坑很多,踩了好几次,最后顺利实现,尤其需要注意的地方是:预下单后返回给app的sign需要二次加密。
具体传的参数可以参考支付平台的说明文档:https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_1#
参考了几篇文章,最后找到一个支付的类文件,内容如下:
<?php
class wechatAppPay
{
//接口API URL前缀
const API_URL_PREFIX = 'https://api.mch.weixin.qq.com';
//下单地址URL
const UNIFIEDORDER_URL = "/pay/unifiedorder";
//查询订单URL
const ORDERQUERY_URL = "/pay/orderquery";
//关闭订单URL
const CLOSEORDER_URL = "/pay/closeorder";
//公众账号ID
private $appid;
//商户号
private $mch_id;
//随机字符串
private $nonce_str;
//签名
private $sign;
//商品描述
private $body;
//商户订单号
private $out_trade_no;
//支付总金额
private $total_fee;
//终端IP
private $spbill_create_ip;
//支付结果回调通知地址
private $notify_url;
//交易类型
private $trade_type;
//支付密钥
private $key;
//证书路径
private $SSLCERT_PATH;
private $SSLKEY_PATH;
//所有参数
private $params = array();
public function __construct($appid, $mch_id, $notify_url, $key)
{
$this->appid = $appid;
$this->mch_id = $mch_id;
$this->notify_url = $notify_url;
$this->key = $key;
}
/**
* 下单方法
* @param $params 下单参数
*/
public function unifiedOrder( $params ){
$this->body = $params['body'];
$this->out_trade_no = $params['out_trade_no'];
$this->total_fee = $params['total_fee'];
$this->trade_type = $params['trade_type'];
$this->nonce_str = $this->genRandomString();
$this->spbill_create_ip = $_SERVER['REMOTE_ADDR'];
$this->params['appid'] = $this->appid;
$this->params['mch_id'] = $this->mch_id;
$this->params['nonce_str'] = $this->nonce_str;
$this->params['body'] = $this->body;
$this->params['out_trade_no'] = $this->out_trade_no;
$this->params['total_fee'] = $this->total_fee;
$this->params['spbill_create_ip'] = $this->spbill_create_ip;
$this->params['notify_url'] = $this->notify_url;
$this->params['trade_type'] = $this->trade_type;
//获取签名数据
$this->sign = $this->MakeSign( $this->params );
$this->params['sign'] = $this->sign;
$xml = $this->data_to_xml($this->params);
$response = $this->postXmlCurl($xml, self::API_URL_PREFIX.self::UNIFIEDORDER_URL);
if( !$response ){
return false;
}
$result = $this->xml_to_data( $response );
if( !empty($result['result_code']) && !empty($result['err_code']) ){
$result['err_msg'] = $this->error_code( $result['err_code'] );
}
return $result;
}
/**
* 查询订单信息
* @param $out_trade_no 订单号
* @return array
*/
public function orderQuery( $out_trade_no ){
$this->params['appid'] = $this->appid;
$this->params['mch_id'] = $this->mch_id;
$this->params['nonce_str'] = $this->genRandomString();
$this->params['out_trade_no'] = $out_trade_no;
//获取签名数据
$this->sign = $this->MakeSign( $this->params );
$this->params['sign'] = $this->sign;
$xml = $this->data_to_xml($this->params);
$response = $this->postXmlCurl($xml, self::API_URL_PREFIX.self::ORDERQUERY_URL);
if( !$response ){
return false;
}
$result = $this->xml_to_data( $response );
if( !empty($result['result_code']) && !empty($result['err_code']) ){
$result['err_msg'] = $this->error_code( $result['err_code'] );
}
return $result;
}
/**
* 关闭订单
* @param $out_trade_no 订单号
* @return array
*/
public function closeOrder( $out_trade_no ){
$this->params['appid'] = $this->appid;
$this->params['mch_id'] = $this->mch_id;
$this->params['nonce_str'] = $this->genRandomString();
$this->params['out_trade_no'] = $out_trade_no;
//获取签名数据
$this->sign = $this->MakeSign( $this->params );
$this->params['sign'] = $this->sign;
$xml = $this->data_to_xml($this->params);
$response = $this->postXmlCurl($xml, self::API_URL_PREFIX.self::CLOSEORDER_URL);
if( !$response ){
return false;
}
$result = $this->xml_to_data( $response );
return $result;
}
/**
*
* 获取支付结果通知数据
* return array
*/
public function getNotifyData(){
//获取通知的数据
$xml = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : file_get_contents("php://input");这个地方注意,因为php版本问题,这个地方不能用$GLOBALS['HTTP_RAW_POST_DATA'];不然会报错
$data = array();
if( empty($xml) ){
return false;
}
$data = $this->xml_to_data( $xml );
