在这先看看model里所写的几个类:model里有几个类:微信支付类、统一下单接口类、响应型接口基类、请求型接口基类、所有接口基类、配置类。为何要分那么多类而不在一个类里实现所有的方法的,因为,这样看起来代码逻辑清晰,哪个类该干嘛就干嘛。
- Wxpay.php文件:
- <?php
- defined('BASEPATH') OR exit('No direct script access allowed');
- class Wxpay extends MY_Controller {
- public function __construct() {
- parent::__construct();
- $this->load->model('wxpay_model');
- //$this->load->model('wxpay');
- }
- public function index() {
- //微信支付
- $this->smarty['wxPayUrl'] = $this->wxpay_model->retWxPayUrl();
- $this->displayView('wxpay/index.tpl');
- }
- }
获取到code的URL后,将其分配到页面去,让用户去点击,用户进行点击后,就会从微信服务器获取到code,然后回调到redirect_uri所指的地址去。
- <?php
- defined('BASEPATH') OR exit('No direct script access allowed');
- class Wxpay_model extends CI_Model {
- public function __construct() {
- parent::__construct();
- }
- /**
- * 返回可以获得微信code的URL (用以获取openid)
- * @return [type] [description]
- */
- public function retWxPayUrl() {
- $jsApi = new JsApi_handle();
- return $jsApi->createOauthUrlForCode();
- }
- /**
- * 微信jsapi点击支付
- * @param [type] $data [description]
- * @return [type] [description]
- */
- public function wxPayJsApi($data) {
- $jsApi = new JsApi_handle();
- //统一下单接口所需数据
- $payData = $this->returnData($data);
- //获取code码,用以获取openid
- $code = $_GET['code'];
- $jsApi->setCode($code);
- //通过code获取openid
- $openid = $jsApi->getOpenId();
- $unifiedOrderResult = null;
- if ($openid != null) {
- //取得统一下单接口返回的数据
- $unifiedOrderResult = $this->getResult($payData, 'JSAPI', $openid);
- //获取订单接口状态
- $returnMessage = $this->returnMessage($unifiedOrder, 'prepay_id');
- if ($returnMessage['resultCode']) {
- $jsApi->setPrepayId($retuenMessage['resultField']);
- //取得wxjsapi接口所需要的数据
- $returnMessage['resultData'] = $jsApi->getParams();
- }
- return $returnMessage;
- }
- }
- /**
- * 统一下单接口所需要的数据
- * @param [type] $data [description]
- * @return [type] [description]
- */
- public function returnData($data) {
- $payData['sn'] = $data['sn'];
- $payData['body'] = $data['goods_name'];
- $payData['out_trade_no'] = $data['order_no'];
- $payData['total_fee'] = $data['fee'];
- $payData['attach'] = $data['attach'];
- return $payData;
- }
- /**
- * 返回统一下单接口结果 (参考https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1)
- * @param [type] $payData [description]
- * @param [type] $trade_type [description]
- * @param [type] $openid [description]
- * @return [type] [description]
- */
- public function getResult($payData, $trade_type, $openid = null) {
- $unifiedOrder = new UnifiedOrder_handle();
- if ($opneid != null) {
- $unifiedOrder->setParam('openid', $openid);
- }
- $unifiedOrder->setParam('body', $payData['body']); //商品描述
- $unifiedOrder->setParam('out_trade_no', $payData['out_trade_no']); //商户订单号
- $unifiedOrder->setParam('total_fee', $payData['total_fee']); //总金额
- $unifiedOrder->setParam('attach', $payData['attach']); //附加数据
- $unifiedOrder->setParam('notify_url', base_url('/Wxpay/pay_callback'));//通知地址
- $unifiedOrder->setParam('trade_type', $trade_type); //交易类型
- //非必填参数,商户可根据实际情况选填
- //$unifiedOrder->setParam("sub_mch_id","XXXX");//子商户号
- //$unifiedOrder->setParam("device_info","XXXX");//设备号
- //$unifiedOrder->setParam("time_start","XXXX");//交易起始时间
- //$unifiedOrder->setParam("time_expire","XXXX");//交易结束时间
- //$unifiedOrder->setParam("goods_tag","XXXX");//商品标记
- //$unifiedOrder->setParam("product_id","XXXX");//商品ID
- return $unifiedOrder->getResult();
- }
- /**
- * 返回微信订单状态
- */
- public function returnMessage($unifiedOrderResult,$field){
- $arrMessage=array("resultCode"=>0,"resultType"=>"获取错误","resultMsg"=>"该字段为空");
- if($unifiedOrderResult==null){
- $arrMessage["resultType"]="未获取权限";
- $arrMessage["resultMsg"]="请重新打开页面";
- }elseif ($unifiedOrderResult["return_code"] == "FAIL")
- {
- $arrMessage["resultType"]="网络错误";
- $arrMessage["resultMsg"]=$unifiedOrderResult['return_msg'];
