在servlet类 通过SSH 访问数据并保存数据.

自己重写一个ContextLoaderListener ，然后配置在web.xml替代ContextLoaderListener

Java代码  

public class SpringLoaderListener extends ContextLoaderListener {   
  
    @Override  
    public void contextInitialized(ServletContextEvent event) {   
           
        super.contextInitialized(event);   
        ServletContext context = event.getServletContext();   
        ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(context);   
        SpringContextUtil.setApplicationContext(ctx);   
    }   
  
}  

 

后面就是一个操作SpringContextUtil

Java代码

public class SpringContextUtil {   
    private static ApplicationContext context;   
    
    public static void setApplicationContext(ApplicationContext acx) {   
        context = acx;   
    }   
  
    public static ApplicationContext getApplicationContext() {   
        return context;   
    }   
  
    public static Object getBean(String name) throws BeansException {   
        return context.getBean(name);   
    }   
  
  
    public static Object getBean(String name, Class requiredType) throws BeansException {   
        return context.getBean(name, requiredType);   
    }   
  
    public static boolean containsBean(String name) {   
        return context.containsBean(name);   
    }   
  
    public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException {   
        return context.isSingleton(name);   
    }   
  
    public static Class getType(String name) throws NoSuchBeanDefinitionException {   
        return context.getType(name);   
    }   
  
    public static String[] getAliases(String name) throws NoSuchBeanDefinitionException {   
        return context.getAliases(name);   
    }   
}  

 

你可以在servlet里通过该Utils工具方法可以得到你想要的bean，dao或者service 
然后就可以操作数据库了