application/index/controller/NewsController.php

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<?php
namespace app\index\controller;

use http\Params;
use think\Cache;
use think\Controller;
use think\Db;
use think\Request;
use think\Session;

class NewsController extends CommonController
{
	public function __construct()
    {
        header("Access-Control-Allow-Origin: *");
        header("Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE");
        header('Access-Control-Allow-Headers:Origin,Content-Type,Accept,token,X-Requested-With,device');
    }
	public $columData = [
        'id','addtime'
                ,'title'
                ,'introduction'
                ,'picture'
                ,'content'
            ];
    
    /**
     * 分页接口 GET
     * $page   当前页
     * $limit  每页记录的长度
     * $sort   排序字段
     * $order  升序（默认asc）或者降序（desc）
     * */
    public function page(){
        $token = $this->token();
        if (Cache::get($token) == false) return json(['code'=>500,'msg'=>"您还没有登录。"]);
        $userid = Cache::get($token);
        $base = json_decode(base64_decode($token,true),true);
        $tabnames = $base['tablename'];
        $getData = input('get.');
        $where = array();
        $betweenColumn = '';
        $start = array();
        $end = array();
        foreach ($getData as $k => $val){
			if(in_array($k, $this->columData)){
                if ($val != ''){
                    $where[$k] = ['like',$val];
                }
			}
            if(in_array(substr($k, 0, strlen($k) - 5), $this->columData)){
                if ($val != ''){
                    $betweenColumn = substr($k, 0, strlen($k) - 5);
                    $start = ['egt', $val];
                }
			} else if(in_array(substr($k, 0, strlen($k) - 3), $this->columData)){
                if ($val != ''){
                    $betweenColumn = substr($k, 0, strlen($k) - 3);
                    $end = ['elt', $val];
                }