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='
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='
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."";
}else{
$xml.="<".$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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