基于thinkphp5框架实现微信小程序支付 退款 订单查询 退款查询操作
微信小程序或微信支付相关操作支付退款订单查询退款查询支付成功,进行回调退款成功进行回调用到的方法
支付
/** *预支付请求接口(POST) *@paramstring$openidopenid *@paramstring$body商品简单描述 *@paramstring$order_sn订单编号 *@paramstring$total_fee金额 *@returnjson的数据 */ publicfunctionprepay() { tp_log('预支付请求数据===>'.json_encode($_POST),'prepay',request()->controller()); $goods_user=db('tf_goods_user')->where(array('order_no'=>$_POST['order_no']))->find(); $goods=db('tf_goods')->where(array('id'=>$goods_user['goods_id']))->find(); //判断产品的数量 if(($goods['sales_initial']-$goods['sales_actual'])<=0){ $return['status']=0; $return['info']='此产品已售完'; exit(json_encode($return)); } $order_no=$_POST['order_no'];//订单号 $is_sale=$_POST['is_sale']; $openid=$_POST['openid']; $goods_name=$_POST['goods_name']; $pay_price=$_POST['price']; $attach['is_sale']=$_POST['is_sale']; $attach['sale_id']=$_POST['sale_id']; $nonce_str=$this->nonce_str();//随机字符串 $order_no_ssh=$this->get_orderssh();//商户订单号 //组装支付数据 $data=[ 'appid'=>config('pay.APPID'), 'mch_id'=>config('pay.MCHID'), 'nonce_str'=>$nonce_str, 'body'=>$goods_name,//商品名称组合 'attach'=>json_encode($attach), 'out_trade_no'=>$order_no_ssh,//$order_no,//订单号商户订单号 'total_fee'=>intval($pay_price*100), 'spbill_create_ip'=>$_SERVER['REMOTE_ADDR'], 'notify_url'=>config('pay.NOTIFY_URL'), 'trade_type'=>'JSAPI', 'openid'=>$openid ]; //订单支付表创建订单支付数据 $p_o_data['createtime']=time(); $p_o_data['order_no']=$order_no; $p_o_data['order_no_ssh']=$order_no_ssh; $p_o_data['ready']=json_encode($data); $p_o_return=db('tf_pay_order')->insert($p_o_data); if(!$p_o_return){ //失败 $return['status']=-1; $return['info']=$p_o_data; exit(json_encode($return)); } //获取签名 $sign=$this->makeSign($data); $data['sign']=$sign; $xml=$this->toXml($data); $url='https://api.mch.weixin.qq.com/pay/unifiedorder';//发起支付接口链接 //发起预支付请求 $prepay_return_reslut_xml=$this->http_request($url,$xml); $xml_to_arr=$this->fromXml($prepay_return_reslut_xml); $return_result=json_encode($xml_to_arr,true); tp_log('预支付请求返回数据array===>'.$return_result,'prepay',request()->controller()); //记录预支付返回信息 db('tf_goods_order')->where(array('order_no'=>$order_no)) ->update(array( 'go_pay'=>$return_result, 'updatetime'=>time(), 'updateuser'=>$openid )); if($xml_to_arr['return_code']=='SUCCESS'&&$xml_to_arr['result_code']=='SUCCESS'){ //成功 $time=time(); //临时数组用于签名 $tmp=[ 'appId'=>config('pay.APPID'), 'nonceStr'=>$nonce_str, 'package'=>'prepay_id='.$xml_to_arr['prepay_id'], 'signType'=>'MD5', 'timeStamp'=>"$time", ]; $data['timeStamp']="$time";//时间戳 $data['nonceStr']=$nonce_str;//随机字符串 $data['signType']='MD5';//签名算法,暂支持MD5 $data['package']='prepay_id='.$xml_to_arr['prepay_id'];//统一下单接口返回的prepay_id参数值,提交格式如:prepay_id=* $data['paySign']=$this->makeSign($tmp);//签名,具体签名方案参见微信公众号支付帮助文档;$data['out_trade_no']=$out_trade_no; $return['status']=1; $return['info']=$data; }else{ //失败 $return['status']=-1; $return['info']=$xml_to_arr; } exit(json_encode($return)); } //curl请求 publicfunctionhttp_request($url,$data=null,$headers=array()) { $curl=curl_init(); if(count($headers)>=1){ curl_setopt($curl,CURLOPT_HTTPHEADER,$headers); } 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); $output=curl_exec($curl); curl_close($curl); return$output; }
退款
