在非Web注释配置的应用程序中初始化Spring

使用@Configuration命名AppConfig,它等同于applicationContext.xml.

@Configuration
public class AppConfig {

  @Bean(initMethod = "init")
  public Foo foo() {
      return new Foo();
  }

  @Bean(destroyMethod = "cleanup")
  public Bar bar() {
      return new Bar();
  }
}

并在main方法中新建一个AnnotationConfigApplicationContext.

public static void main(String[] args) {
  ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class);
  Foo foo = ctx.getBean(Foo.class);
  //etc
}