<?php
namespace app\validate;

use think\Validate;

class Test extends Validate
{
    protected $rule = [
        'district_id|所属区域' => 'require',
        'name'                => 'unique:system_community,district_id=1&name=2'
    ];
}

<?php
namespace app\controller;

use app\BaseController;
use app\validate\Test;

class Index extends BaseController
{
    public function index()
    {
        $validate = validate(Test::class)->check([
            'district_id' => '1',
            'name'        => 'zs',
        ]);
        dump($validate);
    }
}