未管理类使用spring管理类

@Component
public class SpringApplicationContextHolder implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringApplicationContextHolder.applicationContext(applicationContext);
    }

    public static void applicationContext(ApplicationContext applicationContext) {
        SpringApplicationContextHolder.applicationContext = applicationContext;
    }

    public static ApplicationContext applicationContext() {
        return applicationContext;
    }

}

使用：

SpringApplicationContextHolder.applicationContext().getBean(ExcelTemplateMapper.class);