前端js请求参数调起支付
<script type="text/javascript" src="https://res2.wx.qq.com/open/js/jweixin-1.4.0.js"></script>
<script type="text/javascript">
let obj = {"openid":oppenid,'user_id':userid,'total':2,'type':2};
$.post('https://www.lovexfang.com/api/wxpay/orderpay',obj,function(data){
let wxdata = data.msg;
wx.config({
debug: false,
appId: wxdata.appId,
timestamp: wxdata.timestamp,
nonceStr: wxdata.nonceStr,
signature: wxdata.signature,
jsApiList: [
"chooseWXPay"
]
});
wx.ready(() => {
wx.chooseWXPay({
'appId': wxdata.appId,
'timestamp': wxdata.timeStamp,
'nonceStr': wxdata.nonceStr,
'package': wxdata.package,
'signType': wxdata.signType,
'paySign': wxdata.paySign,
success: function (res) {
window.location.reload();
},
fail: function (res) {
window.location.reload();
},
complete: function (res) {
window.location.reload();
}
})
})
},'json');
</script>
后端php获取支付参数
public function htmlpay(){
$array = array(
"app_id" => "wxf2edf0bf6fb553b0",//微信公众号appi;
"app_secret" => "0b6aac517951c812a8a2b185592ee14a",//微信公众号密钥
"mch_id" => "1630274740",//商户号;
"key" => "a66aac517951c812a8a2b185592ee14b",//商户号的密钥
"notify" => "https://dnkj.jinhuoban.icu/web/mch.php?s=/api/index/paynotify"//支付后回调地址
);
return $array;
}
public function pay($money="0.01"){
$openid = input('openid')?:'otAtt6SD3Ln3G1u7FD3zjJPsk-m8';
$reannumb = $this->doCreateOrderNumber(); //生成唯一订单号
$pays = $money;
$conf = $this->payconfig($reannumb,$pays*100,'支付程序支付',$openid);
if (!$conf || $conf['return_code'] == 'FAIL'){
echo json_decode(['code'=>403,'msg'=>'支付参数有误']);
die;
}
$array = $this->htmlpay();
$this->orderid = $conf['prepay_id'];
$jsApiObj["appId"] =$conf['appid'];
$timeStamp = time();
$jsApiObj["timeStamp"] = "$timeStamp";
$jsApiObj["nonceStr"] = $this->createNoncestr();
$jsApiObj["package"] = "prepay_id=".$conf['prepay_id'];
$jsApiObj["signType"] = "MD5";
$jsApiObj["paySign"] = $this->MakeSign($jsApiObj,$array['key']);
echo json_encode(array('parameters'=>$jsApiObj));
die();
}
public function doCreateOrderNumber(){
$code = array('AG', 'BI', 'CW', 'DA', 'EL', 'FW', 'GL', 'HO', 'IZ', 'JB');
$osn = $code[intval(rand(0,9))] . strtoupper(dechex(date('m'))) . date('d') . substr(time(), -5) . substr(microtime(), 2, 5) . sprintf('%02d', rand(0, 99));
return $osn;
}
public function MakeSign($data, $key){
$String = $this->formatParameters($data, false);
//签名步骤二：在string后加入KEY
$String = $String . "&key=" . $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 $result;
}
public function formatParameters($paraMap, $urlencode)
{
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if($k=="sign"){
continue;
}
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
$reqPar;
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
public function payconfig($no, $fee, $body,$openid)
{
$url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
$array = $this->htmlpay();
$data['appid'] = $array['app_id'];
$data['mch_id'] = $array['mch_id'];
$data['device_info'] ='WEB';
$data['body'] = $body;
$data['out_trade_no'] =$no;
$data['total_fee'] = $fee;
$data['spbill_create_ip'] = $_SERVER["REMOTE_ADDR"];
$data['notify_url'] =$array['notify'];
$data['trade_type'] = 'JSAPI';
$data['openid']= $openid;
$data['nonce_str'] = $this->createNoncestr();
$data['sign'] = $this->MakeSign($data,$array['key']);
$xml = $this->ToXml($data);
$curl = curl_init(); // 启动一个CURL会话
curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
//设置header
curl_setopt($curl, CURLOPT_HEADER, FALSE);
//要求结果为字符串且输出到屏幕上
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($curl, CURLOPT_POST, TRUE); //发送一个常规的Post请求
curl_setopt($curl, CURLOPT_POSTFIELDS, $xml); // Post提交的数据包
curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环
$tmpInfo = curl_exec($curl); // 执行操作
curl_close($curl); //关闭CURL会话
$arr = $this->FromXml($tmpInfo);
return $arr;
}
public function createNoncestr($length = 32)
{
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
public function randomkeys($length)
{
$pattern = '1234567890123456789012345678905678901234';
$key = null;
for ($i = 0; $i < $length; $i++) {
$key .= $pattern{mt_rand(0, 30)}; //生成php随机数
}
return $key;
}
public function FromXml($xml)
{
//将XML转为array
return json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)),true);
}
public function ToXml($arr)
{
$xml = "<xml>";
foreach ($arr as $key=>$val)
{
if (is_numeric($val))
{
$xml.="<".$key.">".$val."</".$key.">";
}
else
$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
}
$xml.="</xml>";
return $xml;
}
/**
* 首页diy数据
* @return array
* @throws \think\exception\DbException
*/
public function page()
{
// 页面元素
$wxappPage = WxappPage::detail();
$items = $wxappPage['page_data']['array']['items'];
// 新品推荐
$model = new GoodsModel;
$newest = $model->getNewList();
// 猜您喜欢
$best = $model->getBestList();
return $this->renderSuccess(compact('items', 'newest', 'best'));
}
