/**
 * Created with IntelliJ IDEA.
 *
 * @Auther: zp
 * @Date: 2021/03/26/13:32
 * @Description: 通過beanFactory獲取spring管理的bean對象工具類
 */
@Component
public class ApplicationContextUtil implements ApplicationContextAware {
    private static ApplicationContext context;
 
    // springboot加載完成后會把beanfactory作為參數傳給次方法，然后我們可以把工廠賦值給context。
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        context = applicationContext;
    }
    // 通過context獲取bean
    public static Object getBean(String beanName) {
        return context.getBean(beanName);
    }
}

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
import com.authstr.ff.utils.exception.Assert;
@Component
public class SpringUtils implements ApplicationContextAware {
    private static Log log = LogFactory.getLog(SpringUtils.class);
    private static ApplicationContext applicationContext;
    public   void setApplicationContext(ApplicationContext applicationContext) {
        SpringUtils.applicationContext = applicationContext;
    }
    private static ApplicationContext getContext() {
        return applicationContext;
    }
    public static Object getBean(String beanId) {
        return SpringUtils.getBean(Object.class, beanId);
    }
    public static <T> T getBean(Class<T> clazz, String beanId) throws ClassCastException {
        ApplicationContext context = SpringUtils.getContext();
        Assert.isTrue(StringUtils.hasText(beanId), "beanId must not null!",true);
        boolean a=context.containsBean(beanId);
        Assert.isTrue(context.containsBean(beanId), "beanId :[" + beanId + "] is not exist!",true);
        Object bean = null;
        bean = context.getBean(beanId);
        return (T)bean;
    }
}

@Component("basicDaoImpl")
public class BasicDaoImpl extends AbstractDao implements BasicDao

public BasicDaoImpl getBasicDaoImpl (){
        return SpringUtils.getBean(BasicDaoImpl .class, "basicDaoImpl");
    }

@Autowired 
private BasicDaoImpl basicDaoImpl;

@Bean
  public AuthInterceptor authInterceptor(){
        return new AuthInterceptor();
    }

public static AuthInterceptor authInterceptor;

  @PostConstruct
    public void init() {
        authInterceptor= this;
        AuthInterceptor .authInterceptor= this.authInterceptor;
    }