Vue2.0 axios前后端登陆拦截器(实例讲解)(2)

import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import com.lovnx.gateway.po.User;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor extends HandlerInterceptorAdapter{

  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    String requestUri = request.getRequestURI();
    String contextPath = request.getContextPath();

    if (requestUri.indexOf("/login.html") > -1 || requestUri.indexOf("/system/login") > -1) {
      return true;
    }

    User user = (User)request.getSession().getAttribute("user");
    if(user == null){
      // 未登录跳转到login页面！");
        response.sendRedirect(contextPath + "/login.html");
      return false;
    }else
      return true;
  }

}