- }
- elseif($unifiedOrderResult["result_code"] == "FAIL")
- {
- $arrMessage["resultType"]="订单错误";
- $arrMessage["resultMsg"]=$unifiedOrderResult['err_code_des'];
- }
- elseif($unifiedOrderResult[$field] != NULL)
- {
- $arrMessage["resultCode"]=1;
- $arrMessage["resultType"]="生成订单";
- $arrMessage["resultMsg"]="OK";
- $arrMessage["resultField"] = $unifiedOrderResult[$field];
- }
- return $arrMessage;
- }
- /**
- * 微信回调接口返回 验证签名并回应微信
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function wxPayNotify($xml) {
- $notify = new Wxpay_server();
- $notify->saveData($xml);
- //验证签名,并回复微信
- //对后台通知交互时,如果微信收到商户的应答不是成功或者超时,微信认为通知失败
- //微信会通过一定的策略(如30分钟共8次),定期重新发起通知
- if ($notify->checkSign() == false) {
- $notify->setReturnParameter("return_code","FAIL");//返回状态码
- $notify->setReturnParameter("return_msg","签名失败");//返回信息
- } else {
- $notify->checkSign=TRUE;
- $notify->setReturnParameter("return_code","SUCCESS");//设置返回码
- }
- return $notify;
- }
- }
- /**
- * JSAPI支付——H5网页端调起支付接口
- */
- class JsApi_handle extends JsApi_common {
- public $code;//code码,用以获取openid
- public $openid;//用户的openid
- public $parameters;//jsapi参数,格式为json
- public $prepay_id;//使用统一支付接口得到的预支付id
- public $curl_timeout;//curl超时时间
- function __construct()
- {
- //设置curl超时时间
- $this->curl_timeout = WxPayConf::CURL_TIMEOUT;
- }
- /**
- * 生成获取code的URL
- * @return [type] [description]
- */
- public function createOauthUrlForCode() {
- //重定向URL
- $redirectUrl = "http://www.itcen.cn/wxpay/confirm/".$orderId."?showwxpaytitle=1";
- $urlParams['appid'] = WxPayConf::APPID;
- $urlParams['redirect_uri'] = $redirectUrl;
- $urlParams['response_type'] = 'code';
- $urlParams['scope'] = 'snsapi_base';
- $urlParams['state'] = "STATE"."#wechat_redirect";
- //拼接字符串
- $queryString = $this->ToUrlParams($urlParams, false);
- return "https://open.weixin.qq.com/connect/oauth2/authorize?".$queryString;
- }
- /**
- * 设置code
- * @param [type] $code [description]
- */
- public function setCode($code) {
- $this->code = $code;
- }
- /**
- * 作用:设置prepay_id
- */
- public function setPrepayId($prepayId)
- {
- $this->prepay_id = $prepayId;
- }
- /**
- * 作用:获取jsapi的参数
- */
- public function getParams()
- {
- $jsApiObj["appId"] = WxPayConf::APPID;
- $timeStamp = time();
- $jsApiObj["timeStamp"] = "$timeStamp";
- $jsApiObj["nonceStr"] = $this->createNoncestr();
- $jsApiObj["package"] = "prepay_id=$this->prepay_id";
- $jsApiObj["signType"] = "MD5";
- $jsApiObj["paySign"] = $this->getSign($jsApiObj);
- $this->parameters = json_encode($jsApiObj);
- return $this->parameters;
- }
- /**
- * 通过curl 向微信提交code 用以获取openid
- * @return [type] [description]
- */
- public function getOpenId() {
- //创建openid 的链接
- $url = $this->createOauthUrlForOpenid();
- //初始化
- $ch = curl_init();
- curl_setopt($ch, CURL_TIMEOUT, $this->curl_timeout);
- curl_setopt($ch, CURL_URL, $url);
- curl_setopt($ch, CURL_SSL_VERIFYPEER, FALSE);
- curl_setopt($ch, CURL_SSL_VERIFYHOST, FALSE);
- curl_setopt($ch, CURL_HEADER, FALSE);
- curl_setopt($ch, CURL_RETURNTRANSFER, TRUE);
- //执行curl
- $res = curl_exec($ch);
- curl_close($ch);
- //取出openid
- $data = json_decode($res);
- if (isset($data['openid'])) {
- $this->openid = $data['openid'];
- } else {
- return null;
- }
- return $this->openid;
- }
- /**
- * 生成可以获取openid 的URL
- * @return [type] [description]
- */
- public function createOauthUrlForOpenid() {
- $urlParams['appid'] = WxPayConf::APPID;
- $urlParams['secret'] = WxPayConf::APPSECRET;
- $urlParams['code'] = $this->code;
- $urlParams['grant_type'] = "authorization_code";
- $queryString = $this->ToUrlParams($urlParams, false);
- return "https://api.weixin.qq.com/sns/oauth2/access_token?".$queryString;
- }
- }
- /**
- * 统一下单接口类
- */
- class UnifiedOrder_handle extends Wxpay_client_handle {
- public function __construct() {
