小程序实现Token生成与验证
目录
- 流程
- 演示
- 小程序端
- 后端接口
流程
每次请求接口携带token,进行验证
1.验证成功则返回接口数据
2.验证失败(token过期),小程序重新请求生成新的token,然后请求之前的接口
key值: 随机数+时间戳+盐
value值: id+session_key+openid
演示
小程序端
<view> <button bindtap="loadToeknData">携带token请求数据</button> </view>
Page({ data: { }, onLoad:function(){ // this._loadData(); }, //生成token setToken:function(callback){ // wx.setStorageSync('token', "sfspx64w8x47w14x3zX4x4wf4") var that = this; wx.request({ url: 'http://2021xcx-api.com/api/gettoken', method: 'POST', success: function(res){ console.log(res.data); var data = res.data; if(data.code==1){ //更新新获取的token值 wx.setStorageSync('token', data.token); // 执行回调函数 callback&&callback() }else{ that.setToken(); } } }) }, loadToeknData:function(){ var that = this; wx.request({ url: 'http://2021xcx-api.com/api/orders', method: 'POST', header: { 'content-type': 'application/json', 'token': wx.getStorageSync('token') }, success: function(res){ var data = res.data; console.log(data) if(data.code==903){ // token过期,重新请求设置 // 携带回调函数,token重新获取后继续执行此方法。 that.setToken(that.loadToeknData) } } }) }, })
后端接口
路由配置
<?php Route::post("api/orders", "api/index/getOrders"); // Token Route::post("api/gettoken", "api/token/createToken");
Index.php
<?php namespace app\api\controller; use app\api\controller\Token; use think\Cache; class Index extends Token { public function getOrders(Token $token){ $token->verifyToken(); $data['orders'] = [ 'id' => 1, 'title' => 'apple', 'time' => time() ]; echo json_encode($data); } }
Token.php
<?php namespace app\api\controller; use think\Controller; class Token extends Controller { protected $returnParam = [ 'code' => 1, 'msg' => '请求失败' ]; /** * [verifyToken 验证Token是否携带并存在] * @return [type] [description] */ public function verifyToken(){ $token = request()->header()['token']; $isSetToken = cache($token); // dump($isSetToken);die; if(!$isSetToken){ $this->returnParam['code'] = 903; $this->returnParam['msg'] = "Token验证失败"; echo json_encode( $this->returnParam );die; } } /** * [createToken Token生成] * tip:token中记录用户ID/session_kye/openid * @return [type] [description] */ public function createToken() { $randStr = rand(1,9999); $time = time(); $sale = "xixi2021"; // * 此处模拟--未请求微信接口进行sessionkey及openid的获取 $tokenValue = [ 'uid' => 1, 'session_key' => '84848aasa', 'openid' => '20oxl65wc4d4s5x7hwc', 'code' => 'sssaaeee' ]; $tokenKey = md5($randStr.$time.$sale); //缓存存储token数据 cache($tokenKey, json_encode($tokenValue), 1); $returnParam = [ 'code' => 1, 'token' => $tokenKey ]; echo json_encode($returnParam); } }
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