• 二維碼長鏈
  • 解釋
  • 接口說明
  • 參數(shù)說明
    • query 參數(shù)
    • post 參數(shù)
    • 返回值說明
    • 正確情況下返回圖像的字節(jié)流，響應 header 中包含
    • 錯誤情況下返回
    • 返回信息
    • 錯誤碼
    • Bug&Tip
    • 請求示例

二維碼長鏈

解釋

獲取小程序二維碼長鏈接，適用于需要的碼數(shù)量較多的業(yè)務場景。通過該接口生成的二維碼，永久有效，無數(shù)量限制。

接口說明

 
 
 

  
  
  
POST https://openapi.baidu.com/rest/2.0/smartapp/qrcode/getunlimited?access_token=ACCESS_TOKEN
 
 
 

參數(shù)說明

query 參數(shù)

post 參數(shù)

返回值說明

 
 
 

  
  
  
如果調(diào)用成功，直接返回圖片二進制內(nèi)容，如果請求失敗，會返回 JSON 格式的數(shù)據(jù)。
 
 
 

正確情況下返回圖像的字節(jié)流，響應 header 中包含

 
 
 

  
  
  
HTTP/1.1 200 OK
  
  
  
  
  
  
Content-Type: image/png
 
 
 

錯誤情況下返回

 
 
 

  
  
  
HTTP/1.1 200 OK
  
  
  
  
  
  
Content-Type : application/json
 
 
 

返回信息

錯誤碼

Bug&Tip

• Tip：POST 只支持 form 表單提交。
• Tip：正確返回 Content-Type：image/png

請求示例

• PHP

 
 
 

  
  
  
  
  
  
class Common_Qrcode
  
  
  
{
  
  
  
 const URL_SEND_REG = 'https://openapi.baidu.com/rest/2.0/smartapp/qrcode/getunlimited?';
  
  
  
  
  
  
 /**
  
  
  
 * @desc 獲取 access_token
  
  
  
 * https://smartprogram.baidu.com/docs/develop/serverapi/power_exp/
  
  
  
 * @param $appkey
  
  
  
 * @param $appSecret
  
  
  
 * @return bool|string
  
  
  
 */
  
  
  
 public static function getAccessToken($appkey, $appSecret) {
  
  
  
 $url = 'https://openapi.baidu.com/oauth/2.0/token?';
  
  
  
 $courierConf = Bd_Conf::getAppConf("classes/courier");
  
  
  
 $param = array(
  
  
  
 "grant_type" => 'client_credentials',
  
  
  
 "client_id" => $appkey,
  
  
  
 "client_secret" => $appSecret,
  
  
  
 "scope" => 'smartapp_snsapi_base',
  
  
  
 );
  
  
  
 $url .= http_build_query($param);
  
  
  
 $curl = curl_init((string)$url);
  
  
  
 curl_setopt($curl, CURLOPT_HEADER, false);
  
  
  
 // 信任任何證書
  
  
  
 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); 
  
  
  
 curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
  
  
  
 $data = curl_exec($curl);
  
  
  
 curl_close($curl);
  
  
  
 $res = json_decode($data,1);
  
  
  
 if ($data === false || empty($res['access_token'])) {
  
  
  
 Bd_Log::warning("getToken fail! data[$data]");
  
  
  
 return false;
  
  
  
 }
  
  
  
 return $res['access_token'];
  
  
  
 }
  
  
  
  
  
  
 /**
  
  
  
 * @desc 獲取二維碼base64字節(jié)流
  
  
  
 * https://smartprogram.baidu.com/docs/develop/serverapi/get/
  
  
  
 * @param $path
  
  
  
 * @param $width
  
  
  
 * @return bool|string
  
  
  
 */
  
  
  
 public static function getQrCode($path, $width)
  
  
  
 {
  
  
  
 $accessToken = self::getAccessToken();
  
  
  
 if ($accessToken === false){
  
  
  
 return false;
  
  
  
 }
  
  
  
 $courierConf = Bd_Conf::getAppConf("classes/courier");
  
  
  
 $data = array(
  
  
  
 "path" => $path,
  
  
  
 "width" => $width,
  
  
  
 "expire" => $expire,
  
  
  
 );
  
  
  
  
  
  
 $res = self::curlPost($data,$accessToken);
  
  
  
  
  
  
 return $res;
  
  
  
 }
  
  
  
  
  
  
 /**
  
  
  
 * curl POST請求工具類
  
  
  
 * @param array $postDataArr 傳遞的數(shù)組參數(shù)
  
  
  
 * @return string | array
  
  
  
 */
  
  
  
 public static function curlPost($postDataArr,$accessToken)
  
  
  
 {
  
  
  
 $headerArr = array(
  
  
  
 "Content-type:application/x-www-form-urlencoded"
  
  
  
 );
  
  
  
 $url = self::URL_SEND_REG;
  
  
  
 $param = array(
  
  
  
 'access_token'=>$accessToken,
  
  
  
 );
  
  
  
 $url .= http_build_query($param);
  
  
  
 $curl = curl_init((string)$url);
  
  
  
 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  
  
  
 curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
  
  
  
 curl_setopt($curl, CURLOPT_POST, 1);
  
  
  
 curl_setopt($curl, CURLOPT_POSTFIELDS, $postDataArr);
  
  
  
 curl_setopt($curl, CURLOPT_HTTPHEADER, $headerArr);
  
  
  
 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  
  
  
 $output = curl_exec($curl);
  
  
  
 $info = curl_getinfo($curl);
  
  
  
 curl_close($curl);
  
  
  
  
  
  
 $res = '';
  
  
  
 if ($info["content_type"] == "image/png") {
  
  
  
 $res = base64_encode($output);
  
  
  
 }
  
  
  
 return $res;
  
  
  
  
  
  
 }
  
  
  
  
  
  
}