从spring获取对象

淩亂°似流年 2022-10-20 13:41 153阅读 0赞

### 1. 工具方法 ###

import org.springframework.beans.BeansException;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.stereotype.Component;
    
    /** * Spring工具类,获取Spring上下文对象等 * */
    @Component
    public class SpringContextUtil implements ApplicationContextAware { 
    
        private static ApplicationContext applicationContext = null;
    
        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 
            if(SpringContextUtil.applicationContext == null){ 
                SpringContextUtil.applicationContext  = applicationContext;
            }
        }
    
        public static ApplicationContext getApplicationContext() { 
            return applicationContext;
        }
    
        public static Object getBean(String name){ 
            return getApplicationContext().getBean(name);
        }
    
        public static <T> T getBean(Class<T> clazz){ 
            return getApplicationContext().getBean(clazz);
        }
    
        public static <T> T getBean(String name,Class<T> clazz){ 
            return getApplicationContext().getBean(name, clazz);
        }
    }

### 2.示例 ###

public IService getCommonService(Class serviceClazz) { 
            return (IService) SpringContextUtil.getBean(serviceClazz);
        }
    
        public PSSAutomationService getPssAutomationService() { 
            return SpringContextUtil.getBean(PSSAutomationService.class);
        }

### 3. 用法 ###

QueryWrapper<PssDetail> wrapper = new QueryWrapper<>();
            wrapper.eq(PssIntelligence.FIELD_PSS_ID_KEY, pssId);
            wrapper.eq(PssIntelligence.FIELD_XCVR_KEY, Pss.xcvrAll);
            wrapper.in(PssIntelligence.FIELD_FACTORY_KEY, factoryList);
            wrapper.in(PssIntelligence.FIELD_PROCESS_KEY, processList);
            wrapper.in(PssIntelligence.FIELD_REGION_KEY, regionList);
            if (!customerList.contains(Pss.all)) { 
                wrapper.in(PssIntelligence.FIELD_CUSTOMER_KEY, customerList);
            }
            List<PssDetail> pssDetails = this.commonManager.getCommonService(PSSDetailService.class).list(wrapper);
            return pssDetails;