详解SpringMVC中设置静态资源不被拦截的问题

@Override 
public boolean preHandle(HttpServletRequest request, 
  HttpServletResponse response, Object handler) throws Exception { 
 String url=request.getRequestURI(); 
 System.out.println(url); 
 String method=request.getMethod(); 
  //判断是否在做登录操作 
 if(url.indexOf("/login")>=0&&method.equalsIgnoreCase("post")){ 
   return true; 
 } 
    //判断是否在做注册操作 
    if(url.indexOf("/toAddUserPage")>=0){ 
  return true; 
 } 
  //如果时登录用户则可以进行下一步操作 返回true 
 HttpSession session=request.getSession(); 
 User user=(User) session.getAttribute("user"); 
 if(user!=null){ 
       //登录之后不能使用登录操作和注册操作 
       if(url.indexOf("/toLogin")>=0||url.indexOf("/toAddUserPage")>=0){ 
   request.getRequestDispatcher("/WEB-INF/jsp/index.jsp").forward(request, response); 
   return false; 
  } 
  return true; 
 } 
 //其他操作直接返回到登录页面 
 request.getRequestDispatcher("/WEB-INF/jsp/user/login.jsp").forward(request, response); 
 return false; 
} 

 
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  springmvc 
  org.springframework.web.servlet.DispatcherServlet 
   
   
   contextConfigLocation 
   classpath:springmvc.xml