/** *申请退款API *@param$transaction_id *@paramdouble$total_fee账单总金额 *@paramdouble$refund_fee退款金额 *@returnbool *@throwsBaseException */ publicfunctionrefund() { $transaction_id='4200000712202007274705432240'; $total_fee='0.01'; $refund_fee='0.01'; //当前时间 $time=time(); //生成随机字符串 $nonceStr=md5($time.$transaction_id.$total_fee.$refund_fee); //API参数 $params=[ 'appid'=>config('pay.APPID'), 'mch_id'=>config('pay.MCHID'), 'nonce_str'=>$nonceStr, 'transaction_id'=>$transaction_id, 'out_refund_no'=>$time, 'total_fee'=>$total_fee*100, 'refund_fee'=>$refund_fee*100, 'notify_url'=>config('pay.NOTIFY_URL_REFUND'),//退款回调地址 ]; //生成签名 $params['sign']=$this->makeSign($params); tp_log('退款请求数据===>'.json_encode($params),'refund',request()->controller()); //请求API $url='https://api.mch.weixin.qq.com/secapi/pay/refund'; $result=$this->post($url,$this->toXml($params),true,$this->getCertPem()); $prepay=$this->fromXml($result); //请求失败 if(empty($result)){ thrownewBaseException(['msg'=>'微信退款api请求失败']); } //格式化返回结果 $prepay=$this->fromXml($result); tp_log('退款返回数据===>'.json_encode($prepay),'refund',request()->controller()); //请求失败 //if($prepay['return_code']==='FAIL'){ //thrownewBaseException(['msg'=>'return_msg:'.$prepay['return_msg']]); //} //if($prepay['result_code']==='FAIL'){ //thrownewBaseException(['msg'=>'err_code_des:'.$prepay['err_code_des']]); //} returntrue; } /** *模拟POST请求 *@param$url *@paramarray$data *@parambool$useCert *@paramarray$sslCert *@returnmixed */ publicfunctionpost($url,$data=[],$useCert=false,$sslCert=[]) { $header=[ 'Content-type:application/json;' ]; $curl=curl_init(); //如果有配置代理这里就设置代理 //if(WxPayConfig::CURL_PROXY_HOST!="0.0.0.0" //&&WxPayConfig::CURL_PROXY_PORT!=0){ //curl_setopt($ch,CURLOPT_PROXY,WxPayConfig::CURL_PROXY_HOST); //curl_setopt($ch,CURLOPT_PROXYPORT,WxPayConfig::CURL_PROXY_PORT); //} curl_setopt($curl,CURLOPT_URL,$url); curl_setopt($curl,CURLOPT_HTTPHEADER,$header); curl_setopt($curl,CURLOPT_HEADER,false); curl_setopt($curl,CURLOPT_RETURNTRANSFER,1); curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($curl,CURLOPT_POST,TRUE); curl_setopt($curl,CURLOPT_POSTFIELDS,$data); if($useCert==true){ //设置证书:cert与key分别属于两个.pem文件 curl_setopt($curl,CURLOPT_SSLCERTTYPE,'PEM'); curl_setopt($curl,CURLOPT_SSLCERT,$sslCert['certPem']); curl_setopt($curl,CURLOPT_SSLKEYTYPE,'PEM'); curl_setopt($curl,CURLOPT_SSLKEY,$sslCert['keyPem']); } $result=curl_exec($curl); curl_close($curl); return$result; }
订单查询
/** *订单查询 *@param$out_trade_no *@returnmixed *@throwsBaseException */ publicfunctionorderquery() { $transaction_id='4200000712202007274705432240';//微信订单号 //当前时间 $time=time(); //生成随机字符串 $nonce_str=md5($time.mt_rand(00000,99999)); //API参数 $params=[ 'appid'=>config('pay.APPID'),//公众号ID 'mch_id'=>config('pay.MCHID'),//商户号 'transaction_id'=>$transaction_id,//商户订单号 'nonce_str'=>$nonce_str,//随机字符串 ]; //生成签名 $params['sign']=$this->makeSign($params); //请求API $url='https://api.mch.weixin.qq.com/pay/orderquery'; $result=$this->post($url,$this->toXml($params)); $prepay=$this->fromXml($result); //请求失败 if($prepay['return_code']==='FAIL'){ thrownewBaseException(['msg'=>$prepay['return_msg'],'code'=>0]); } if($prepay['result_code']==='FAIL'){ thrownewBaseException(['msg'=>$prepay['err_code_des'],'code'=>0]); } return$prepay; }
退款查询
