本事例代码基于Laravel框架。
1.首先你的微信商户号需要开通微信H5支付
2.你的支付网站的域名需要在微信商户号后台配置
3.回调地址需要在外网中能打开并且能接受post请求，可以用postman检查一下。
事例代码：
支付类：
<?php
namespace App\Http\Controllers\Wechat;
/**
* 微信支付服务器端下单
* 微信APP支付文档地址: https://pay.weixin.qq.com/wiki/doc/api/app.php?chapter=8_6
* 使用示例
* 构造方法参数
* 'appid' => //填写微信分配的公众账号ID
* 'mch_id' => //填写微信支付分配的商户号
* 'notify_url'=> //填写微信支付结果回调地址
* 'key' => //填写微信商户支付密钥
* );
* 统一下单方法
* $WechatAppPay = new wechatAppPay($options);
* $params['body'] = '商品描述'; //商品描述
* $params['out_trade_no'] = '1217752501201407'; //自定义的订单号，不能重复
* $params['total_fee'] = '100'; //订单金额 只能为整数 单位为分
* $params['trade_type'] = 'APP'; //交易类型 JSAPI | NATIVE |APP | WAP
* $wechatAppPay->unifiedOrder( $params );
*/
class WxH5PayController
{
//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='';
//支付密钥
private $key='';
//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;
//证书路径
private $SSLCERT_PATH;
private $SSLKEY_PATH;
//所有参数
private $params = array();
public function __construct($notifyUrl)
{
//回调地址
$this->notify_url = $notifyUrl;
}
/**
* 下单方法
* @param $params 下单参数 有色半导体
*/
public function unifiedOrder($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->scene_info = $params['scene_info'];
$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;
$this->params['scene_info'] = $this->scene_info;
//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 = $GLOBALS['HTTP_RAW_POST_DATA'];
//echo 123;die;
$data = array();
if (empty($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=" . $this->key;
//var_dump($string);exit;
//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 3，9，1
* @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;
}
header("Content-type:text/xml;charset=utf-8");
$xml = "<xml>";
foreach ($params as $key => $val) {
//var_dump($xml);exit;
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else {
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
//var_dump($xml);exit;
}
}
$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];
}
}
}调用支付：
<?php
namespace App\Http\Controllers\Wechat;
use App\Http\Controllers\Controller;
use App\Models\WechatOrder;
use Illuminate\Support\Facades\Log;
use Illuminate\Http\Request;
class PayController extends Controller
{
//H5支付回调地址
const HOST='https://huidiao.zhifu.com';
const H5_NOTIFY_URL='/wechat/h5_notify';
//生成订单号
public function makeOrder(){
ini_set('date.timezone', 'Asia/Shanghai');
return date('YmdHi').substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 4);
}
//判断手机还是电脑
function isMobile(){
$useragent=isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
$useragent_commentsblock=preg_match('|\(.*?\)|',$useragent,$matches)>0?$matches[0]:'';
function CheckSubstrs($substrs,$text){
foreach($substrs as $substr)
if(false!==strpos($text,$substr)){
return true;
}
return false;
}
$mobile_os_list=array('Google Wireless Transcoder','Windows CE','WindowsCE','Symbian','Android','armv6l','armv5','Mobile','CentOS','mowser','AvantGo','Opera Mobi','J2ME/MIDP','Smartphone','Go.Web','Palm','iPAQ');
$mobile_token_list=array('Profile/MIDP','Configuration/CLDC-','160×160','176×220','240×240','240×320','320×240','UP.Browser','UP.Link','SymbianOS','PalmOS','PocketPC','SonyEricsson','Nokia','BlackBerry','Vodafone','BenQ','Novarra-Vision','Iris','NetFront','HTC_','Xda_','SAMSUNG-SGH','Wapaka','DoCoMo','iPhone','iPod');
$found_mobile=CheckSubstrs($mobile_os_list,$useragent_commentsblock) ||
CheckSubstrs($mobile_token_list,$useragent);
if ($found_mobile){
return true;
}else{
return false;
}
}
//支付
public function pay(Request $request){
