28 11:01:34 CST 2016]; root of context hierarchy
 2016-01-28 11:01:48.489 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/add]}" onto public java.lang.String com.my.data.cache.controller.BookController.insertBook()
 2016-01-28 11:01:48.491 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/list],methods=[GET]}" onto public java.util.List<com.my.data.cache.domain.Book> com.my.data.cache.controller.BookController.list()
 2016-01-28 11:01:48.492 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/{id}]}" onto public com.my.data.cache.domain.Book com.my.data.cache.controller.BookController.index(java.lang.Integer)
 2016-01-28 11:01:48.492 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/update]}" onto public java.lang.String com.my.data.cache.controller.BookController.update()
 2016-01-28 11:01:48.493 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
 2016-01-28 11:01:48.493 INFO 6208 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" 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)
 2016-01-28 11:01:48.591 INFO 6208 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:01:48.591 INFO 6208 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:01:48.718 INFO 6208 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:01:48.846 WARN 6208 --- [ main] o.s.b.a.t.ThymeleafAutoConfiguration : Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration)
 2016-01-28 11:01:50.786 INFO 6208 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
 2016-01-28 11:01:50.850 INFO 6208 --- [ main] application : Initializing Spring FrameworkServlet 'dispatcherServlet'
 2016-01-28 11:01:50.850 INFO 6208 --- [ main] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
 2016-01-28 11:01:50.927 INFO 6208 --- [ main] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 77 ms
 2016-01-28 11:01:51.120 INFO 6208 --- [ main] o.eclipse.jetty.server.ServerConnector : Started ServerConnector@125130d{HTTP/1.1}{0.0.0.0:8080}
 2016-01-28 11:01:51.132 INFO 6208 --- [ main] .s.b.c.e.j.JettyEmbeddedServletContainer : Jetty started on port(s) 8080 (http/1.1)
 hello!Spring Boot

**操作示例二:调用接口**

import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cache.annotation.EnableCaching;
 
 import com.my.data.cache.domain.Book;
 import com.my.data.cache.service.BookService;
 
 
 /**
 * 
 * 启动器
 *
 */
 @SpringBootApplication
 @EnableCaching//扫描cahce注解
 public class Application1 implements CommandLineRunner{
 	
 	@Autowired
 private BookService bookService;
 	@Override
 	public void run(String... args) throws Exception {
 		Book b1 = bookService.findByIsbn("1");
 		Book b2 = bookService.findByIsbn("2");
 		Book b3 = bookService.findById(3);
 	 System.out.println(b1);
 System.out.println(b2);
 System.out.println(b3);
 		
 	}
 	public static void main(String[] args) {
 		 SpringApplication.run(Application1.class,args);
 	}
 
 }

**控制台信息:**

2016-01-28 11:05:49.996 INFO 8536 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
 2016-01-28 11:05:50.000 INFO 8536 --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
 2016-01-28 11:05:50.489 INFO 8536 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
 2016-01-28 11:05:50.626 INFO 8536 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
 2016-01-28 11:05:50.889 INFO 8536 --- [ main] o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
 2016-01-28 11:05:52.791 INFO 8536 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : >>>>>>D:\Program Files\Java\jdk1.7.0_13>>>>>>
 2016-01-28 11:05:52.791 INFO 8536 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : >>>>>>jdbc:mysql://localhost/mydatabase<<<<<<<<
 2016-01-28 11:05:52.792 INFO 8536 --- [ main] c.m.d.cache.config.MyWebAppConfigurer : jdbc:mysql://localhost/mydatabase
 2016-01-28 11:05:53.359 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@1e48a4f: startup date [Thu Jan 28 11:05:40 CST 2016]; root of context hierarchy
 2016-01-28 11:05:53.558 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/add]}" onto public java.lang.String com.my.data.cache.controller.BookController.insertBook()
 2016-01-28 11:05:53.560 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/list],methods=[GET]}" onto public java.util.List<com.my.data.cache.domain.Book> com.my.data.cache.controller.BookController.list()
 2016-01-28 11:05:53.561 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/{id}]}" onto public com.my.data.cache.domain.Book com.my.data.cache.controller.BookController.index(java.lang.Integer)
 2016-01-28 11:05:53.561 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/book/update]}" onto public java.lang.String com.my.data.cache.controller.BookController.update()
 2016-01-28 11:05:53.568 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
 2016-01-28 11:05:53.568 INFO 8536 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" 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)
 2016-01-28 11:05:53.682 INFO 8536 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:05:53.682 INFO 8536 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:05:53.831 INFO 8536 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
 2016-01-28 11:05:54.028 WARN 8536 --- [ main] o.s.b.a.t.ThymeleafAutoConfiguration : Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration)
 2016-01-28 11:05:55.526 INFO 8536 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
 2016-01-28 11:05:55.563 INFO 8536 --- [ main] application : Initializing Spring FrameworkServlet 'dispatcherServlet'
 2016-01-28 11:05:55.563 INFO 8536 --- [ main] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
 2016-01-28 11:05:55.611 INFO 8536 --- [ main] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 48 ms
 2016-01-28 11:05:55.688 INFO 8536 --- [ main] o.eclipse.jetty.server.ServerConnector : Started ServerConnector@160ba79{HTTP/1.1}{0.0.0.0:8080}
 2016-01-28 11:05:55.694 INFO 8536 --- [ main] .s.b.c.e.j.JettyEmbeddedServletContainer : Jetty started on port(s) 8080 (http/1.1)
 Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.isbn=?
 Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.isbn=?
 Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.id=?
 Book{isbn='1', title='爱的力量'}
 Book{isbn='2', title='呵呵'}
 Book{isbn='1111', title='相信自己'}
 hello!Spring Boot
 2016-01-28 11:06:00.955 INFO 8536 --- [ main] com.my.data.cache.Application1

**ApplicationRunner**

/*
 * Copyright 2012-2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
 package org.springframework.boot;
 
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
 
 /**
 * Interface used to indicate that a bean should run when it is contained within
 * a {@link SpringApplication}. Multiple {@link ApplicationRunner} beans can be defined
 * within the same application context and can be ordered using the {@link Ordered}
 * interface or {@link Order @Order} annotation.
 *
 * @author Phillip Webb
 * @since 1.3.0
 * @see CommandLineRunner
 */
 public interface ApplicationRunner {
 
 	/**
 	 * Callback used to run the bean.
 	 * @param args incoming application arguments
 	 * @throws Exception on error
 	 */
 	void run(ApplicationArguments args) throws Exception;
 
 }

package com.my.data.cache;
    
    import org.springframework.boot.ApplicationArguments;
    import org.springframework.boot.ApplicationRunner;
    import org.springframework.boot.CommandLineRunner;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    /**
     * 项目启动器
     * @author wangbowen
     *
     */
    @SpringBootApplication//必须标注该注解才能扫描程序里面的注解组件
    public class SimpleApplication  implements ApplicationRunner{
    
    
    	public static void main(String[] args) {
    		SpringApplication.run(SimpleApplication.class, args);
    	}
    
    	@Override
    	public void run(ApplicationArguments args) throws Exception {
    		System.out.println("-------------"+args);
    	}
    }

示例3：

package com.my.data.cache.domain;
    
    import org.springframework.boot.CommandLineRunner;
    import org.springframework.stereotype.Component;
    @Component
    public class Mybean  implements CommandLineRunner{
       
    	@Override
    	public void run(String... args) throws Exception {
    		System.out.println("程序员的苦逼生活！！！");
    	}
    
    }

控制台信息：

2016-01-28 11:17:55.223  INFO 10064 --- [           main] application                              : Initializing Spring FrameworkServlet 'dispatcherServlet'
    2016-01-28 11:17:55.223  INFO 10064 --- [           main] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started
    2016-01-28 11:17:55.296  INFO 10064 --- [           main] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 73 ms
    2016-01-28 11:17:55.464  INFO 10064 --- [           main] o.eclipse.jetty.server.ServerConnector   : Started ServerConnector@820067{HTTP/1.1}{0.0.0.0:8080}
    2016-01-28 11:17:55.484  INFO 10064 --- [           main] .s.b.c.e.j.JettyEmbeddedServletContainer : Jetty started on port(s) 8080 (http/1.1)
    hello!Spring Boot
    Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.isbn=?
    Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.isbn=?
    Hibernate: select book0_.id as id1_0_, book0_.isbn as isbn2_0_, book0_.title as title3_0_ from book book0_ where book0_.id=?
    Book{isbn='1', title='爱的力量'}
    Book{isbn='2', title='呵呵'}
    Book{isbn='1111', title='相信自己'}
    程序员的苦逼生活！！！