package org.springblade.jfpt.interceptor;
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import org.springblade.jfpt.equipment.service.IEquipmentService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.ModelAndView;
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import javax.annotation.PostConstruct;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* 设备管理拦截器，管理设备的在线状态
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* @author zhongrj
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* @time 2021-5-7
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*/
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@Component
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public class EquipmentInterceptor implements HandlerInterceptor {
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@Autowired
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private IEquipmentService iEquipmentService;
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public static EquipmentInterceptor equipmentInterceptor;
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@PostConstruct
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public void init(){
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equipmentInterceptor = this;
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}
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/**
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* 拦截所有的设备查询操作，在此之前做更新设备状态的操作
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* @param request 请求域
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* @param response 响应域
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* @param handler 处理器
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* @return
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* @throws Exception 异常
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*/
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
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//更新设备状态
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equipmentInterceptor.iEquipmentService.updateEquipmentDtype();
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//放行
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return true;
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}
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@Override
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public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
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}
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
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}
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}
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