//跨域
header('Access-Control-Allow-Origin:*');
header("Access-Control-Allow-Methods:POST, GET, OPTIONS, DELETE");
header("Access-Control-Allow-Headers:x-requested-with,Authorization,token,webCode,source, content-type"); //这里要加上content-type
header("Access-Control-Allow-Credentials:true");
//判断来源
if (!$this->isMobile()){
return returnError('请用手机浏览器打开！');
}
$referrer = $request->headers->get('referer');
$notifyUrl = self::HOST.self::H5_NOTIFY_URL;
$wechatAppPay = new WxH5PayController($notifyUrl);
$params['body'] = '微信H5支付测试';
//var_dump($referrer);exit;
//订单号
$params['out_trade_no'] = $this->makeOrder();//订单号
$params['total_fee'] = '1';//订单金额 只能为整数 单位为分
$params['trade_type'] = 'MWEB'; // 交易类型 MWEB
$host = $referrer;//来源地址
$name='微信支付测试订单';
$params['scene_info'] = '{"h5_info": {"type":"Wap","wap_url": ' . $host . ',"wap_name":"'.$name.'"}}';
$result = $wechatAppPay->unifiedOrder($params);
Log::info($result);
if ($result['return_code'] !='SUCCESS'){
return returnError($result['return_msg']);
}
//创建订单信息
try{
$data=[
'out_trade_no'=>$params['out_trade_no'],
'total_fee'=>$params['total_fee'],
'scene_info'=>$params['scene_info'],
'type'=>0,
'code'=>$result['return_code'],
'msg'=>isset($result['return_msg']) ? $result['return_msg'] : '',
'create_time'=>time(),
];
WechatOrder::insert($data);
}catch(\Exception $e){
return returnError('订单入库失败');
}
$url = $result['mweb_url'];//可以在MWEB_URL后拼接上redirect_url参数，来指定回调页面
return returnSuceess('success',$url);
}
//支付回调 注意回调要能被post方式访问
public function h5NotifyUrl(){
$strPost = isset($GLOBALS["HTTP_RAW_POST_DATA"]) ? $GLOBALS["HTTP_RAW_POST_DATA"] : file_get_contents('php://input');
//Log::info($strPost);
if (!empty($strPost)){
libxml_disable_entity_loader(true);
$postObj = simplexml_load_string($strPost, 'SimpleXMLElement', LIBXML_NOCDATA);
$postObj = json_encode($postObj);
$postObj = json_decode($postObj, true);
Log::info($postObj);
$out_trade_no = isset($postObj["out_trade_no"]) ? trim($postObj["out_trade_no"]) : '';
$openid = isset($postObj["openid"]) ? trim($postObj["openid"]) : '';
$is_subscribe = isset($postObj["is_subscribe"]) ? trim($postObj["is_subscribe"]) : 0;
$time_end = isset($postObj["time_end"]) ? trim($postObj["time_end"]) : 0;
$transaction_id = isset($postObj["transaction_id"]) ? trim($postObj["transaction_id"]) : '';
if ($postObj["result_code"] == 'SUCCESS' && $postObj["return_code"] == 'SUCCESS' && $out_trade_no) {
//支付完成之后更新数据库状态
try{
WechatOrder::where(['out_trade_no'=>$out_trade_no])->update([
'type'=>1,
'update_time'=>time(),
'openid'=>$openid,
'is_subscribe'=>$is_subscribe,
'time_end'=>$time_end,
'transaction_id'=>$transaction_id,
]);
echo "<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>";
}catch(\Exception $e){
Log::info('订单入库失败'.$e->getMessage());
}
}else{
Log::info('回调失败');
}
}else{
Log::info('没有回调数据！');
}
}
}前端调用：
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="referrer" content="origin" />
</head>
<div>
<button onclick="zhifu()">点击支付</button>
</div>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.js"></script>
<script>
function zhifu() {
$.ajax({
type: "get",
url: 'https://api.zhifu.com/wechat/pay',
success:function(data){
if(data.code==1){
console.log(data);
window.location.replace(data.data + '&redirect_url=' + encodeURI('http://www.baidu.com'));
}else{
alert(JSON.parse(JSON.stringify(data.msg)));
}
},
error: function() {
alert("网络延时造成通信失败，请稍后再试;");
return false;
},
dataType:"json"
});
}
</script>
</html>♥ 作者：离岸少年
本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
