Comment implémenter le paiement WeChat dans un mini-programme

/** * 预支付请求接口(POST) * @param string $openid openid * @param string $body 商品简单描述 * @param string $order_sn 订单编号 * @param string $total_fee 金额 * @return json的数据 */ public function prepay(){ $config = $this->config; $openid = I('post.openid'); $body = I('post.body'); $order_sn = I('post.order_sn'); $total_fee = I('post.total_fee'); //统一下单参数构造 $unifiedorder = array( 'appid' => $config['appid'], 'mch_id' => $config['pay_mchid'], 'nonce_str' => self::getNonceStr(), 'body' => $body, 'out_trade_no' => $order_sn, 'total_fee' => $total_fee * 100, 'spbill_create_ip' => get_client_ip(), 'notify_url' => 'https://'.$_SERVER['HTTP_HOST'].'/Api/Wxpay/notify', 'trade_type' => 'JSAPI', 'openid' => $openid ); $unifiedorder['sign'] = self::makeSign($unifiedorder); //请求数据 $xmldata = self::array2xml($unifiedorder); $url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; $res = self::curl_post_ssl($url, $xmldata); if(!$res){ self::return_err("Can't connect the server"); } // 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了 //file_put_contents(APP_ROOT.'/Statics/log1.txt',$res,FILE_APPEND); $content = self::xml2array($res); if(strval($content['result_code']) == 'FAIL'){ self::return_err(strval($content['err_code_des'])); } if(strval($content['return_code']) == 'FAIL'){ self::return_err(strval($content['return_msg'])); } self::return_data(array('data'=>$content)); //$this->ajaxReturn($content); }

/** * 进行支付接口(POST) * @param string $prepay_id 预支付ID(调用prepay()方法之后的返回数据中获取) * @return json的数据 */ public function pay(){ $config = $this->config; $prepay_id = I('post.prepay_id'); $data = array( 'appId' => $config['appid'], 'timeStamp' => time(), 'nonceStr' => self::getNonceStr(), 'package' => 'prepay_id='.$prepay_id, 'signType' => 'MD5' ); $data['paySign'] = self::makeSign($data); $this->ajaxReturn($data); }

wx.requestPayment({ 'timeStamp': '', 'nonceStr': '', 'package': '', 'signType': 'MD5', 'paySign': '', 'success':function(res){ }, 'fail':function(res){ } })

//微信支付回调验证 public function notify(){ $xml = $GLOBALS['HTTP_RAW_POST_DATA']; // 这句file_put_contents是用来查看服务器返回的XML数据 测试完可以删除了 //file_put_contents(APP_ROOT.'/Statics/log2.txt',$res,FILE_APPEND); //将服务器返回的XML数据转化为数组 $data = self::xml2array($xml); // 保存微信服务器返回的签名sign $data_sign = $data['sign']; // sign不参与签名算法 unset($data['sign']); $sign = self::makeSign($data); // 判断签名是否正确 判断支付状态 if ( ($sign===$data_sign) && ($data['return_code']=='SUCCESS') && ($data['result_code']=='SUCCESS') ) { $result = $data; //获取服务器返回的数据 $order_sn = $data['out_trade_no']; //订单单号 $openid = $data['openid']; //付款人openID $total_fee = $data['total_fee']; //付款金额 $transaction_id = $data['transaction_id']; //微信支付流水号 //更新数据库 $this->updateDB($order_sn,$openid,$total_fee,$transaction_id); }else{ $result = false; } // 返回状态给微信服务器 if ($result) { $str=''; }else{ $str=''; } echo $str; return $result; }

/** * 支付函数 * @param {[type]} _payInfo [description] * @return {[type]} [description] */ pay:function(_payInfo,success,fail){ var payInfo = { body:'', total_fee:0, order_sn:'' } Object.assign(payInfo, _payInfo); if(payInfo.body.length==0){ wx.showToast({ title:'支付信息描述错误' }) return false; } if(payInfo.total_fee==0){ wx.showToast({ title:'支付金额不能0' }) return false; } if(payInfo.order_sn.length==0){ wx.showToast({ title:'订单号不能为空' }) return false; } var This = this; This.getOpenid(function(openid){ payInfo.openid=openid; This.request({ url:'api/pay/prepay', data:payInfo, success:function(res){ var data = res.data; console.log(data); if(!data.status){ wx.showToast({ title:data['errmsg'] }) return false; } This.request({ url:'api/pay/pay', data:{prepay_id:data.data.data.prepay_id}, success:function(_payResult){ var payResult = _payResult.data; console.log(payResult); wx.requestPayment({ 'timeStamp': payResult.timeStamp.toString(), 'nonceStr': payResult.nonceStr, 'package': payResult.package, 'signType': payResult.signType, 'paySign': payResult.paySign, 'success': function (succ) { success&&success(succ); }, 'fail': function (err) { fail&&fail(err); }, 'complete': function (comp) { } }) } }) } }) }) }