CakePHP4——如何創(chuàng)建一個(gè)簡(jiǎn)單的概念驗(yàn)證REST API？

如何讓一個(gè)簡(jiǎn)單的proof-of-conceptREST API在CakePHP4中工作？

我在這里和這里遵循了CakePHP烹飪手冊(cè)中的指南

目前，我的routes.php文件包含以下內(nèi)容（刪除注釋）：

<?php

use Cake\Routing\Route\DashedRoute;
use Cake\Routing\RouteBuilder;

return static function (RouteBuilder $routes) {        
    $routes->setRouteClass(DashedRoute::class);    
    $routes->scope('/', function (RouteBuilder $builder) {            
        $builder->connect('/', ['controller' => 'Pages', 'action' => 'display', 'home']);            
        $builder->connect('/pages/*', 'Pages::display');            
        $builder->fallbacks();
    });
    $routes->scope('/', function (RouteBuilder $builder) {
        $builder->setExtensions(['json']);
        $builder->resources('LocateITAPI');
    });
};

我的控制器包含以下代碼：

<?php
// src/Controller/LocateITAPIController.php
namespace App\Controller;

use App\Controller\AppController;

class LocateITAPIController extends AppController
{
    public function initialize(): void
    {
        parent::initialize();
        $this->loadComponent('RequestHandler');
    }

    public function index()
    {        
        echo json_encode(utf8_encode("LocateITAPIController::index()"));
    }

    public function view($id)
    {        
        echo json_encode(utf8_encode("LocateITAPIController::view()"));
    }

    public function add()
    {        
        echo json_encode(utf8_encode("LocateITAPIController::add()"));
    }

    public function edit($id)
    {        
        echo json_encode(utf8_encode("LocateITAPIController::edit()"));
    }

    public function delete($id)
    {        
        echo json_encode(utf8_encode("LocateITAPIController::delete()"));
    }

}

我正在嘗試使用以下瀏覽器訪問(wèn)它：

http://localhost/app/locateitapi.json

我希望看到一個(gè)JSON響應(yīng)，但我看到的是以下錯(cuò)誤：