前言
目前项目中有这样一下需求，通过传入的不同的参数生成不同渠道的微信小程序二维码，从而统计各大平台从小程序引流的数据。而旧系统是先通过接口生成二维码后先是保存至当前服务器上后，拿到图片路径和文件信息然后再使用OSS的SDK上传到存储桶。可能是因为生成的二维码是文件流，所以以前的人是通过file_put_contents函数做的保存再使用SDK的文件上传接口。
思路
为了去掉保存至服务器这一步，所以就不能使用文件上传。而目前大平台的存储服务一般都不止提供一种方式的上传，所以找到了文档发现了一个“字符串上传”。也就是当调用微信接口返回的二维码文件流(一堆字符串)，然后通过该SDK配置路径和文件就可以实现小程序码的上传了。
流程
1. 下载OSS的SDK，可以去其官网也可以composer require aliyuncs/oss-sdk-php
2. 配置参数封装其字符串上传方法等
3. 封装二维码生成方法
4. 实现上传后执行业务操作
编码
1. 文件流上传部分
/*
*@title 单文件流上传
*@param string $content 文件流字符串
*@param string $file_name 存储位置/文件名(包括文件后缀)
*@return object
*/public function objectUpload($content, $file_name=''){ $config = $this->config; $res['code'] = 1; $res['message'] = ''; try{ $ossClient = new OssClient($config['AccessKeyID'], $config['AccessKeySecret'], $config['EndPoint']); $result = $ossClient->putObject($config['Bucket'], $file_name, $content); $res['data']['url'] = $result['info']['url']; $res['data']['path'] = explode("/",$file_name)[1];
} catch(OssException $e) { $res['code'] = 0; $res['message'] = $e->getMessage();
} return $res;
}
2. 公用文件流上传函数部分
error_reporting(E_ALL ^ E_NOTICE);if (!function_exists('oss_object_upload')) { function oss_object_upload($content,$file_name) { $oss = oss\OssFactory::factory("AliOss"); $result = $oss->objectUpload($content,$file_name); return $result;
}
}
3. 二维码生成部分
<?php
namespace app\common\library;
use Firebase\JWT\JWT as FirebaseJWT;
use oss\OssFactory;
use think\Db;
use think\Session;
use think\Request;
use think\Loader;
use think\facade\Config;
use GuzzleHttp\Client;
class Wechat{
protected static $instance = null;
protected $_error = "";
protected $_errorMsg = "";
protected $config;
public function __construct($type){
$this->config = Config::pull($type); // 获取配置参数
}
/*
* @title 获取对象
* @author beiqiaosu
* @param string $type (mini:小程序配置)
* @return null| object
* */
public static function getInstance($type='mini')
{
if (!self::$instance) {
self::$instance = new self($type);
}
return self::$instance;
}
// 请求微信接口凭证access_token
public function getAccessToken()
{
$res = false;
if(!$this->config) {
$this->_error = '请求配置不存在';
$this->_errorMsg = '接口错误';
}
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->config['appId']}&secret={$this->config['appSecret']}";
$client = new Client();
$response = $client->request('GET', $url, ['verify' => false]);
$res = $response->getBody()->getContents();
$result = json_decode(stripcslashes($res), true);
if (!isset($result['errcode']) || $result['errcode'] == 0) {
// 获取成功
$res = $result['access_token'];
} else {
$this->_error = $result['errmsg'];
$this->_errorMsg = '接口错误';
}
return $res;
}
// 生成小程序自定义二维码
public function getQrcode($scene)
{
$res = false;
if(empty($scene)) {
$this->_error = 'scene参数不存在';
$this->_errorMsg = '接口出错';
}
$accrssToken = $this->getAccessToken();
// if(!$accrssToken) return $res;
$data = array(
"scene" => "{$scene}"
);
$url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token={$accrssToken}";
// $client = new Client(array(
// 'content-type' => 'application/json'
// ));
// $paramArr = json_encode($data);
// $response = $client->post($url, [
// \GuzzleHttp\RequestOptions::JSON => $data
// ]);
// $response = $client->request('POST', $url, ['json'=>$paramArr]);
// $res = $response->getBody()->getContents();
// $result = json_decode(stripcslashes($res), true);
$returnData = self::httpsRequest($url, $data, 'json');
if (!isset($returnData['errcode']) || $returnData['errcode'] == 0) {
$res = $returnData;
}else {
$this->_error = $returnData['errmsg'];
$this->_errorMsg = '接口出错';
}
return $res;
}
// cURL POST请求方法(暂放)
public static function httpsRequest($url, $data, $type)
{
if ($type == 'json') {
$headers = array("Content-type: application/json;charset=UTF-8", "Accept: application/json", "Cache-Control: no-cache", "Pragma: no-cache");
$data = json_encode($data);
}
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data)) {
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
public function getError()
{
return $this->_error;
}
public function getErrorMsg()
{
return $this->_errorMsg;
}
final protected function __clone()
{
}
public function __call($name, $arguments)
{
// TODO: Implement __call() method.
}
}
4. 开始上传的业务实现部分。
// 获取二维码文件流$ret = \app\common\library\Wechat::getInstance()->getQrcode("activty".$activtyId);if(!$ret) { $res['code'] = 400; $res['msg'] = \app\common\library\Wechat::getInstance()->getError(); return $res;
}$path = "qrcode/"; // 二维码文件流存放位置$fileName = time() . rand(1000,9999) . ".png";$result = oss_object_upload($ret,$path.$fileName);// 文件流上传失败if(!$result['code']) { $res['code'] = 400; $res['msg'] = $result['message']; return $res;
}// 将二维码图片放入到引流配置中$data = [ "id" => $activtyId, "img" => $result['data']['url']
];$upRes = Db::name("activity")->update($data);
说明
以上代码是部分，所以需要自己根据业务整理修改合理的采取