在main方法中初始化spring环境，注入bean

public static void main(String[] args) {

    LOGGER.info("==启动APP日志队列程序==");
    SpringUtils.getBean(UserAppLogConsumerListener.class);
}

　　一开始我是使用自定义的spring工具类的getBean方法进行初始化，但是存在问题：配置文件中用有引用UserAppLogConsumerListener这个bean，导致报错expected single matching bean but found 2

Exception in thread "main" org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type ‘com.cdd.rabbitmq.consume.listener.UserAppLogConsumerListener‘ available: expected single matching bean but found 2: userAppLogConsumerListener,userAppReceiver
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1039)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:339)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:334)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1107)
    at com.cdd.core.utils.SpringUtils.getBean(SpringUtils.java:28)
    at com.cdd.rabbitmq.consume.Main.main(Main.java:23)

　　然后换了一种方式，直接根据配置文件加载ApplicationContext，成功

public static void main(String[] args) {

    LOGGER.info("==启动APP日志队列程序==");
//    SpringUtils.getBean(UserAppLogConsumerListener.class);
    ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
}

原文地址：https://www.cnblogs.com/volcano-heaven/p/9283677.html