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：