if( !empty($data['return_code']) ){
if( $data['return_code'] == 'FAIL' ){
return false;
}
}
return $data;
}
/**
* 接收通知成功后应答输出XML数据
* @param string $xml
*/
public function replyNotify(){
$data['return_code'] = 'SUCCESS';
$data['return_msg'] = 'OK';
$xml = $this->data_to_xml( $data );
echo $xml;
die();
}
/**
* 生成APP端支付参数
* @param $prepayid 预支付id
*/
public function getAppPayParams( $prepayid ){
$data['appid'] = $this->appid;
$data['partnerid'] = $this->mch_id;
$data['prepayid'] = $prepayid;
$data['package'] = 'Sign=WXPay';
$data['noncestr'] = $this->genRandomString();
$data['timestamp'] = time();
$data['sign'] = $this->MakeSign( $data );
return $data;
}
/**
* 生成签名
* @return 签名
*/
public function MakeSign( $params ){
//签名步骤一:按字典序排序数组参数
ksort($params);
$string = $this->ToUrlParams($params);
//签名步骤二:在string后加入KEY
$string = $string . "&key=".$this->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;
}
/**
* 将参数拼接为url: key=value&key=value
* @param $params
* @return string
*/
public function ToUrlParams( $params ){
$string = '';
if( !empty($params) ){
$array = array();
foreach( $params as $key => $value ){
$array[] = $key.'='.$value;
}
$string = implode("&",$array);
}
return $string;
}
/**
* 输出xml字符
* @param $params 参数名称
* return string 返回组装的xml
**/
public function data_to_xml( $params ){
if(!is_array($params)|| count($params) <= 0)
{
return false;
}
$xml = "<xml>";
foreach ($params as $key=>$val)
{
if (is_numeric($val)){
$xml.="<".$key.">".$val."</".$key.">";
}else{
$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
}
}
$xml.="</xml>";
return $xml;
}
/**
* 将xml转为array
* @param string $xml
* return array
*/
public function xml_to_data($xml){
if(!$xml){
return false;
}
//将XML转为array
//禁止引用外部xml实体
libxml_disable_entity_loader(true);
$data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $data;
}
/**
* 获取毫秒级别的时间戳
*/
private static function getMillisecond(){
//获取毫秒的时间戳
$time = explode ( " ", microtime () );
$time = $time[1] . ($time[0] * 1000);
$time2 = explode( ".", $time );
$time = $time2[0];
return $time;
}
/**
* 产生一个指定长度的随机字符串,并返回给用户
* @param type $len 产生字符串的长度
* @return string 随机字符串
*/
private function genRandomString($len = 32) {
$chars = array(
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
"l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
"w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
"H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
"S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2",
"3", "4", "5", "6", "7", "8", "9"
);
$charsLen = count($chars) - 1;
// 将数组打乱
shuffle($chars);
$output = "";
for ($i = 0; $i < $len; $i++) {
$output .= $chars[mt_rand(0, $charsLen)];
}
return $output;
}
/**
* 以post方式提交xml到对应的接口url
*
* @param string $xml 需要post的xml数据
* @param string $url url
* @param bool $useCert 是否需要证书,默认不需要
* @param int $second url执行超时时间,默认30s
* @throws WxPayException
*/
private function postXmlCurl($xml, $url, $useCert = false, $second = 30){
$ch = curl_init();
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, $second);
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,2);
//设置header
curl_setopt($ch, CURLOPT_HEADER, FALSE);
//要求结果为字符串且输出到屏幕上
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
if($useCert == true){
//设置证书
//使用证书:cert 与 key 分别属于两个.pem文件
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
//curl_setopt($ch,CURLOPT_SSLCERT, WxPayConfig::SSLCERT_PATH);
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
//curl_setopt($ch,CURLOPT_SSLKEY, WxPayConfig::SSLKEY_PATH);
}
//post提交方式
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
//运行curl
$data = curl_exec($ch);
//返回结果
if($data){
curl_close($ch);
return $data;
} else {
$error = curl_errno($ch);
curl_close($ch);
return false;
}
}
/**
* 错误代码
* @param $code 服务器输出的错误代码
* return string
*/
public function error_code( $code ){
