读取Spring配置文件的3种方式

public void init() throws ServletException {
WebApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
sinaService = (SinaService) context.getBean("sinaService");
}

public static void main(String[] args) {
//说明：applicationContext.xml文件在src目录下
ApplicationContext context = new FileSystemXmlApplicationContext("src\\applicationContext.xml");
//下面这个也可以
//      ApplicationContext context = new FileSystemXmlApplicationContext("src/applicationContext.xml");
SinaService sina = (SinaService)context.getBean("sinaService");
System.out.println(sina);
}

public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
//在此种方式下"src/applicationContext.xml"或"src\\applicationContext.xml"都不行
SinaService sina = (SinaService)context.getBean("sinaService");
System.out.println(sina);
}