Laravel配合jwt使用的方法实例

测试使用的是Laravel5.5版本。

安装

composer require tymon/jwt-auth=1.0.0-rc.5

配置

生成配置

php artisan vendor:publish --provider="TymonJWTAuthProvidersLaravelServiceProvider"

php artisan jwt:secret

auth配置

<?php

return [
 ...

 "defaults" => [
  "guard" => "web",
  "passwords" => "users",
 ],


 "guards" => [
  "web" => [
   "driver" => "session",
   "provider" => "users",
  ],
  // 使用jwt
  "api" => [
   "driver" => "jwt",
   "provider" => "apiUser",
  ],
 ],


 "providers" => [
  ...
  // 指定model
  "apiUser" => [
   "driver" => "eloquent",
   "model" => AppApiUser::class,
  ], 
 ],
];

编码

控制器:

<?php

namespace AppHttpControllersApi;

use AppApiUser;
use AppHttpControllersController;
use IlluminateHttpRequest;
use TymonJWTAuthFacadesJWTAuth;

class AuthController extends Controller
{
 /**
  * 中间件去除login和refresh
  *
  * @return void
  */
 public function __construct()
 {
  $this->middleware("auth:api", ["except" => ["login","refresh"]]);
 }

 /**
  * Get a JWT via given credentials.
  *
  * @return IlluminateHttpJsonResponse
  */
 public function login(Request $request)
 {
  $credentials = $request->only("phone", "password");

  if (count($credentials) < 2) {
   return response()->json(["error" => "Unauthorized"], 401);
  } 

  $user = ApiUser::where("phone", $credentials["phone"])
   ->where("password", md5($credentials["password"]))
   ->first();
  if (empty($user) || !$token = JWTAuth::fromUser($user)) {
   return response()->json(["error" => "Unauthorized"], 401);
  }
  // dd($token);

  return $this->respondWithToken($token);
 }

 /**
  * Get the authenticated User.
  *
  * @return IlluminateHttpJsonResponse
  */
 public function me()
 {
  return response()->json(auth("api")->user());
 }

 /**
  * Log the user out (Invalidate the token).
  *
  * @return IlluminateHttpJsonResponse
  */
 public function logout()
 {
  auth()->logout();

  return response()->json(["message" => "Successfully logged out"]);
 }

 /**
  * Refresh a token.
  *
  * @return IlluminateHttpJsonResponse
  */
 public function refresh()
 {
  return $this->respondWithToken(auth("api")->refresh());
 }

 /**
  * Get the token array structure.
  *
  * @param string $token
  *
  * @return IlluminateHttpJsonResponse
  */
 protected function respondWithToken($token)
 {
  return response()->json([
   "access_token" => $token,
   "token_type" => "bearer",
   "expires_in" => auth("api")->factory()->getTTL() * 60
  ]);
 }
}

路由:

此处注意,我为了方便测试,使用了get方法,生产环境不建议使用get。

// routes/api.php

Route::middleware("api")->prefix("auth")->namespace("Api")->group(function () {
 Route::get("login", "AuthController@login");
 Route::post("logout", "AuthController@logout");
 Route::get("refresh", "AuthController@refresh");
 Route::get("me", "AuthController@me");
});

测试一下:

unauthenticated处理

这里需要注意下,unauthenticated处理一下比较好,否则会默认跳转login登录页面。

<?php

namespace AppExceptions;

use Exception;
use IlluminateFoundationExceptionsHandler as ExceptionHandler;
use IlluminateAuthAuthenticationException;

class Handler extends ExceptionHandler
{
  ...

  protected function unauthenticated($request, AuthenticationException $exception)
  {
    return response()->json(["message" => "Unauthenticated."], 401);
     /*非api可以这么处理
    return $request->expectsJson()
          ? response()->json(["message" => "Unauthenticated."], 401)
          : redirect()->guest(route("login"));
          */
  }
}

加入token refresh

加入中间件代码:

<?php
namespace AppHttpMiddleware;
 
use Closure;
use TymonJWTAuthFacadesJWTAuth;
use TymonJWTAuthExceptionsJWTException;
use IlluminateAuthAuthenticationException;
use TymonJWTAuthExceptionsTokenExpiredException;
use IlluminateHttpExceptionsHttpResponseException;
use TymonJWTAuthHttpMiddlewareBaseMiddleware;

class RefreshToken extends BaseMiddleware
{

  /**
   * Handle an incoming request.
   *
   * @param IlluminateHttpRequest $request
   * @param Closure $next
   * @return mixed
   */
  public function handle($request, Closure $next)
  { 
    try{
      //检查请求中是否带有token 如果没有token值则抛出异常
      $this->checkForToken($request); 
      if ($request->user = JWTAuth::parseToken()->authenticate()) {    
        return $next($request);
      }
      throw new AuthenticationException("Unauthorized", []);
    }catch (TokenExpiredException $exception){
      //返回特殊的code
      throw new HttpResponseException(response()->json([
        "message" => "token expired"
      ]));
    } catch (Exception $exception) {
      throw new AuthenticationException("Unauthorized", []);
    }
  }
}

注册:

<?php

namespace AppHttp;

use IlluminateFoundationHttpKernel as HttpKernel;

class Kernel extends HttpKernel
{
  ...
  protected $routeMiddleware = [
    "token.refresh" => AppHttpMiddlewareRefreshToken::class,
    "auth.basic" => IlluminateAuthMiddlewareAuthenticateWithBasicAuth::class,
    "bindings" => IlluminateRoutingMiddlewareSubstituteBindings::class,
    "can" => IlluminateAuthMiddlewareAuthorize::class,
    "guest" => AppHttpMiddlewareRedirectIfAuthenticated::class,
    "throttle" => IlluminateRoutingMiddlewareThrottleRequests::class,
  ];
}

相应的控制器构造函数修改:

public function __construct()
{
    $this->middleware("token.refresh", ["except" => ["login","refresh"]]);
}

把token时间设置成1分钟,测试一下。

可以根据api返回,去调用刷新接口。

简单使用就是这样啦。

总结

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原文链接:https://segmentfault.com/a/1190000037524366