在不使用Singleton的情况下从非bean对象获取Spring Application上下文

import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class ApplicationContextProvider implements ApplicationContextAware {

    private static ApplicationContext context;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        context = applicationContext;
    }

    public static ApplicationContext getApplicationContext() {
        return context;
    }
}

import org.springframework.context.ApplicationContext;

public class NonBeanClass {

    public void someMethod() {
        ApplicationContext context = ApplicationContextProvider.getApplicationContext();
        // 使用 ApplicationContext 进行后续操作
    }
}

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

public class NonBeanClass {

    public void someMethod(ServletContext servletContext) {
        WebApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(servletContext);
        // 使用 WebApplicationContext 进行后续操作
    }
}

import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;

public class ApplicationContextListener implements ApplicationListener<ContextRefreshedEvent> {

    private static ApplicationContext context;

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        context = event.getApplicationContext();
    }

    public static ApplicationContext getApplicationContext() {
        return context;
    }
}

import org.springframework.context.ApplicationContext;

public class NonBeanClass {

    public void someMethod() {
        ApplicationContext context = ApplicationContextListener.getApplicationContext();
        // 使用 ApplicationContext 进行后续操作
    }
}