Spring的Beanfactory在jsp,servlet,web.xml等的配置

在web application 调用Spring的Beanfactory

1)配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
 <context-param>
  <param-name>contextConfigLocation</param-name>
     <!-- 配置加载的bean factory xml -->
  <param-value>
   WEB-INF/applicationContext*.xml
   classpath:applicationContext-datasource.xml
   classpath:applicationContext-hibernate.xml
   classpath:applicationContext-dao.xml
   classpath:applicationContext-service.xml
  </param-value>
 </context-param>
 <listener>
  <listener-class>
   org.springframework.web.context.ContextLoaderListener
  </listener-class>
 </listener>
</web-app>

2)Jsp页面中调用spring

org.springframework.beans.factory.BeanFactory beanFactory = (org.springframework.beans.factory.BeanFactory) 
pageContext.getServletContext().getAttribute(org.springframework.web.context.WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);

3)Servlet中调用spring

ServletContext context = this.getServletContext();
org.springframework.beans.factory.BeanFactory beanFactory = (org.springframework.beans.factory.BeanFactory) 
context.getAttribute(org.springframework.web.context.WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);

4)ClassPath加载

ApplicationContext beanFactory = new ClassPathXmlApplicationContext(
    new String[] { "applicationContext-datasource.xml",
      "applicationContext-hibernate.xml",
      "applicationContext-service-freemarker.xml",
      "applicationContext-service.xml"
    });