- //设置接口链接
- $this->url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
- //设置curl超时时间
- $this->curl_timeout = WxPayConf::CURL_TIMEOUT;
- }
- }
- /**
- * 响应型接口基类
- */
- class Wxpay_server_handle extends JsApi_common{
- public $data; //接收到的数据,类型为关联数组
- public $returnParams; //返回参数,类型为关联数组
- /**
- * 将微信请求的xml转换成关联数组
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function saveData($xml) {
- $this->data = $this->xmlToArray($xml);
- }
- /**
- * 验证签名
- * @return [type] [description]
- */
- public function checkSign() {
- $tmpData = $this->data;
- unset($temData['sign']);
- $sign = $this->getSign($tmpData);
- if ($this->data['sign'] == $sign) {
- return true;
- }
- return false;
- }
- /**
- * 设置返回微信的xml数据
- */
- function setReturnParameter($parameter, $parameterValue)
- {
- $this->returnParameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
- }
- /**
- * 将xml数据返回微信
- */
- function returnXml()
- {
- $returnXml = $this->createXml();
- return $returnXml;
- }
- }
- /**
- * 请求型接口的基类
- */
- class Wxpay_client_handle extends JsApi_common{
- public $params; //请求参数,类型为关联数组
- public $response; //微信返回的响应
- public $result; //返回参数,类型类关联数组
- public $url; //接口链接
- public $curl_timeout; //curl超时时间
- /**
- * 设置请求参数
- * @param [type] $param [description]
- * @param [type] $paramValue [description]
- */
- public function setParam($param, $paramValue) {
- $this->params[$this->tirmString($param)] = $this->trimString($paramValue);
- }
- /**
- * 获取结果,默认不使用证书
- * @return [type] [description]
- */
- public function getResult() {
- $this->postxml();
- $this->result = $this->xmlToArray($this->response);
- return $this->result;
- }
- /**
- * post请求xml
- * @return [type] [description]
- */
- public function postxml() {
- $xml = $this->createXml();
- $this->response = $this->postXmlCurl($xml, $this->curl, $this->curl_timeout);
- return $this->response;
- }
- public function createXml() {
- $this->params['appid'] = WxPayConf::APPID; //公众号ID
- $this->params['mch_id'] = WxPayConf::MCHID; //商户号
- $this->params['nonce_str'] = $this->createNoncestr(); //随机字符串
- $this->params['sign'] = $this->getSign($this->params); //签名
- return $this->arrayToXml($this->params);
- }
- }
- /**
- * 所有接口的基类
- */
- class JsApi_common {
- function __construct() {
- }
- public function trimString($value) {
- $ret = null;
- if (null != $value) {
- $ret = trim($value);
- if (strlen($ret) == 0) {
- $ret = null;
- }
- }
- return $ret;
- }
- /**
- * 产生随机字符串,不长于32位
- * @param integer $length [description]
- * @return [type] [description]
- */
- public function createNoncestr($length = 32) {
- $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
- $str = '';
- for ($i = 0; $i < $length; $i++) {
- $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
- }
- return $str;
- }
- /**
- * 格式化参数 拼接字符串,签名过程需要使用
- * @param [type] $urlParams [description]
- * @param [type] $needUrlencode [description]
- */
- public function ToUrlParams($urlParams, $needUrlencode) {
- $buff = "";
- ksort($urlParams);
- foreach ($urlParams as $k => $v) {
- if($needUrlencode) $v = urlencode($v);
- $buff .= $k .'='. $v .'&';
- }
- $reqString = '';
- if (strlen($buff) > 0) {
- $reqString = substr($buff, 0, strlen($buff) - 1);
- }
- return $reqString;
- }
- /**
- * 生成签名
- * @param [type] $params [description]
- * @return [type] [description]
- */
- public function getSign($obj) {
- foreach ($obj as $k => $v) {
- $params[$k] = $v;
- }
- //签名步骤一:按字典序排序参数
- ksort($params);
- $str = $this->ToUrlParams($params, false);
- //签名步骤二:在$str后加入key
- $str = $str."$key=".WxPayConf::KEY;
- //签名步骤三:md5加密
- $str = md5($str);
- //签名步骤四:所有字符转为大写
- $result = strtoupper($str);
- return $result;
- }
- /**
- * array转xml
- * @param [type] $arr [description]
- * @return [type] [description]
- */
