spring为ApplicationContext提供的3种实现分别为:ClassPathXmlApplicationContext,
FileSystemXmlApplicationContext和XmlWebApplicationContext,其中
XmlWebApplicationContext是专为Web工程定制的。使用举例如下:
1. FileSystemXmlApplicationContext

Java代码 复制代码
  1. eg1.
  2. pplicationContext ctx = new FileSystemXmlApplicationContext(“bean.xml”); //加载单个配置文件

Java代码 复制代码
  1. eg2.
  2. String[] locations = {“bean1.xml”, “bean2.xml”, “bean3.xml”};
  3. ApplicationContext ctx = new FileSystemXmlApplicationContext(locations ); //加载多个配置文件

Java代码 复制代码
  1. eg3.
  2. ApplicationContext ctx =new FileSystemXmlApplicationContext(“D:roject/bean.xml”);//根据具体路径加载文件


2. ClassPathXmlApplicationContext

Java代码 复制代码
  1. eg1.
  2. pplicationContext ctx = new ClassPathXmlApplicationContext(“bean.xml”);

Java代码 复制代码
  1. eg2.
  2. String[] locations = {“bean1.xml”, “bean2.xml”, “bean3.xml”};
  3. ApplicationContext ctx = new ClassPathXmlApplication(locations);
  4. 注:其中FileSystemXmlApplicationContext和ClassPathXmlApplicationContext与BeanFactory的xml文件定位方式一样是基于路径的。 
 eg2.
String[] locations = {"bean1.xml", "bean2.xml", "bean3.xml"};
ApplicationContext ctx = new ClassPathXmlApplication(locations);
注:其中FileSystemXmlApplicationContext和ClassPathXmlApplicationContext与BeanFactory的xml文件定位方式一样是基于路径的。</pre>

3. XmlWebApplicationContext

Java代码 复制代码
  1. eg1.
  2. ServletContext servletContext = request.getSession().getServletContext();
  3. ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext);

Leave a Reply

电子邮件地址不会被公开。 必填项已用*标注