/** *退款查询 *@param$out_trade_no *@returnmixed *@throwsBaseException */ publicfunctionrefundquery() { $transaction_id='4200000712202007274705432240';//微信订单号 //当前时间 $time=time(); //生成随机字符串 $nonce_str=md5($time.mt_rand(00000,99999)); //API参数 $params=[ 'appid'=>config('pay.APPID'),//公众号ID 'mch_id'=>config('pay.MCHID'),//商户号 'transaction_id'=>$transaction_id,//商户订单号 'nonce_str'=>$nonce_str,//随机字符串 ]; //生成签名 $params['sign']=$this->makeSign($params); //请求API $url='https://api.mch.weixin.qq.com/pay/refundquery'; $result=$this->post($url,$this->toXml($params)); $prepay=$this->fromXml($result); dump($prepay);die; //请求失败 if($prepay['return_code']==='FAIL'){ thrownewBaseException(['msg'=>$prepay['return_msg'],'code'=>0]); } if($prepay['result_code']==='FAIL'){ thrownewBaseException(['msg'=>$prepay['err_code_des'],'code'=>0]); } return$prepay; }
支付成功,进行回调
publicfunctionindex() { $data=file_get_contents('php://input'); $data=$this->FromXml($data); tp_log('支付回调数据===>'.json_encode($data),'index',request()->controller()); //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']); $sign=$this->makeSign($data);//回调验证签名 $str_success=''; $str_error=' '; if(($sign===$data_sign)&&($data['return_code']=='SUCCESS')&&($data['result_code']=='SUCCESS')){ //支付成功进行你的逻辑处理 } echo$str_success;//str_error告知微信你已的逻辑处理完毕不用再推送或再次推送你结果 }
退款成功进行回调
/* *小程序退款结果通知 */ publicfunctionrefund(){ $data=file_get_contents('php://input'); $data=$this->FromXml($data); tp_log('退款回调数据===>'.json_encode($data),'refund',request()->controller()); //对加密的字符串解密 $req_info_xml=openssl_decrypt(base64_decode($data['req_info']),'aes-256-ecb',md5(config('pay.KEY')),OPENSSL_RAW_DATA); $req_info=$this->FromXml($req_info_xml); ////保存微信服务器返回的签名sign //$data_sign=$data['sign']; ////sign不参与签名算法 //unset($data['sign']); //$sign=$this->makeSign($data);//回调验证签名 // //$str_success=''; //$str_error=' '; // // // //if(($sign===$data_sign)&&($data['return_code']=='SUCCESS')&&($data['result_code']=='SUCCESS')){ //tp_log('退款成功===>','refund',request()->controller()); ////去修改订单的状态和支付回调的一样修改成功告知微信不在推送 //} }
用到的方法
/** *生成签名 *@param$values *@returnstring本函数不覆盖sign成员变量,如要设置签名需要调用SetSign方法赋值 */ privatefunctionmakeSign($values) { //签名步骤一:按字典序排序参数 ksort($values); $string=$this->toUrlParams($values); //签名步骤二:在string后加入KEY $string=$string.'&key='.config('pay.KEY'); //签名步骤三:MD5加密 $string=md5($string); //签名步骤四:所有字符转为大写 $result=strtoupper($string); return$result; } privatefunctionToUrlParams($array) { $buff=""; foreach($arrayas$k=>$v){ if($k!="sign"&&$v!=""&&!is_array($v)){ $buff.=$k."=".$v."&"; } } $buff=trim($buff,"&"); return$buff; } /** *输出xml字符 *@param$values *@returnbool|string */ privatefunctiontoXml($values) { if(!is_array($values) ||count($values)<=0 ){ returnfalse; } $xml=""; foreach($valuesas$key=>$val){ if(is_numeric($val)){ $xml.="<".$key.">".$val."".$key.">"; }else{ $xml.="<".$key.">".$key.">"; } } $xml.=" "; return$xml; } /** *将xml转为array *@param$xml *@returnmixed */ privatefunctionfromXml($xml) { //禁止引用外部xml实体 libxml_disable_entity_loader(true); returnjson_decode(json_encode(simplexml_load_string($xml,'SimpleXMLElement',LIBXML_NOCDATA)),true); } /** *获取cert证书文件 *@returnarray *@throwsBaseException */ privatefunctiongetCertPem() { //if(empty($this->config['cert_pem'])||empty($this->config['key_pem'])){ //thrownewBaseException(['msg'=>'请先到后台小程序设置填写微信支付证书文件']); //} //cert目录 $filePath=EXTEND_PATH.'wxpay/cert/'; return[ 'certPem'=>$filePath.'apiclient_cert.pem', 'keyPem'=>$filePath.'apiclient_key.pem' ]; } /** *生成商户订单号 */ publicfunctionget_orderssh() { returndate("YmdHis").mt_rand(10000000,99999999); }
证书路径
config配置
总结
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