- public function arrayToXml($arr) {
- $xml = "<xml>";
- foreach ($arr as $k => $v) {
- if (is_numeric($val)) {
- $xml .= "<".$key.">".$key."</".$key.">";
- } else {
- $xml .= "<".$key."><![CDATA[".$val."]]></".$key.">";
- }
- }
- $xml .= "</xml>";
- return $xml;
- }
- /**
- * 将xml转为array
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function xmlToArray($xml) {
- $arr = json_decode(json_encode(simplexml_load_string($xml, 'SinpleXMLElement', LIBXML_NOCDATA)), true);
- return $arr;
- }
- /**
- * 以post方式提交xml到对应的接口
- * @param [type] $xml [description]
- * @param [type] $url [description]
- * @param integer $second [description]
- * @return [type] [description]
- */
- public function postXmlCurl($xml, $url, $second = 30) {
- //初始化curl
- $ch = curl_init();
- //设置超时
- curl_setopt($ch, CURL_TIMEOUT, $second);
- curl_setopt($ch, CURL_URL, $url);
- //这里设置代理,如果有的话
- //curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
- //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
- curl_setopt($ch, CURL_SSL_VERIFYHOST, FALSE);
- curl_setopt($ch, CURL_SSL_VERIFYPEER, FALSE);
- //设置header
- curl_setopt($ch, CURL_HEADER, FALSE);
- //要求结果为字符串且输出到屏幕上
- curl_setopt($ch, CURL_RETURNTRANSFER, TRUE);
- //以post方式提交
- curl_setopt($ch, CURL_POST, TRUE);
- curl_setopt($ch, CURL_POSTFIELDS, $xml);
- //执行curl
- $res = curl_exec($ch);
- if ($res) {
- curl_close($ch);
- return $res;
- } else {
- $error = curl_errno($ch);
- echo "curl出错,错误码error"."<br>";
- echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";
- curl_close($ch);
- return false;
- }
- }
- }
- /**
- * 配置类
- */
- class WxPayConf {
- //微信公众号身份的唯一标识。
- const APPID = 'wx654a22c6423213b7';
- //受理商ID,身份标识
- const MCHID = '10043241';
- const MCHNAME = 'KellyCen的博客';
- //商户支付密钥Key。
- const KEY = '0000000000000000000000000000000';
- //JSAPI接口中获取openid
- const APPSECRET = '000000000000000000000000000';
- //证书路径,注意应该填写绝对路径
- const SSLCERT_PATH = '/home/WxPayCacert/apiclient_cert.pem';
- const SSLKEY_PATH = '/home/WxPayCacert/apiclient_key.pem';
- const SSLCA_PATH = '/home/WxPayCacert/rootca.pem';
- //本例程通过curl使用HTTP POST方法,此处可修改其超时时间,默认为30秒
- const CURL_TIMEOUT = 30;
- }
- Wxpay_model.php
这一步开始去取JSAPI支付接口所需要的数据了,这一步算是最主要的一步,这里还会调用统一下单接口获取到prepay_id,我们跳到
- /**
- * 手机端微信支付,此处是授权获取到code时的回调地址
- * @param [type] $orderId 订单编号id
- * @return [type] [description]
- */
- public function confirm($orderId) {
- //先确认用户是否登录
- $this->ensureLogin();
- //通过订单编号获取订单数据
- $order = $this->wxpay_model->get($orderId);
- //验证订单是否是当前用户
- $this->_verifyUser($order);
- //取得支付所需要的订单数据
- $orderData = $this->returnOrderData[$orderId];
- //取得jsApi所需要的数据
- $wxJsApiData = $this->wxpay_model->wxPayJsApi($orderData);
- //将数据分配到模板去,在js里使用
- $this->smartyData['wxJsApiData'] = json_encode($wxJsApiData, JSON_UNESCAPED_UNICODE);
- $this->smartyData['order'] = $orderData;
- $this->displayView('wxpay/confirm.tpl');
- }
这里首先是取得下单接口所需要的数据;
- /**
- * 微信jsapi点击支付
- * @param [type] $data [description]
- * @return [type] [description]
- */
- public function wxPayJsApi($data) {
- $jsApi = new JsApi_handle();
- //统一下单接口所需数据
- $payData = $this->returnData($data);
- //获取code码,用以获取openid
- $code = $_GET['code'];
- $jsApi->setCode($code);
- //通过code获取openid
- $openid = $jsApi->getOpenId();
- $unifiedOrderResult = null;
- if ($openid != null) {
- //取得统一下单接口返回的数据
- $unifiedOrderResult = $this->getResult($payData, 'JSAPI', $openid);
- //获取订单接口状态
- $returnMessage = $this->returnMessage($unifiedOrder, 'prepay_id');
- if ($returnMessage['resultCode']) {
- $jsApi->setPrepayId($retuenMessage['resultField']);
- //取得wxjsapi接口所需要的数据
- $returnMessage['resultData'] = $jsApi->getParams();
- }
- return $returnMessage;
- }
- }
3、此时用户只需要点击支付,就可以开始进入支付界面了,接着就是输入密码,确认,最后会提示支付成功,紧接着网站会提供一个支付成功跳转页面。类似微信文档里所提供的图片这样,这里我就直接截取文档里的案例图了:
- <!doctype html>
- <html>
