使用一个util类 SpringUtil ,这个类放在和springboot启动类同包下。
import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component; /** * 普通类调用Spring bean对象: * 说明: * 1、此类需要放到App.java同包或者子包下才能被扫描,否则失效。 * @author Administrator */ @Component public class SpringUtil implements ApplicationContextAware{ private static ApplicationContext applicationContext = null; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { if(SpringUtil.applicationContext == null){ SpringUtil.applicationContext = applicationContext; } System.out.println("---------------------------------------------------------------------"); System.out.println("---------------------------------------------------------------------"); System.out.println("---------------com.example.order.util.SpringUtil------------------------------------------------------"); System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========"); System.out.println("---------------------------------------------------------------------"); } //获取applicationContext public static ApplicationContext getApplicationContext() { return applicationContext; } //通过name获取 Bean. public static Object getBean(String name){ return getApplicationContext().getBean(name); } //通过class获取Bean. public static <T> T getBean(Class<T> clazz){ return getApplicationContext().getBean(clazz); } //通过name,以及Clazz返回指定的Bean public static <T> T getBean(String name,Class<T> clazz){ return getApplicationContext().getBean(name, clazz); }
}
Util类创建成功之后,
在自己的类中使用
ProgramTypeService programTypeService = (ProgramTypeService) SpringUtil.getBean("programTypeService");
即可调用