spring Boot异步操作报错误: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.self.spring.springboot.Jeep' available

我也是最近开始学习Spring Boot,在执行异步操作的时候总是汇报如下的错误:

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: 
No qualifying bean of type 'com.self.spring.springboot.Jeep' available
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:353)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1090)
at com.self.spring.springboot.App.main(App.java:24)

 我运行的代码如下:

Jeep类:
import java.util.concurrent.TimeUnit;

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component; @Component
public class Jeep implements Runnable {

  //异步注解
@Async
public void run() {
try {
for(int i=1;i<=10;i++){
System.out.println("==============" + i);
TimeUnit.SECONDS.sleep(1);
}
} catch (Exception e) {
e.printStackTrace();
}
} }

main类:

@EnableAutoConfiguration
//使@Async注解生效
@EnableAsync
@ComponentScan
public class App { public static void main(String[] args) {
ConfigurableApplicationContext context = SpringApplication.run(App.class, args);
System.out.println(context.getBean(TomcatProperties.class));
context.getBean(Jeep.class).run();
System.out.println("===========end===========");
context.close(); } }

错误分析:错误提示没有这个 com.self.spring.springboot.Jeep' available,但是已经存在这个类,后来查询了一会,非异步操作的时候,我们通过context.getBean(类名.class)来调用这个类里面的方法,但是在异步操作的时候,调用Jeep类实现了接口Runnable的方法,我们调用context.getBean(Runnable.class).run(),才会正常运行不报错。。

其实我也不得解答,如果有哪位高手看到了,请给我留言,已解我心中之谜。。。。

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