- <head lang="zh-CN">
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <!-- Make sure that we can test against real IE8 -->
- <meta http-equiv="X-UA-Compatible" content="IE=8" />
- <title></title>
- </head>
- <body>
- <a href="javascript:callpay();" id="btnOrder">点击支付</a>
- </body>
- <script type="text/javascript">
- //将数据付给js变量
- var wxJsApiData = {$wxJsApiData};
- function onBridgeReady()
- {
- //格式参考官方文档 https://pay.weixin.qq.com/wiki/d ... ter=7_7&index=6
- WeixinJSBridge.invoke(
- 'getBrandWCPayRequest',
- $.parseJSON(wxJsApiData.resultData),
- function(res){
- if(res.err_msg == "get_brand_wcpay_requestk" ){
- window.location.href="/wxpay/paysuccess/"+{$order.sn};
- }
- }
- );
- }
- function callpay()
- {
- if(!wxJsApiData.resultCode){
- alert(wxJsApiData.resultType+","+wxJsApiData.resultMsg+"!");
- return false;
- }
- if (typeof WeixinJSBridge == "undefined"){
- if( document.addEventListener ){
- document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false);
- }else if (document.attachEvent){
- document.attachEvent('WeixinJSBridgeReady', onBridgeReady);
- document.attachEvent('onWeixinJSBridgeReady', onBridgeReady);
- }
- }else{
- onBridgeReady();
- }
- }
- </script>
- </html>
这方法就是对支付是否成功,对网站的支付相关逻辑进行后续处理,例如假如支付失败,就需要记录日志里说明此次交易失败,或者是做某一些逻辑处理,而支付成功又该如何做处理,等等。
- /**
- * 支付回调接口
- * @return [type] [description]
- */
- public function pay_callback() {
- $postData = '';
- if (file_get_contents("php://input")) {
- $postData = file_get_contents("php://input");
- } else {
- return;
- }
- $payInfo = array();
- $notify = $this->wxpay_model->wxPayNotify($postData);
- if ($notify->checkSign == TRUE) {
- if ($notify->data['return_code'] == 'FAIL') {
- $payInfo['status'] = FALSE;
- $payInfo['msg'] = '通信出错';
- } elseif ($notify->data['result_code'] == 'FAIL') {
- $payInfo['status'] = FALSE;
- $payInfo['msg'] = '业务出错';
- } else {
- $payInfo['status'] = TRUE;
- $payInfo['msg'] = '支付成功';
- $payInfo['sn']=substr($notify->data['out_trade_no'],8);
- $payInfo['order_no'] = $notify->data['out_trade_no'];
- $payInfo['platform_no']=$notify->data['transaction_id'];
- $payInfo['attach']=$notify->data['attach'];
- $payInfo['fee']=$notify->data['cash_fee'];
- $payInfo['currency']=$notify->data['fee_type'];
- $payInfo['user_sign']=$notify->data['openid'];
- }
- }
- $returnXml = $notify->returnXml();
- echo $returnXml;
- $this->load->library('RedisCache');
- if($payInfo['status']){
- //这里要记录到日志处理(略)
- $this->model->order->onPaySuccess($payInfo['sn'], $payInfo['order_no'], $payInfo['platform_no'],'', $payInfo['user_sign'], $payInfo);
- $this->redis->RedisCache->set('order:payNo:'.$payInfo['order_no'],'OK',5000);
- }else{
- //这里要记录到日志处理(略)
- $this->model->order->onPayFailure($payInfo['sn'], $payInfo['order_no'], $payInfo['platform_no'],'', $payInfo['user_sign'], $payInfo, '订单支付失败 ['.$payInfo['msg'].']');
- }
- }
如果验证通过,则就开始进行交易成功或者失败时所要做的逻辑处理了,这逻辑处理的代码我就不写了,因为每一个网站的处理方式都不一样,我这里是这样处理的,我把思路写下,方便不懂的朋友可以按着我的思路去完善后续的处理:首先是查看数据库里的订单日志表,看这笔交易之前是否已经交易过了,交易过就不用再更新数据表了,如果没交易过,就会将之前存在redis的订单数据给取出来,再将这些数据插入到订单日志表里,差不多就这样处理。
- /**
- * 微信回调接口返回 验证签名并回应微信
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function wxPayNotify($xml) {
- $notify = new Wxpay_server();
- $notify->saveData($xml);
- //验证签名,并回复微信
- //对后台通知交互时,如果微信收到商户的应答不是成功或者超时,微信认为通知失败
- //微信会通过一定的策略(如30分钟共8次),定期重新发起通知
- if ($notify->checkSign() == false) {
- $notify->setReturnParameter("return_code","FAIL");//返回状态码
- $notify->setReturnParameter("return_msg","签名失败");//返回信息
- } else {
- $notify->checkSign=TRUE;
- $notify->setReturnParameter("return_code","SUCCESS");//设置返回码
- }
- return $notify;
- }
模型:Wxpay_model.php
- <?php
- defined('BASEPATH') OR exit('No direct script access allowed');
- class Wxpay extends MY_Controller {
- public function __construct() {
- parent::__construct();
