spring带bean和config如何通过main启动测试

package com.xxx.tmp;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class Main {
    public static void main(final String[] args) {
        final AnnotationConfigApplicationContext applicationContext =
                new AnnotationConfigApplicationContext(SyncService.class);
        final SyncService bean = applicationContext.getBean(SyncService.class);
//        final SyncService bean = SpringContextHolder.getBean(SyncService.class);
        for (int i = 0; i < 100; i++) {
            bean.test(i);
        }
    }
}

package com.xxx.tmp;
import org.springframework.stereotype.Component;
@Component
public class SyncService {
    //    @Async
    public void test(final int i) {
        System.out.println(Thread.currentThread().getName() + "——" + i);
    }
}

package com.xxx.tmp;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import java.lang.reflect.Method;
import java.util.concurrent.Executor;
@Configuration
@EnableAsync
@ComponentScan("com.xxx.tmp")
public class AsyncConfig implements AsyncConfigurer {
    @Override
    public Executor getAsyncExecutor() {
        final ThreadPoolTaskExecutor threadPoolTaskExecutor = new ThreadPoolTaskExecutor();
        threadPoolTaskExecutor.setCorePoolSize(10);
        threadPoolTaskExecutor.setMaxPoolSize(50);
        threadPoolTaskExecutor.setQueueCapacity(50);
        threadPoolTaskExecutor.setKeepAliveSeconds(1);
        threadPoolTaskExecutor.initialize();
        return threadPoolTaskExecutor;
    }
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return new AsyncUncaughtExceptionHandler() {
            @Override
            public void handleUncaughtException(final Throwable throwable, final Method method, final Object... objects) {
                System.out.println("出现异常啦~~~~~~");
            }
        };
    }
}