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>

 

 

 

 

 

 

转载于:https://www.cnblogs.com/bchange/p/9182014.html