jwt实现

<?php

namespace app\admin\controller;

use think\Config;
use think\Controller;
use think\Request;
use think\cache\driver\Redis;

/**
 * Class Base
 * @package app\admin\controller
 */
class Base extends Controller
{
    /**
     * Base constructor.
     * @param Request|null $request
     */
    public function __construct(Request $request = null)
    {
        not_region(true);//允许
        parent::__construct($request);
    }

    static function getAdminKey()
    {
        $admin_key = Config::get('key')["admin_key"];
        return $admin_key;
    }

    /**
     * @var
     */
    protected $head;

    /**
     * @var
     */
    protected $payload;

    /**
     * @param string $iss 发行者
     * @param string $exp 过期时间
     * @param $uid int 用户id
     * @return array
     */
    protected function payload($uid)
    {
        $this->payload = [
            'iss'=>request()->domain(),
            'exp'=>time(),
            'uid'=>$uid,
        ];
        return  $this->payload;
    }

    protected function head()
    {
        $this->head = [
            'type'=>"JWT",
            'alg'=>'HA256',
        ];
        return $this->head ;
    }

    /**

     * @param $str
     * @return string
     */
    static function baseEn($str)
    {
        return  base64_encode($str);
    }

    /**
     * @param $str
     * @return string
     */
    static function baseDe($str)
    {
        return base64_decode($str);
    }

    /**
     * @param $strdata
     * @return string
     */
    static function hash_hmac($strdata)
    {
        $hashSha256 = self::baseEn(hash_hmac("sha256",$strdata,"secret",true));
        return $hashSha256;
    }

    /**
     * @param array $head $this->head();/other
     * @param array $payload $this->payload();/other
     * @return string
     */
    static function base64_meger($head=[],$payload=[],$redis)
    {
        $new_arr = [];
        foreach (func_get_args() as $keies)
        {
            if(is_array($keies)){
                $new_arr[] = self::baseEn(json_encode($keies));
            }
        }
        $new_signature = implode('.',$new_arr);
//        ----------- 签名生成------
        $signature = self::hash_hmac($new_signature);
//        ------------保存签名------
        self::setRedis($redis,$signature);
        $token = $new_signature.'.'.$signature;

        return $token;
    }

    /**
     *
     * @param Redis $redis
     * @param $signature
     * @return bool
     */
    protected static function  setRedis($redis,$signature)
    {
        return $redis->set(self::getAdminKey(),$signature);
    }

}

实现：

<?php
namespace app\admin\controller;

use think\cache\driver\Redis;

/**
 * Class Index
 * @package app\admin\controller
 */
class Index extends Base
{
    public function index(Redis $redis)
    {
        $token = $this::base64_meger($this->head(),$this->payload(2),$redis);
        return $token;
    }
}

输出：