Java实现普通类注入service对象

WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
DailySurveyService service = (DailySurveyService) context.getBean("dailySurveyService");

/** 
 * 通过该类即可在普通工具类里获取spring管理的bean 
 * @author wolf 
 * 
 */  
public final class SpringTool implements ApplicationContextAware {  
    private static ApplicationContext applicationContext = null;  
  
    @Override  
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {  
        if (SpringTool.applicationContext == null) {  
            SpringTool.applicationContext = applicationContext;  
            System.out.println(  
                    "========ApplicationContext配置成功,在普通类可以通过调用ToolSpring.getAppContext()获取applicationContext对象,applicationContext="  
                            + applicationContext + "========");  
        }  
    }  
  
    public static ApplicationContext getApplicationContext() {  
        return applicationContext;  
    }  
  
    public static Object getBean(String name) {  
        return getApplicationContext().getBean(name);  
    }  
}  

<bean class="app.util.spring.SpringTool"/>

import app.util.spring.SpringTool;  
public class Test {  
      
    public void print() {  
        ArticleService articleService = (ArticleService) SpringTool.getBean("articleService");  
        Article article = articleService.queryById(756);  
        System.out.println(article.getTitle());  
    }  
}