Spring-boot使用dubbo时ERROR 8404 o.s.boot.SpringApplication：Application run failed

 报错如上图所示

结果仔细查看报错信息后，发现：

at demo0929.UserServiceApplication.main(UserServiceApplication.java:12) ~[classes/:na]

 包扫描配置的格式有误，正确格式如下图：

import org.apache.dubbo.config.spring.context.annotation.DubboComponentScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
// 用在服务的提供方
@DubboComponentScan(basePackages = {"demo0929.service"})
public class UserServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(UserServiceApplication.class,args);
    }
}

然后再删除一下target里面的缓存