laravel小程序微信支付
1.漏油
//得到预支付交易单 Route::post('prepay_id', 'WeiXinXPayController@requestPayment'); //小程序支付回掉 Route::any('notify', 'APi\WeiXinXPayController@notifyPay');
2.控制器
<?PHP namespace App\Http\Controllers\APi; use App\Http\Model\Source\Order\Order; use App\Http\Model\Source\Order\Pay; use App\Http\Model\Source\Pay\WeiXinXPay; use Illuminate\Http\Request; class WeiXinXPayController extends BaseApiController { public $config; public function __construct() { $config = array( 'appid'=>'xxxxxx', 'pay_mchid'=>'xxxxxx', 'pay_apikey'=>'xxxxxx', 'notify_url'=>'xxxxxx', 'body'=>'xxxxxx' ); $this->config = $config; } /** * 预支付请求接口(POST) * $openid openid * $body 商品简单描述 * $order_sn 订单编号 * $total_fee 金额 * json的数据 */ public function requestPayment(Request $request) { $errors = new \stdClass(); $object = $this->JsonToArray($request); $res = Order::where(['order_id'=>trim($object['order_id']),'openid'=>trim($object['openid'])])->select('openid','price','pay_status','order_id')->first(); if( $res && $res->pay_status == 0 ) { $pay = new WeiXinXPay( $this->config ); $obj = new \stdClass(); $obj->openid = $res->openid; $obj->body = $this->config['body']; $obj->order_sn = $res->order_id; $obj->total_fee = $res->price; $result = $pay->prepay( $obj ); $result = json_decode($result); if( $result->status == 1 ) { $errors->status = 1; $errors->data = $result->data; return response()->json($errors, 200); }else { $errors->status = 0; $errors->result = '支付异常'; return response()->json($errors, 200); } }else { $errors->status = 0; $errors->result = '支付异常'; return response()->json($errors, 200); } } /** * 支付回调 * 返回数组去修改支付订单数据 */ public function notifyPay() { $notify = new WeiXinXPay( $this->config ); $data = $notify->notify(); if( $data ) { //修改数据库订单状态 } } }
3.类
<?PHP namespace App\Http\Model\Source\Pay; use Illuminate\Database\Eloquent\Model; class WeiXinXPay extends Model { public $config; public function __construct( $config ) { $this->config = $config; } /** * 预支付请求接口(POST) * 返回json的数据 */ public function prepay( $obj ) { $config = $this->config; $unifiedorder = array( 'appid' =>$config['appid'], 'mch_id' =>$config['pay_mchid'], 'nonce_str' =>self::getNoncestr(), 'body' =>$obj->body, 'out_Trade_no' =>$obj->order_sn, 'total_fee' =>$obj->total_fee * 100, 'spbill_create_ip'=>$_SERVER['REMOTE_ADDR'], 'notify_url' =>$config['notify_url'], 'Trade_type' =>'JSAPI', 'openid' =>$obj->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"); } $content = self::xml2array($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'])); } //拼接小程序的接口数据 $resData = array( 'appId' => strval($content['appid']), 'timeStamp' => time(), 'nonceStr' => self::getNoncestr(), 'package' => 'prepay_id='.strval($content['prepay_id']), 'signType' => 'MD5', ); //加密签名 $resData['paySign'] = self::makeSign($resData); exit(json_encode(array('status'=>1,'data'=>$resData))); } /** * @return array|bool * 微信支付回调验证 * 返回数据 */ public function notify() { //$xml = $GLOBALS['HTTP_RAW_POST_DATA']; $xml = file_get_contents('PHP://input'); //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 //更新数据库 }else { $result = false; } // 返回状态给微信服务器 if ( $result ) { $str='<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>'; }else { $str='<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[签名失败]]></return_msg></xml>'; } echo $str; return $result; } //---------------------------------------------------------------用到的函数------------------------------------------------------------ /** * 错误返回提示 * @param string $errMsg 错误信息 * @param string $status 错误码 * @return json的数据 */ protected function return_err($errMsg='error',$status=0) { exit(json_encode(array('status'=>$status,'result'=>'fail','errmsg'=>$errMsg))); } /** * 正确返回 * @param array $data 要返回的数组 * @return json的数据 */ protected function return_data($data=array()) { exit(json_encode(array('status'=>1,'result'=>'success','data'=>$data))); } /** * 将一个数组转换为 XML 结构的字符串 * @param array $arr 要转换的数组 * @param int $level 节点层级, 1 为 Root. * @return string XML 结构的字符串 */ protected function array2xml($arr, $level = 1) { $s = $level == 1 ? "<xml>" : ''; foreach($arr as $tagname => $value) { if (is_numeric($tagname)) { $tagname = $value['TagName']; unset($value['TagName']); } if(!is_array($value)) { $s .= "<{$tagname}>".(!is_numeric($value) ? '<![CDATA[' : '').$value.(!is_numeric($value) ? ']]>' : '')."</{$tagname}>"; }else { $s .= "<{$tagname}>" . $this->array2xml($value, $level + 1)."</{$tagname}>"; } } $s = preg_replace("/([\x01-\x08\x0b-\x0c\x0e-\x1f])+/", ' ', $s); return $level == 1 ? $s."</xml>" : $s; } /** * 将xml转为array * @param string $xml xml字符串 * @return array 转换得到的数组 */ protected function xml2array($xml) { //禁止引用外部xml实体 libxml_disable_entity_loader(true); $result= json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true); return $result; } /** * * 产生随机字符串,不长于32位 * @param int $length * @return 产生的随机字符串 */ protected function getNonceStr($length = 32) { $chars = "abcdefghijklmnopqrstuvwxyz0123456789"; $str =""; for ( $i = 0; $i < $length; $i++ ) { $str .= substr($chars, mt_rand(0, strlen($chars)-1), 1); } return $str; } /** * 生成签名 * @return 签名 */ protected function makeSign($data) { //获取微信支付秘钥 $key = $this->config['pay_apikey']; //去空 $data = array_filter($data); //签名步骤一:按字典序排序参数 ksort($data); $string_a = http_build_query($data); $string_a = urldecode($string_a); //签名步骤二:在string后加入KEY $string_sign_temp = $string_a."&key=".$key; //签名步骤三:MD5加密 $sign = md5($string_sign_temp); // 签名步骤四:所有字符转为大写 $result=strtoupper($sign); return $result; } /** * 微信支付发起请求 */ protected function curl_post_ssl($url, $xmldata, $second=30,$aHeader=array()) { $ch = curl_init(); //超时时间 curl_setopt($ch,CURLOPT_TIMEOUT,$second); curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1); //这里设置代理,如果有的话 //curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98'); //curl_setopt($ch,CURLOPT_PROXYPORT, 8080); curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false); if( count($aHeader) >= 1 ){ curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader); } curl_setopt($ch,CURLOPT_POST, 1); curl_setopt($ch,CURLOPT_POSTFIELDS,$xmldata); $data = curl_exec($ch); if($data){ curl_close($ch); return $data; } else { $error = curl_errno($ch); echo "call faild, errorCode:$error\n"; curl_close($ch); return false; } } }
4.小程序发起
/** * 请求支付数据 */ pay: function ( order_id ) { var that = this; var url = _data.get_api_prepay_id; //得到预支付交易单地址这个请求是自己写的你可以用官方的 var openid = wx.getStorageSync('openid'); var resdata = { 'openid': openid, 'order_id': order_id }; _httpHelper.httpPost(url, resdata, function (res) { if ( res.status == 1 ) { that.Payment(res.data); }else { wx.showToast({ title: '支付失败', icon: 'loading', duration: 20000 }); } }); },Payment: function (data) { wx.requestPayment({ 'timeStamp': String(data.timeStamp),'nonceStr': data.nonceStr,'package': data.package,'signType': data.signType,'paySign': data.paySign,'success': function (res) { wx.redirectTo({ url: '../user/my' }) },'fail': function (res) { wx.showToast({ title: '支付失败', duration: 20000 }); } }) } })
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