XmlBeanFactory,ClassPathXmlApplicationContext,FileSystemXmlApplicationContext,XmlWebApplicationContext
一: XmlBeanFactory 引用资源
Resource resource = new ClassPathResource("appcontext.xml");
BeanFactory factory = new XmlBeanFactory(resource);
二: ClassPathXmlApplicationContext 编译路径
ApplicationContext factory=new ClassPathXmlApplicationContext("classpath:appcontext.xml");
// src目录下的
ApplicationContext factory=new ClassPathXmlApplicationContext("appcontext.xml");
ApplicationContext factory=new ClassPathXmlApplicationContext(new String[] {"bean1.xml","bean2.xml"});
// src/conf 目录下的
ApplicationContext factory=new ClassPathXmlApplicationContext("conf/appcontext.xml");
ApplicationContext factory=new ClassPathXmlApplicationContext("file:G:/Test/src/appcontext.xml");
三: 用文件系统的路径
ApplicationContext factory=new FileSystemXmlApplicationContext("src/appcontext.xml");
//使用了 classpath: 前缀,作为标志, 这样,FileSystemXmlApplicationContext 也能够读入classpath下的相对路径
ApplicationContext factory=new FileSystemXmlApplicationContext("classpath:appcontext.xml");
ApplicationContext factory=new FileSystemXmlApplicationContext("file:G:/Test/src/appcontext.xml");
ApplicationContext factory=new FileSystemXmlApplicationContext("G:/Test/src/appcontext.xml");
四: XmlWebApplicationContext是专为Web工程定制的。
ServletContext servletContext = request.getSession().getServletContext();
ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext );
五: 使用BeanFactory
BeanDefinitionRegistry reg = new DefaultListableBeanFactory();
XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(reg);
reader.loadBeanDefinitions(new ClassPathResource("bean1.xml"));
reader.loadBeanDefinitions(new ClassPathResource("bean2.xml"));
BeanFactory bf=(BeanFactory)reg;
六:Web 应用启动时加载多个配置文件
通过ContextLoaderListener 也可加载多个配置文件,在web.xml文件中利用
<context-pararn>元素来指定多个配置文件位置,其配置如下:
- <context-param>
- <!-- Context Configuration locations for Spring XML files -->
- <param-name>contextConfigLocation</param-name>
- <param-value>
- ./WEB-INF/**/Appserver-resources.xml,
- classpath:config/aer/aerContext.xml,
- classpath:org/codehaus/xfire/spring/xfire.xml,
- ./WEB-INF/**/*.spring.xml
- </param-value>
- </context-param>