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

关键字: spring beanfactory
在web application 调用Spring的Beanfactory

1)配置web.xml
Java代码
<?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> 

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

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
Java代码
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); 

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