- $this->load->model('wxpay_model');
- //$this->load->model('wxpay');
- }
- public function index() {
- //微信支付
- $this->smarty['wxPayUrl'] = $this->wxpay_model->retWxPayUrl();
- $this->displayView('wxpay/index.tpl');
- }
- /**
- * 手机端微信支付,此处是授权获取到code时的回调地址
- * @param [type] $orderId 订单编号id
- * @return [type] [description]
- */
- public function confirm($orderId) {
- //先确认用户是否登录
- $this->ensureLogin();
- //通过订单编号获取订单数据
- $order = $this->wxpay_model->get($orderId);
- //验证订单是否是当前用户
- $this->_verifyUser($order);
- //取得支付所需要的订单数据
- $orderData = $this->returnOrderData[$orderId];
- //取得jsApi所需要的数据
- $wxJsApiData = $this->wxpay_model->wxPayJsApi($orderData);
- //将数据分配到模板去,在js里使用
- $this->smartyData['wxJsApiData'] = json_encode($wxJsApiData, JSON_UNESCAPED_UNICODE);
- $this->smartyData['order'] = $orderData;
- $this->displayView('wxpay/confirm.tpl');
- }
- /**
- * 支付回调接口
- * @return [type] [description]
- */
- public function pay_callback() {
- $postData = '';
- if (file_get_contents("php://input")) {
- $postData = file_get_contents("php://input");
- } else {
- return;
- }
- $payInfo = array();
- $notify = $this->wxpay_model->wxPayNotify($postData);
- if ($notify->checkSign == TRUE) {
- if ($notify->data['return_code'] == 'FAIL') {
- $payInfo['status'] = FALSE;
- $payInfo['msg'] = '通信出错';
- } elseif ($notify->data['result_code'] == 'FAIL') {
- $payInfo['status'] = FALSE;
- $payInfo['msg'] = '业务出错';
- } else {
- $payInfo['status'] = TRUE;
- $payInfo['msg'] = '支付成功';
- $payInfo['sn']=substr($notify->data['out_trade_no'],8);
- $payInfo['order_no'] = $notify->data['out_trade_no'];
- $payInfo['platform_no']=$notify->data['transaction_id'];
- $payInfo['attach']=$notify->data['attach'];
- $payInfo['fee']=$notify->data['cash_fee'];
- $payInfo['currency']=$notify->data['fee_type'];
- $payInfo['user_sign']=$notify->data['openid'];
- }
- }
- $returnXml = $notify->returnXml();
- echo $returnXml;
- $this->load->library('RedisCache');
- if($payInfo['status']){
- //这里要记录到日志处理(略)
- $this->model->order->onPaySuccess($payInfo['sn'], $payInfo['order_no'], $payInfo['platform_no'],'', $payInfo['user_sign'], $payInfo);
- $this->redis->RedisCache->set('order:payNo:'.$payInfo['order_no'],'OK',5000);
- }else{
- //这里要记录到日志处理(略)
- $this->model->order->onPayFailure($payInfo['sn'], $payInfo['order_no'], $payInfo['platform_no'],'', $payInfo['user_sign'], $payInfo, '订单支付失败 ['.$payInfo['msg'].']');
- }
- }
- /**
- * 返回支付所需要的数据
- * @param [type] $orderId 订单号
- * @param string $data 订单数据,当$data数据存在时刷新$orderData缓存,因为订单号不唯一
- * @return [type] [description]
- */
- public function returnOrderData($orderId, $data = '') {
- //获取订单数据
- $order = $this->wxpay_model->get($orderId);
- if (0 === count($order)) return false;
- if (emptyempty($data)) {
- $this->load->library('RedisCache');
- //取得缓存在redis的订单数据
- $orderData = $this->rediscache->getJson("orderrderData:".$orderId);
- if (emptyempty($orderData)) {
- //如果redis里没有,则直接读数据库取
- $this->load->model('order_model');
- $order = $this->order_model->get($orderId);
- if (0 === count($order)) {
- return false;
- }
- $data = $order;
- } else {
- //如果redis里面有的话,直接返回数据
- return $orderData;
- }
- }
- //支付前缓存所需要的数据
- $orderData['id'] = $data['id'];
- $orderData['fee'] = $data['fee'];
- //支付平台需要的数据
- $orderData['user_id'] = $data['user_id'];
- $orderData['sn'] = $data['cn'];
- //这是唯一编号
- $orderData['order_no'] = substr(md5($data['sn'].$data['fee']), 8, 8).$data['sn'];
- $orderData['fee'] = $data['fee'];
- $orderData['time'] = $data['time'];
- $orderData['goods_name'] = $data['goods_name'];
- $orderData['attach'] = $data['attach'];
- //将数据缓存到redis里面
- $this->rediscache->set("orderrderData:".$orderId, $orderData, 3600*24);
- //做个标识缓存到redis,用以判断该订单是否已经支付了
- $this->rediscache->set("order:payNo:".$orderData['order_no'], "NO", 3600*24);
