知识大全 Spring中的service之间如何调用

Posted 2022-07-18 知

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在基于struts+spring+hibernate的开发框架下一般service都是直接通过在Struts的action中getBean( yourServiceName )来获取那么如果在serviceA中想调用serviceB中的方法该如何呢？直接new 一个serviceB是不行的因为里面可能还有依赖注入的dao等其他本来需要容器管理的资源可以象在action中一样getBean()么？获得applicationContext就可以了 AppContext public class AppContext private static ApplicationContext applicationContext; public static ApplicationContext getApplicationContext() return applicationContext; public static void setApplicationContext( ApplicationContext applicationContext) AppContext applicationContext = applicationContext;

　　SpringService

public class SpringBeanService private static SpringBeanService instance; private ApplicationContext applicationContext; public static synchronized SpringBeanService getInstance() if (instance == null) instance = new SpringBeanService(); return instance; public ApplicationContext getApplicationContext() return this applicationContext; public void setApplicationContext(ApplicationContext applicationContext) this applicationContext = applicationContext; public UserService getUserService() return (UserService)AppContext getApplicationContext() getBean( userService ); public class ConfigLoadListener implements ServletContextListener public void contextInitialized(ServletContextEvent contextEvent) try WebApplicationContext context =WebApplicationContextUtils getRequiredWebApplicationContext(contextEvent getServletContext()); AppContext setApplicationContext(context); //读配置 try ServletContext context =contextEvent getServletContext(); String path=context getInitParameter( setting properties ); InputStream in =context getResourceAsStream(path); Properties properties = new Properties(); properties load(in); GlobalConstant setCmdbProperties(properties); in close(); catch (IOException e) e printStackTrace(); catch (HibernateException e) System out println( 系统无法初始化异常退出 ); System out println(e); public void contextDestroyed(ServletContextEvent contextEvent) cha138/Article/program/Java/ky/201311/28919