org.springframework.context.annotation.AnnotationConfigApplicationContext#getBeanNamesForType ( )源码实例Demo

/**
 * 测试profile
 *  1）使用命令参数加载profile
 *      -Dspring.profiles.active=test
 *  2）使用AnnotationConfigApplicationContext无参构造器
 */
@Test
public void test01() {

    //AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(MainConfigofProfile.class);

    // 1.使用无参构造器创建对象
    AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext();
    // 2.设置需要激活的环境
    applicationContext.getEnvironment().setActiveProfiles("dev");
    // 3.加载主配置类
    applicationContext.register(MainConfigofProfile.class);
    // 4.刷新容器
    applicationContext.refresh();

    String[] beanNamesForType = applicationContext.getBeanNamesForType(DataSource.class);
    for (String name : beanNamesForType) {
        System.out.println(name);
    }

    Yellow yellow = applicationContext.getBean(Yellow.class);
    System.out.println(yellow);
}
 

@Test
public void testNoDefaultFactory() {
	AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
			SampleConfiguration1.class);
	String[] beanNamesForType = context
			.getBeanNamesForType(FeignErrorDecoderFactory.class);
	assertThat(beanNamesForType).isEmpty();
	context.close();
}
 

@Test
public void disableFeignTracing() {
  AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
  context.register(TracerConfig.class, FeignTracingAutoConfiguration.class);
  TestPropertyValues.of("opentracing.spring.cloud.feign.enabled:false").applyTo(context);
  context.refresh();
  String[] feignContextBeans = context.getBeanNamesForType(TraceFeignContext.class);
  assertThat(feignContextBeans.length, is(0));
}
 

@Test
public void disableJmsTracing() {
  AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
  context.register(TracerConfig.class, JmsAutoConfiguration.class);
  TestPropertyValues.of("opentracing.spring.cloud.jms.enabled:false").applyTo(context);
  context.refresh();
  String[] tracingJmsTemplateBeans = context.getBeanNamesForType(TracingJmsTemplate.class);
  assertThat(tracingJmsTemplateBeans.length, is(0));
}