- return $orderData;
- }
- private function _verifyUser($order) {
- if (emptyempty($order)) show_404();
- if (0 === count($order)) show_404();
- //判断订单表里的用户id是否是当前登录者的id
- if ($order['user_id'] == $this->uid) return;
- show_error('只能查看自己的订单');
- }
- }
- 控制器:Wxpay.php
视图:index.tpl
- <?php
- defined('BASEPATH') OR exit('No direct script access allowed');
- class Wxpay_model extends CI_Model {
- public function __construct() {
- parent::__construct();
- }
- /**
- * 返回可以获得微信code的URL (用以获取openid)
- * @return [type] [description]
- */
- public function retWxPayUrl() {
- $jsApi = new JsApi_handle();
- return $jsApi->createOauthUrlForCode();
- }
- /**
- * 微信jsapi点击支付
- * @param [type] $data [description]
- * @return [type] [description]
- */
- public function wxPayJsApi($data) {
- $jsApi = new JsApi_handle();
- //统一下单接口所需数据
- $payData = $this->returnData($data);
- //获取code码,用以获取openid
- $code = $_GET['code'];
- $jsApi->setCode($code);
- //通过code获取openid
- $openid = $jsApi->getOpenId();
- $unifiedOrderResult = null;
- if ($openid != null) {
- //取得统一下单接口返回的数据
- $unifiedOrderResult = $this->getResult($payData, 'JSAPI', $openid);
- //获取订单接口状态
- $returnMessage = $this->returnMessage($unifiedOrder, 'prepay_id');
- if ($returnMessage['resultCode']) {
- $jsApi->setPrepayId($retuenMessage['resultField']);
- //取得wxjsapi接口所需要的数据
- $returnMessage['resultData'] = $jsApi->getParams();
- }
- return $returnMessage;
- }
- }
- /**
- * 统一下单接口所需要的数据
- * @param [type] $data [description]
- * @return [type] [description]
- */
- public function returnData($data) {
- $payData['sn'] = $data['sn'];
- $payData['body'] = $data['goods_name'];
- $payData['out_trade_no'] = $data['order_no'];
- $payData['total_fee'] = $data['fee'];
- $payData['attach'] = $data['attach'];
- return $payData;
- }
- /**
- * 返回统一下单接口结果 (参考https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1)
- * @param [type] $payData [description]
- * @param [type] $trade_type [description]
- * @param [type] $openid [description]
- * @return [type] [description]
- */
- public function getResult($payData, $trade_type, $openid = null) {
- $unifiedOrder = new UnifiedOrder_handle();
- if ($opneid != null) {
- $unifiedOrder->setParam('openid', $openid);
- }
- $unifiedOrder->setParam('body', $payData['body']); //商品描述
- $unifiedOrder->setParam('out_trade_no', $payData['out_trade_no']); //商户订单号
- $unifiedOrder->setParam('total_fee', $payData['total_fee']); //总金额
- $unifiedOrder->setParam('attach', $payData['attach']); //附加数据
- $unifiedOrder->setParam('notify_url', base_url('/Wxpay/pay_callback'));//通知地址
- $unifiedOrder->setParam('trade_type', $trade_type); //交易类型
- //非必填参数,商户可根据实际情况选填
- //$unifiedOrder->setParam("sub_mch_id","XXXX");//子商户号
- //$unifiedOrder->setParam("device_info","XXXX");//设备号
- //$unifiedOrder->setParam("time_start","XXXX");//交易起始时间
- //$unifiedOrder->setParam("time_expire","XXXX");//交易结束时间
- //$unifiedOrder->setParam("goods_tag","XXXX");//商品标记
- //$unifiedOrder->setParam("product_id","XXXX");//商品ID
- return $unifiedOrder->getResult();
- }
- /**
- * 返回微信订单状态
- */
- public function returnMessage($unifiedOrderResult,$field){
- $arrMessage=array("resultCode"=>0,"resultType"=>"获取错误","resultMsg"=>"该字段为空");
- if($unifiedOrderResult==null){
- $arrMessage["resultType"]="未获取权限";
- $arrMessage["resultMsg"]="请重新打开页面";
- }elseif ($unifiedOrderResult["return_code"] == "FAIL")
- {
- $arrMessage["resultType"]="网络错误";
- $arrMessage["resultMsg"]=$unifiedOrderResult['return_msg'];
- }
- elseif($unifiedOrderResult["result_code"] == "FAIL")
- {
- $arrMessage["resultType"]="订单错误";
- $arrMessage["resultMsg"]=$unifiedOrderResult['err_code_des'];
- }
- elseif($unifiedOrderResult[$field] != NULL)
- {
- $arrMessage["resultCode"]=1;
- $arrMessage["resultType"]="生成订单";
- $arrMessage["resultMsg"]="OK";
