Spring XML配置方式和Spring Boot注解方式的详细对照关系

功能/配置项	Spring XML配置方式	Spring Boot注解方式
定义Bean	xml <bean id="myBean" class="com.example.MyBean"/>	java @Bean public MyBean myBean() {  return new MyBean(); }
注入Bean	xml <bean id="myBean" class="com.example.MyBean">  <property name="dependency" ref="dependencyBean"/> </bean>	java @Autowired private DependencyBean dependency;
配置数据源	xml <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">  <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>  <property name="url" value="jdbc:mysql://localhost:3306/mydb"/>  <property name="username" value="root"/>  <property name="password" value="password"/> </bean>	java @Configuration @EnableAutoConfiguration @ComponentScan public class Application {  @Bean  @ConfigurationProperties(prefix = "spring.datasource")  public DataSource dataSource() {  return DataSourceBuilder.create().build();  } }
配置事务管理	xml <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  <property name="dataSource" ref="dataSource"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/>	java @EnableTransactionManagement @Configuration public class AppConfig {  @Bean  public PlatformTransactionManager transactionManager(DataSource dataSource) {  return new DataSourceTransactionManager(dataSource);  } }
配置JPA	xml <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">  <property name="dataSource" ref="dataSource"/>  <property name="packagesToScan" value="com.example.entity"/>  <property name="jpaVendorAdapter">  <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>  </property> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">  <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/>	java @SpringBootApplication @EnableJpaRepositories(basePackages = "com.example.repository") public class Application {  public static void main(String[] args) {  SpringApplication.run(Application.class, args);  } }
配置MVC	xml <mvc:annotation-driven/> <context:component-scan base-package="com.example.controller"/>	java @SpringBootApplication @ComponentScan(basePackages = "com.example.controller") public class Application {  public static void main(String[] args) {  SpringApplication.run(Application.class, args);  } }
配置属性文件	xml <context:property-placeholder location="classpath:application.properties"/>	java @SpringBootApplication @PropertySource("classpath:application.properties") public class Application {  public static void main(String[] args) {  SpringApplication.run(Application.class, args);  } }
配置AOP	xml <aop:aspectj-autoproxy/> <bean id="myAspect" class="com.example.MyAspect"/>	java @EnableAspectJAutoProxy @Configuration public class AppConfig {  @Bean  public MyAspect myAspect() {  return new MyAspect();  } }