アクセス制御

  
  
  
  

   
   
   
   
public class AuthFilter implements Filter { 
   
   
   
   
 
   
   
   
   
    @Override 
   
   
   
   
    public void destroy() { 
   
   
   
   
    } 
   
   
   
   
 
   
   
   
   
    @Override 
   
   
   
   
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, 
   
   
   
   
                         FilterChain filterChain) throws IOException, ServletException { 
   
   
   
   
        HttpServletRequest request = (HttpServletRequest) servletRequest; 
   
   
   
   
        HttpServletResponse response = (HttpServletResponse) servletResponse; 
   
   
   
   
        String currentURL = request.getRequestURI();  
   
   
   
   
        String targetURL = currentURL.substring(currentURL.indexOf("/", 1), currentURL.length());  
   
   
   
   
        HttpSession session = request.getSession(false); 
   
   
   
   
        if (!"/login/login.html".equals(targetURL)) { 
   
   
   
   
            // ， session ，  
   
   
   
   
            if (session == null || session.getAttribute("user") == null) { 
   
   
   
   
                //* session 
   
   
   
   
                response.sendRedirect(request.getContextPath() + "/page/login/login.html"); 
   
   
   
   
                // session login.jsp  
   
   
   
   
                return; 
   
   
   
   
            } 
   
   
   
   
        } 
   
   
   
   
        // filter  
   
   
   
   
        filterChain.doFilter(request, response); 
   
   
   
   
    } 
   
   
   
   
 
   
   
   
   
    @Override 
   
   
   
   
    public void init(FilterConfig arg0) throws ServletException { 
   
   
   
   
    } 
   
   
   
   
} 
  
  
  
  

  
  
  
  

   
   
   
   
<filter> 
   
   
   
   
    <filter-name>authFilter</filter-name> 
   
   
   
   
    <filter-class>com.alibaba.hummock.console.filter.AuthFilter</filter-class> 
   
   
   
   
</filter> 
   
   
   
   
<filter-mapping> 
   
   
   
   
    <filter-name>authFilter</filter-name> 
   
   
   
   
    <url-pattern>*.html</url-pattern> 
   
   
   
   
</filter-mapping>