spring启动加载类,手动加载bean

方法一：

 

public final class Assembler implements BeanFactoryPostProcessor { private static ConfigurableListableBeanFactory beanFactory; // Spring应用上下文环境
     public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { Assembler.beanFactory = beanFactory; initMerchant(); }

 

实现该接口，可以在spring的bean创建之前，修改bean的定义属性。

也就是说，Spring允许BeanFactoryPostProcessor在容器实例化任何其它bean之前读取配置元数据，并可以根据需要进行修改

 手动注册bean：

 private static ConfigurableListableBeanFactory beanFactory; // Spring应用上下文环境 DefaultListableBeanFactory beanFactory2 = (DefaultListableBeanFactory) beanFactory; BeanDefinitionBuilder beanMer = BeanDefinitionBuilder.genericBeanDefinition(className); beanMer.setParentName(beanType); beanMer.addPropertyValue("mrchCode", corgNum); beanMer.addPropertyValue("connectionName", beanName); beanMer.setInitMethodName("init"); beanMer.setInitMethodName("isMerchantOpen"); beanName = beanType + "_" + corgNum; beanFactory2.registerBeanDefinition(beanName, beanMer.getRawBeanDefinition());

方法二：

public class InitConfig extends HttpServlet implements ServletContextListener { @Override public void contextDestroyed(ServletContextEvent arg0) { logger.info("销毁。。。。"); timer.cancel(); } @Override public void contextInitialized(ServletContextEvent arg0) { logger.info("初始化。。。。"); //手动让spring容器管理此类 SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this); } <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <listener>
    <listener-class>jsfirst.weixin.InitConfig</listener-class>
  </listener>