$errList = array(
'NOAUTH' => '商户未开通此接口权限',
'NOTENOUGH' => '用户帐号余额不足',
'ORDERNOTEXIST' => '订单号不存在',
'ORDERPAID' => '商户订单已支付,无需重复操作',
'ORDERCLOSED' => '当前订单已关闭,无法支付',
'SYSTEMERROR' => '系统错误!系统超时',
'APPID_NOT_EXIST' => '参数中缺少APPID',
'MCHID_NOT_EXIST' => '参数中缺少MCHID',
'APPID_MCHID_NOT_MATCH' => 'appid和mch_id不匹配',
'LACK_PARAMS' => '缺少必要的请求参数',
'OUT_TRADE_NO_USED' => '同一笔交易不能多次提交',
'SIGNERROR' => '参数签名结果不正确',
'XML_FORMAT_ERROR' => 'XML格式错误',
'REQUIRE_POST_METHOD' => '未使用post传递参数 ',
'POST_DATA_EMPTY' => 'post数据不能为空',
'NOT_UTF8' => '未使用指定编码格式',
);
if( array_key_exists( $code , $errList ) ){
return $errList[$code];
}
}
}
基本上看懂这个类就完成了90%的事情了。
第一步统一下单:
//1.统一下单方法
public function payTempOrder(){
$wechatAppPay = new wechatAppPay($this->appid, $this->mch_id, $this->notify_url, $this->key);
$params['body'] = $body; //商品描述
$params['out_trade_no'] = $out_trade_no; //自定义的订单号
$params['total_fee'] = $total_fee; //订单金额 只能为整数 单位为分
$params['trade_type'] = $trade_type; //交易类型 JSAPI | NATIVE | APP | WAP
$result = $wechatAppPay->unifiedOrder( $params );
if($result === false){
$this->echoJson(-1,"下单失败,请稍后再试");
}
/*
*return_code 此字段是通信标识,非交易标识,交易是否成功需要查看result_code来判断
*return_msg 返回信息,如非空,为错误原因 签名失败 参数格式校验错误
*/
if($result['return_msg'] =='OK' && $result['return_code'] == 'SUCCESS'){
if($result['result_code'] == 'SUCCESS'){
$object['unified_result'] = 1;
//这里做一下数据上的处理
if($unifiedorderResult){//这里是处理数据成功后,去取要返回给app端的信息
$returnData = $wechatAppPay->getAppPayParams($result['prepay_id']);
$returnData['out_trade_no'] = $out_trade_no;//带上自己服务器上生存的订单号(必须唯一)
$this->echoJson(0,$returnData);
}
}else{
$this->echoJson(-1,$result['err_code_des']);
}
}else{
$this->echoJson(-1,$result['return_msg']);
}
}
第二步接收支付结果
public function notify(){
$wechatAppPay = new wechatAppPay($this->appid, $this->mch_id, $this->notify_url, $this->key);
$result = $wechatAppPay->getNotifyData();
if($result === false){//不管成功与否,都要给微信服务端返回成功的信息,不然它那边会循环调这个接口
$wechatAppPay->replyNotify();
}
//付款成功才更新付款详细内容
if($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS'){
$object['result'] = 1;
$object['bank_type'] = $result['bank_type'];
$object['cash_fee'] = $result['cash_fee'];
$object['fee_type'] = $result['fee_type'];
$object['transaction_id']= $result['transaction_id'];
$object['time_end'] = $result['time_end'];
$object['openid'] = $result['openid'];
$out_trade_no = $result['out_trade_no'];
$rechargeResult = $this->update(table, $object, "`out_trade_no`='{$out_trade_no}'");//这里是处理支付结果的数据,把有用的信息保存到数据表里
if($rechargeResult){
$wechatAppPay->replyNotify();
}
}else{
$wechatAppPay->replyNotify();
}
}
第三步,app端验证支付是否成功
public function checkOrder(){
$param = json_decode(file_get_contents('php://input'),true);
$out_trade_no = $param['out_trade_no'];
$wechatAppPay = new wechatAppPay($this->appid, $this->mch_id, $this->notify_url, $this->key);
$result = $wechatAppPay->orderQuery( $out_trade_no );
if($result === false){
$this->echoJson(-1,"订单号不存在,请核对后再查");
}
$data = array();
if($result['return_msg'] == 'OK' && $result['return_code'] == 'SUCCESS'){
if($result['result_code'] == 'SUCCESS'){
$data['trade_state'] = $result['trade_state'];
//在这处理数据
}else{
$data['err_code_des'] = $result['err_code_des'];
$this->echoJson(-1,$data);
}
}else{
$data['return_msg'] = $result['return_msg'];
$this->echoJson(-1,$data);
}
支付流程就这样,到此结束。
vue2 Implicit conversion from float int loses precision php8Implicit Mysql8新增用户,mysql8配置权限,mysql8配置,mysql8配置文件 Linux命令,scp,scp命令,Linux复制 git commit git add centos git 搭建FTP,Linux FTP,禁止FTP登录ssh 上传文件,阿里云OSS上传,文件上传到OSS,OSS文件上传,OSS上传 微信支付,微信支付V3,PHP微信支付,微信nativePay支付,微信jsapi支付 微信支付,微信支付V3,PHP微信支付 bootstrap4 modal, lavarel The subversion command line tools are no longer provided by Xcode. 银联支付,tp5.1银联支付 支付宝即时到账,PHP支付宝 system libzip must be upgraded to version >= 0.11 CMake 3.0.2 or higher is required