org.springframework.boot.context.event.ApplicationPreparedEvent#getApplicationContext ( )源码实例Demo

@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
    // 获取 Spring 应用上下文
    ConfigurableApplicationContext context = event.getApplicationContext();
    // 调整 Spring 应用上下文的 ID
    context.setId("context-mercyblitz");
    System.out.println("当前 Spring 应用上下文 ID 调整为：" + context.getId());
}
 

@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
	
	ConfigurableApplicationContext context = event.getApplicationContext();
	getApplicationContext(context);
	
	logger.info("3 上下文创建完成, PreparedEventApplicationListener...");
}
 

@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
  ConfigurableApplicationContext context = event.getApplicationContext();
  ConfigurableEnvironment environment = context.getEnvironment();

  for (PropertySource propertySource : environment.getPropertySources()) {
    if (shouldWrap(propertySource)) {
      CloudConfigAwarePropertySource wrapper =
          new CloudConfigAwarePropertySource(propertySource, context);
      environment.getPropertySources().replace(propertySource.getName(), wrapper);
    }
  }
}
 

@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
    ConfigurableApplicationContext cac = event.getApplicationContext();
    System.out.println("SpringBoot上下文Context创建完成，但此时Spring中的Bean是没有完全加载完成的，得到ApplicationContext-->" + cac.getDisplayName());
}