对每一行进行注释：RequestMappingpage public R pageRequestParam MapString Object paramsJiezhongyuyueEntity jiezhongyuyue HttpServletRequest request String tableName = requestgetSessiongetAttributetableName

// 使用@RequestMapping注解将该方法映射到"/page"的URL路径 public R page(@RequestParam Map<String, Object> params,JiezhongyuyueEntity jiezhongyuyue, HttpServletRequest request){ // 从session中获取表名 String tableName = request.getSession().getAttribute("tableName").toString(); // 如果表名是"yonghu"，则设置预约记录的账号为当前用户的用户名 if(tableName.equals("yonghu")) { jiezhongyuyue.setZhanghao((String)request.getSession().getAttribute("username")); } // 创建一个EntityWrapper对象 EntityWrapper ew = new EntityWrapper(); // 调用jiezhongyuyueService的queryPage方法，将params和查询条件作为参数，返回一个PageUtils对象 PageUtils page = jiezhongyuyueService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, jiezhongyuyue), params), params)); // 返回一个R对象，其中包含查询结果数据 return R.ok().put("data", page);