composer require firebase/php-jwt

composer require topthink/think-multi-app

<?php
// 應(yīng)用公共文件
use \Firebase\JWT\JWT;
use Firebase\JWT\Key;//在這個(gè)類的參數(shù)這里踩了坑，可惡
//生成驗(yàn)簽
function signToken($data) :string
{
    $key='LAL@lc!';         //這里是自定義的一個(gè)隨機(jī)字串，應(yīng)該寫(xiě)在config文件中的，解密時(shí)也會(huì)用，相當(dāng)于加密中常用的 鹽-salt
    $token=array(
        "iss"=>$key,        //簽發(fā)者 可以為空
        "aud"=>'',          //面象的用戶，可以為空
        "iat"=>time(),      //簽發(fā)時(shí)間
        "nbf"=>time()+3,    //在什么時(shí)候jwt開(kāi)始生效  （這里表示生成100秒后才生效）
        "exp"=> time()+7200, //token 過(guò)期時(shí)間
        "data"=>$data           //記錄的userid的信息，這里是自已添加上去的，如果有其它信息，可以再添加數(shù)組的鍵值對(duì)
    );
    return JWT::encode($token, $key, "HS384");  //根據(jù)參數(shù)生成了token，可選：HS256、HS384、HS512、RS256、ES256等
}
//驗(yàn)證token
function checkToken($token) :array
{
    $key='LAL@lc!';
    $status=array("code"=>2);
    try {
        JWT::$leeway = 60;//當(dāng)前時(shí)間減去60，把時(shí)間留點(diǎn)余地
        $decoded = JWT::decode($token, new Key($key, 'HS384') ); //同上的方式，這里要和簽發(fā)的時(shí)候?qū)?yīng)
        $arr = (array)$decoded;
        $res['code']=200;
        $res['data']=$arr['data'];
        $res['data'] = json_decode(json_encode($res['data']),true);//將stdObj類型轉(zhuǎn)換為array
        return $res;
    } catch(\Firebase\JWT\SignatureInvalidException $e) { //簽名不正確
        $status['msg']="簽名不正確";
        return $status;
    }catch(\Firebase\JWT\BeforeValidException $e) { // 簽名在某個(gè)時(shí)間點(diǎn)之后才能用
        $status['msg']="token失效";
        return $status;
    }catch(\Firebase\JWT\ExpiredException $e) { // token過(guò)期
        $status['msg']="token失效";
        return $status;
    }catch(Exception $e) { //其他錯(cuò)誤
        $status['msg']="未知錯(cuò)誤";
        return $status;
    }
}

<?php
namespace app\index\controller;
use app\BaseController;
use think\facade\Request;
use think\response\Json;
class Index extends BaseController
{
    /**
     * 模擬將數(shù)組類型的數(shù)據(jù)加密然后得到token
     * @return string
     */
    public function index() :string
    {
        $user = ['id'=>521,'openid'=>'123456789'];
        $user['token'] = signToken($user);  
        return $user['token'];
    }
    /**
     * 解密token的數(shù)據(jù)并返回
     * @return Json
     */
    public function checkIt() :Json
    {
        $token = Request::header()['token']??false;
        if(!$token)
            return json(['code'=>201,'msg'=>'缺少必要參數(shù):token']);
        $userinfo = checkToken($token);
        if($userinfo['code']!=200)
            return json(['code'=>202,'msg'=>'token驗(yàn)證失敗']);
        return json($userinfo);
    }
}

<?php
namespace app\index\controller;
use app\BaseController;
use think\facade\Db;
use think\response\Json;
class Index extends BaseController
{
    /**
     * 模擬登陸接口的成功情況，將用戶關(guān)鍵信息加密到token再返回給前端
     * @return Json
     */
    public function wxLogin():Json
    {
        $userinfo = ['id'=>1,'openid'=>'123456789'];
        $token = ['token'=>signToken($userinfo)];
        return json(['code'=>200,'msg'=>'success to login','data'=>$token]);
    }
    /**
     * 模擬需要驗(yàn)證token的方法做點(diǎn)事
     * @return Json
     */
    public function toDo() :Json
    {
        $user = request()->userInfo;
//        $userinfo = Db::name('user')
//            ->where('id',$user['id']) //可以使用這些信息搜索某些關(guān)鍵信息
//            ->findOrEmpty();
        return json(['code'=>200,'msg'=>'u can use the data to search some information or do something','data'=>$user]);
    }
}

<?php
namespace app\middleware;
use think\Exception;
use \think\facade\Request;
class CheckToken
{
    public function handle($request, \Closure $next)
    {
        try {
            $token = Request::header()['token']??false;
            if(!$token)
                throw new Exception('Without Token',201);
            $userinfo = checkToken($token);
            if($userinfo['code'] != 200)
                throw new Exception('Token checked error',202);
//          $userinfo['data']['token'] = $token;
            $request->userInfo = $userinfo['data'];
        }
        catch (Exception $err){
            return json(['code'=>$err->getCode(),'msg'=>$err->getMessage()]);
        }
        return $next($request);
    }
}

<?php
use think\facade\Route;
Route::group(function (){    //需要經(jīng)過(guò)checkToken驗(yàn)證的接口
    Route::post('toDo','/toDo');
})->prefix(\app\index\controller\Index::class)->middleware(app\middleware\CheckToken::class);
Route::group(function(){    //單純的路由~
    Route::post('wxLogin','/wxLogin');
})->prefix(\app\index\controller\Index::class);