监听器通过反射读取xml文件

Linster_1：监听器

要求服务器启动加载applicationContext.xml文件，通过反射Linster_1.class类获取路径

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?> <beans>      <bean id="MarketService" class="com.test.crm.service.impl.MarketServiceImpl" />      <bean id="NoteActService" class="com.test.crm.service.impl.NoteActServiceImpl" /> </beans>

路径：

public class Linster_1 implements ServletContextListener,ServletRequestListener,HttpSessionListener{     @Override     public void contextInitialized(ServletContextEvent event) {          /*           * 服务器启动创建上下文对象，只创建一个           * 关闭销毁           */           try {              System.out.println("上下文对象创建");     InputStream in = Linster_1.class.getClassLoader().getResourceAsStream("applicationContext.xml");            SAXReader reader = new SAXReader();              Document read = reader.read(in);              Element root = read.getRootElement();              List<Element> e = root.elements();              Map<String, String> map = new HashMap<>();              for (Element ee : e) {                   map.put(ee.attribute("id").getText(), ee.attribute("class").getText());              }                           event.getServletContext().setAttribute("map", map);                       } catch (DocumentException e) {              e.printStackTrace();          }     }