package mis.interceptor; import org.springframework.util.StringUtils; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class SpringMVCInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception { if(request.getServletPath().startsWith("/index") || request.getServletPath().startsWith("/login")) { return true; } String username = (String)request.getSession().getAttribute("userName"); if (StringUtils.isEmpty(username)){ response.sendRedirect(request.getContextPath() + "/index"); return false; } return true; } @Override public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception { } @Override public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception { } }