一，在controll重写add方法
/*** 添加*/
public function add()
{if ($this->request->isPost()) {$params = $this->request->post("row/a");if ($params) {$params = $this->preExcludeFields($params);if ($this->dataLimit && $this->dataLimitFieldAutoFill) {$params[$this->dataLimitField] = $this->auth->id;}$result = false;Db::startTrans();try {//是否采用模型验证if ($this->modelValidate) {$name = str_replace("\\model\\", "\\validate\\", get_class($this->model));$validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;$this->model->validateFailException(true)->validate($validate);}$result = $this->model->allowField(true)->save($params);Db::commit(); //添加方法 if($result){//通过save后获取自增的ID，传进获取二维码方法，生成跳转指定小程序页面的二维码，保存到数据表中$this->getEwm($this->model->getData('id'));}} catch (ValidateException $e) {Db::rollback();$this->error($e->getMessage());} catch (PDOException $e) {Db::rollback();$this->error($e->getMessage());} catch (Exception $e) {Db::rollback();$this->error($e->getMessage());}if ($result !== false) {$this->success();} else {$this->error(__('No rows were inserted'));}}$this->error(__('Parameter %s can not be empty', ''));}return $this->view->fetch();
}
2、自定义getEwm方法
public function getEwm($id){$access_token = $this->getWxAccessToken();
// p($access_token);die;//构建请求二维码参数//path是扫描二维码跳转的小程序路径，可以带参数?id=xxx//width是二维码宽度$qcode ="https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=".$access_token;$data = array();$data['scene'] = 'type=qrcode';$data['path'] = "pages/actDetails/actDetails?id=".$id;$data = json_encode($data);
// $data = json_encode(array("path"=>"pages/index/index?aOpenid=".$openid,"width"=> 150));$jpg = $this->get_http_array($qcode,$data);$imgDir = 'uploads/zshd/';
// $filename="ewm.jpg";///要生成的图片名字$filename = 'zshdact'.$id.'.jpg';$file = fopen("./".$imgDir.$filename,"w");//打开文件准备写入fwrite($file,$jpg);//写入fclose($file);//关闭$imgUrl = constant("URL").'/uploads/zshd/'.$filename;//更新二维码图片到活动表中ZshdActivityModel::where('id',$id)->update(['ewmImage'=>$imgUrl]);
// return json($imgUrl);}public function get_http_array($url,$post_data) {$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //没有这个会自动输出，不用print_r();也会在后面多个1curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);$output = curl_exec($ch);return $output;}/*** 获取小程序access_token*/public function getWxAccessToken(){$appId = constant('appidZshd');$appSecret = constant('secretZshd');$access_token = Cache::get('wx_access_token:'.$appId);if($access_token){return $access_token;}else{//1.请求url地址$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appId."&secret=".$appSecret;$res = $this->curl($url);if(isset($res['errcode']) && $res['errcode']!=0){return ('获取access_token出错');}$access_token = $res['access_token'];Cache::set('wx_access_token:'.$appId,$access_token,5400);return $access_token;}}public function curl($url,$data = null){
// p($data);die;$curl = curl_init();curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_TIMEOUT, 500);// 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。// 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);curl_setopt($curl, CURLOPT_URL, $url);if (!empty($data)){curl_setopt($curl, CURLOPT_POST, 1);
// curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));curl_setopt($curl, CURLOPT_POSTFIELDS, $data);}$res = curl_exec($curl);curl_close($curl);$json_obj = json_decode($res,true);
// p($json_obj);die;return $json_obj;}
