微信小程序获取access_token（附源码）

- 日理万妓 2022-02-18 08:59 642阅读 0赞

*  [服务端请求原因][Link 1]
 *  [官方文档][Link 2]

获取 access\_token 与获取 openid 方式一样具体如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MDQzOTIz_size_16_color_FFFFFF_t_70_pic_center]

###### 小程序实现 ######

*  本地不需要传递任何参数

wx.request({ 
    	var serverUrl = 'getAccessToken.php';
          url: serverUrl,
          method: 'GET',
          dataType: 'json',
          success: function (res) { 
            console.log('data : ', res.data)
          },
          fail: function (res) {  },
          complete: function (res) {  },
        })

![在这里插入图片描述][20190417102155755.png]

###### 服务端实现 ######

*  appid和秘钥自行定义,这里我随便定义的
 *  请求URL地址上篇文档已经有详细的介绍了, 一些参数不需要特别记忆知道就可以[URL详解][Link 1]

<?php
    /** * 请求接口返回内容 * @param string $url [请求的URL地址] * @param string $params [请求的参数] * @param int $ipost [是否采用POST形式] * @return string */
    
    class getAccessToken
    { 
        private $url;
        private $params;
    
        function __construct()
        { 
            $this->url = 'https://api.weixin.qq.com/cgi-bin/token';//请求url
            $paramsArray = array(
                'appid' => 'wxfddfkjs54g5r5d5sdsf',//你的appid
                'secret' => 'krj9er9df883kjd4j5k435jk34fddf',//你的秘钥
                'grant_type' => 'client_credential'//微信授权类型,官方文档定义为 ： client_credential
            );
            $this->params = http_build_query($paramsArray);//生成URL参数字符串
    
        }
    	
    	
        public function getTokenCurl($ispost = 0)
        { 
            $httpInfo = array();
            $ch = curl_init();
    
            curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
            curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36');
    
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            if ($ispost) { 
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_POSTFIELDS, $this->params);
                curl_setopt($ch, CURLOPT_URL, $this->url);
            } else { 
                if ($this->params) { 
                    curl_setopt($ch, CURLOPT_URL, $this->url . '?' . $this->params);
                } else { 
                    curl_setopt($ch, CURLOPT_URL, $this->url);
                }
            }
            $response = curl_exec($ch);
            if ($response === FALSE) { 
                return false;
            }
            $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            $httpInfo = array_merge($httpInfo, curl_getinfo($ch));
            curl_close($ch);
            return $response;
        }
    }
    //入口调用
    $getAccessToken = new getAccessToken();
    $res= $getAccessToken->getTokenCurl();
    echo $res;

[Link 1]: https://blog.csdn.net/qq_39043923/article/details/89336237
[Link 2]: https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/access-token/auth.getAccessToken.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MDQzOTIz_size_16_color_FFFFFF_t_70_pic_center]: /images/20220218/2a27cea6a7b04577a53ae3b7f4016724.png
[20190417102155755.png]: /images/20220218/d2b874f6dc764238be2a23e09b4d47ed.png