doufire_php/app/api/controller/ApiController.php

<?php
namespace app\api\controller;

use think\response\Json;
use think\route\dispatch\Controller;
use think\Request;

/**
 * API接口基类控制器
 * Class ApiController
 * @package app\api\controller
 */
abstract class ApiController {
        /**
     * Request实例
     * @var Request
     */
    protected $request;
    /**
     * 返回封装后的 API 数据到客户端
     * @param int|null $status
     * @param string $message
     * @param array $data
     * @return Json
     */
    protected final function renderJson(int $status = null, string $message = '', array $data = []): Json
    {
        return json(compact('status', 'message', 'data'));
    }

    /**
     * 返回操作成功json
     * @param array|string $data
     * @param string $message
     * @return Json
     */
    protected final function renderSuccess($data = [], string $message = 'success'): Json
    {
        if (is_string($data)) {
            $message = $data;
            $data = [];
        }
        return $this->renderJson(config('status.success'), $message, $data);
    }

    /**
     * 返回操作失败json
     * @param string $message
     * @param array $data
     * @return Json
     */
    protected final function renderError(string $message = 'error', array $data = []): Json
    {
        return $this->renderJson(config('status.error'), $message, $data);
    }

    /**
     * 获取post数据 (数组)
     * @param null $key
     * @param bool $filter
     * @return mixed
     */
    protected final function postData($key = null, bool $filter = false)
    {
        return $this->request->post(empty($key) ? '' : "{$key}/a", null, $filter ? '' : null);
    }

    /**
     * 获取post数据 (数组)
     * @param string|null $key
     * @param bool $filter
     * @return mixed
     */
    protected final function postForm(?string $key = 'form', bool $filter = true)
    {
        return $this->postData(empty($key) ? 'form' : $key, $filter);
    }
}