攔截器：

public class LoginInterceptor implements HandlerInterceptor{
    
    private static final Log log = LogFactory.getLog(LoginInterceptor.class);  
    
    @Override
public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3) throws Exception {
        
    }
    
    @Override
 
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3) throws Exception {
        
    }
    
    @Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception {
        LoginUserVO vo = (LoginUserVO)request.getSession().getAttribute("user"
 
);
        if(vo==null||StringUtils.isBlank(vo.getMobile())){
            response.setHeader("Content-Type", "text/plain;charset=utf-8");
            response.getWriter().write(JSONObject.toJSONString(RestResponseUtil.err(-10, "使用者未登入,請登入後重試")));
            return false;
        }
        return true
 
;
    }
}

攔截配置類：

對所有方法（/**）進行攔截，排除/licardUser/loginRegister方法

@Configuration
public class MvcInterceptorConfig extends WebMvcConfigurerAdapter {
    @Override
public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/licardUser/loginRegister");;
    }
}