spring学习18-首选bean

userService类
    package com.geyao.demo.service;
     import org.junit.Test;
     import org.junit.runner.RunWith;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.test.context.ContextConfiguration;
     import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
     @RunWith(SpringJUnit4ClassRunner.class)
     @ContextConfiguration(classes = Appconfig.class)
     public class UserServiceTest {
         @Autowired
         private UserService userService;
         @Test
         public void  testAdd(){
             userService.add();
         }
     }UserServiceNormal类
    package com.geyao.demo.service.com.geyao.demo.service.impl;
     import com.geyao.demo.service.UserService;
     import org.springframework.stereotype.Component;
     @Component
     public class UserServiceNormal implements UserService {
         public void add(){
             System.out.println("添加用户");
         }
     }Appconfig类
    package com.geyao.demo.service;
     import org.springframework.context.annotation.ComponentScan;
     import org.springframework.context.annotation.Configuration;
     @Configuration
     @ComponentScan
     public class Appconfig {
     }userserviceFestival类
    package com.geyao.demo.service.com.geyao.demo.service.impl;
     import com.geyao.demo.service.UserService;
     import org.springframework.context.annotation.Primary;
     import org.springframework.stereotype.Component;
     @Component
     //首选bean
     @Primary
     public class UserServiceFestival implements UserService {
         public void add(){
             System.out.println("添加用户并发送优惠券");
         }
     }UserServiceTest类
    package com.geyao.demo.service;
     import com.geyao.demo.service.com.geyao.demo.service.impl.UserServiceNormal;
     import org.junit.Test;
     import org.junit.runner.RunWith;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.test.context.ContextConfiguration;
     import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
     @RunWith(SpringJUnit4ClassRunner.class)
     @ContextConfiguration(classes = Appconfig.class)
     public class UserServiceTest {
         @Autowired
        private UserService userService;
         @Test
         public void  testAdd(){
             userService.add();
         }
     } 运行结果
    [INFO ] 2019-10-30 20:08:51,472 method:org.springframework.test.context.support.AbstractTestContextBootstrapper.getDefaultTestExecutionListenerClassNames(AbstractTestContextBootstrapper.java:260)
     Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]
     [INFO ] 2019-10-30 20:08:51,482 method:org.springframework.test.context.support.AbstractTestContextBootstrapper.instantiateListeners(AbstractTestContextBootstrapper.java:209)
     Could not instantiate TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [javax/servlet/ServletContext]
     [INFO ] 2019-10-30 20:08:51,484 method:org.springframework.test.context.support.AbstractTestContextBootstrapper.instantiateListeners(AbstractTestContextBootstrapper.java:209)
     Could not instantiate TestExecutionListener [org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [org/springframework/transaction/interceptor/TransactionAttribute]
     [INFO ] 2019-10-30 20:08:51,485 method:org.springframework.test.context.support.AbstractTestContextBootstrapper.instantiateListeners(AbstractTestContextBootstrapper.java:209)
     Could not instantiate TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [org/springframework/transaction/interceptor/TransactionAttributeSource]
     [INFO ] 2019-10-30 20:08:51,487 method:org.springframework.test.context.support.AbstractTestContextBootstrapper.getTestExecutionListeners(AbstractTestContextBootstrapper.java:187)
     Using TestExecutionListeners: [org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@1786f9d5, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@704d6e83, org.springframework.test.context.support.DirtiesContextTestExecutionListener@43a0cee9][INFO ] 2019-10-30 20:08:51,650 method:org.springframework.context.support.AbstractApplicationContext.prepareRefresh(AbstractApplicationContext.java:583)
     Refreshing org.springframework.context.support.GenericApplicationContext@4df828d7: startup date [Wed Oct 30 20:08:51 CST 2019]; root of context hierarchy
     [DEBUG] 2019-10-30 20:08:51,672 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:51,673 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:51,707 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:51,710 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     WARNING: An illegal reflective access operation has occurred
     WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/C:/Users/geyao/.m2/repository/org/springframework/spring-core/4.3.13.RELEASE/spring-core-4.3.13.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
     WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1
     WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
     WARNING: All illegal access operations will be denied in a future release
     [DEBUG] 2019-10-30 20:08:51,974 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:51,975 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:51,976 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,022 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,023 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,023 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,025 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,034 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,041 method:org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:730)
     Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@44ebcd03: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,appconfig,userServiceFestival,userServiceNormal,userService.Appconfig]; root of factory hierarchy
     [DEBUG] 2019-10-30 20:08:52,041 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,042 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,042 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'
     [DEBUG] 2019-10-30 20:08:52,043 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-30 20:08:52,043 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-30 20:08:52,051 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.event.internalEventListenerProcessor' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,054 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'
     [DEBUG] 2019-10-30 20:08:52,055 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-30 20:08:52,055 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-30 20:08:52,056 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'org.springframework.context.event.internalEventListenerFactory' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,059 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-30 20:08:52,060 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'appconfig'
     [DEBUG] 2019-10-30 20:08:52,060 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'appconfig'
     [DEBUG] 2019-10-30 20:08:52,061 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'appconfig' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,069 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'appconfig'
     [DEBUG] 2019-10-30 20:08:52,069 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'userServiceFestival'
     [DEBUG] 2019-10-30 20:08:52,070 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'userServiceFestival'
     [DEBUG] 2019-10-30 20:08:52,071 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'userServiceFestival' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,075 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'userServiceFestival'
     [DEBUG] 2019-10-30 20:08:52,076 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'userServiceNormal'
     [DEBUG] 2019-10-30 20:08:52,077 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'userServiceNormal'
     [DEBUG] 2019-10-30 20:08:52,078 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'userServiceNormal' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,082 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'userServiceNormal'
     [DEBUG] 2019-10-30 20:08:52,082 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
     Creating shared instance of singleton bean 'userService.Appconfig'
     [DEBUG] 2019-10-30 20:08:52,083 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:449)
     Creating instance of bean 'userService.Appconfig'
     [DEBUG] 2019-10-30 20:08:52,084 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
     Eagerly caching bean 'userService.Appconfig' to allow for resolving potential circular references
     [DEBUG] 2019-10-30 20:08:52,089 method:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:485)
     Finished creating instance of bean 'userService.Appconfig'
     [DEBUG] 2019-10-30 20:08:52,090 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'
     [DEBUG] 2019-10-30 20:08:52,152 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'lifecycleProcessor'
     [DEBUG] 2019-10-30 20:08:52,162 method:org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:86)
     Processing injected element of bean 'com.geyao.demo.service.UserServiceTest': AutowiredFieldElement for private com.geyao.demo.service.UserService com.geyao.demo.service.UserServiceTest.userService
     [DEBUG] 2019-10-30 20:08:52,169 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'userServiceFestival'
     [DEBUG] 2019-10-30 20:08:52,170 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'userServiceNormal'
     [DEBUG] 2019-10-30 20:08:52,171 method:org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.registerDependentBeans(AutowiredAnnotationBeanPostProcessor.java:535)
     Autowiring by type from bean name 'com.geyao.demo.service.UserServiceTest' to bean named 'userServiceFestival'
     添加用户并发送优惠券
     [INFO ] 2019-10-30 20:08:52,182 method:org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:984)
     Closing org.springframework.context.support.GenericApplicationContext@4df828d7: startup date [Wed Oct 30 20:08:51 CST 2019]; root of context hierarchy
     [DEBUG] 2019-10-30 20:08:52,184 method:org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:251)
     Returning cached instance of singleton bean 'lifecycleProcessor'
     [DEBUG] 2019-10-30 20:08:52,184 method:org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:512)
     Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@44ebcd03: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,appconfig,userServiceFestival,userServiceNormal,userService.Appconfig]; root of factory hierarchy