- $arrMessage["resultField"] = $unifiedOrderResult[$field];
- }
- return $arrMessage;
- }
- /**
- * 微信回调接口返回 验证签名并回应微信
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function wxPayNotify($xml) {
- $notify = new Wxpay_server();
- $notify->saveData($xml);
- //验证签名,并回复微信
- //对后台通知交互时,如果微信收到商户的应答不是成功或者超时,微信认为通知失败
- //微信会通过一定的策略(如30分钟共8次),定期重新发起通知
- if ($notify->checkSign() == false) {
- $notify->setReturnParameter("return_code","FAIL");//返回状态码
- $notify->setReturnParameter("return_msg","签名失败");//返回信息
- } else {
- $notify->checkSign=TRUE;
- $notify->setReturnParameter("return_code","SUCCESS");//设置返回码
- }
- return $notify;
- }
- }
- /**
- * JSAPI支付——H5网页端调起支付接口
- */
- class JsApi_handle extends JsApi_common {
- public $code;//code码,用以获取openid
- public $openid;//用户的openid
- public $parameters;//jsapi参数,格式为json
- public $prepay_id;//使用统一支付接口得到的预支付id
- public $curl_timeout;//curl超时时间
- function __construct()
- {
- //设置curl超时时间
- $this->curl_timeout = WxPayConf::CURL_TIMEOUT;
- }
- /**
- * 生成获取code的URL
- * @return [type] [description]
- */
- public function createOauthUrlForCode() {
- //重定向URL
- $redirectUrl = "http://www.itcen.cn/wxpay/confirm/".$orderId."?showwxpaytitle=1";
- $urlParams['appid'] = WxPayConf::APPID;
- $urlParams['redirect_uri'] = $redirectUrl;
- $urlParams['response_type'] = 'code';
- $urlParams['scope'] = 'snsapi_base';
- $urlParams['state'] = "STATE"."#wechat_redirect";
- //拼接字符串
- $queryString = $this->ToUrlParams($urlParams, false);
- return "https://open.weixin.qq.com/connect/oauth2/authorize?".$queryString;
- }
- /**
- * 设置code
- * @param [type] $code [description]
- */
- public function setCode($code) {
- $this->code = $code;
- }
- /**
- * 作用:设置prepay_id
- */
- public function setPrepayId($prepayId)
- {
- $this->prepay_id = $prepayId;
- }
- /**
- * 作用:获取jsapi的参数
- */
- public function getParams()
- {
- $jsApiObj["appId"] = WxPayConf::APPID;
- $timeStamp = time();
- $jsApiObj["timeStamp"] = "$timeStamp";
- $jsApiObj["nonceStr"] = $this->createNoncestr();
- $jsApiObj["package"] = "prepay_id=$this->prepay_id";
- $jsApiObj["signType"] = "MD5";
- $jsApiObj["paySign"] = $this->getSign($jsApiObj);
- $this->parameters = json_encode($jsApiObj);
- return $this->parameters;
- }
- /**
- * 通过curl 向微信提交code 用以获取openid
- * @return [type] [description]
- */
- public function getOpenId() {
- //创建openid 的链接
- $url = $this->createOauthUrlForOpenid();
- //初始化
- $ch = curl_init();
- curl_setopt($ch, CURL_TIMEOUT, $this->curl_timeout);
- curl_setopt($ch, CURL_URL, $url);
- curl_setopt($ch, CURL_SSL_VERIFYPEER, FALSE);
- curl_setopt($ch, CURL_SSL_VERIFYHOST, FALSE);
- curl_setopt($ch, CURL_HEADER, FALSE);
- curl_setopt($ch, CURL_RETURNTRANSFER, TRUE);
- //执行curl
- $res = curl_exec($ch);
- curl_close($ch);
- //取出openid
- $data = json_decode($res);
- if (isset($data['openid'])) {
- $this->openid = $data['openid'];
- } else {
- return null;
- }
- return $this->openid;
- }
- /**
- * 生成可以获取openid 的URL
- * @return [type] [description]
- */
- public function createOauthUrlForOpenid() {
- $urlParams['appid'] = WxPayConf::APPID;
- $urlParams['secret'] = WxPayConf::APPSECRET;
- $urlParams['code'] = $this->code;
- $urlParams['grant_type'] = "authorization_code";
- $queryString = $this->ToUrlParams($urlParams, false);
- return "https://api.weixin.qq.com/sns/oauth2/access_token?".$queryString;
- }
- }
- /**
- * 统一下单接口类
- */
- class UnifiedOrder_handle extends Wxpay_client_handle {
- public function __construct() {
- //设置接口链接
- $this->url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
- //设置curl超时时间
- $this->curl_timeout = WxPayConf::CURL_TIMEOUT;
- }
- }
- /**
- * 响应型接口基类
- */
- class Wxpay_server_handle extends JsApi_common{
- public $data; //接收到的数据,类型为关联数组
- public $returnParams; //返回参数,类型为关联数组
- /**
- * 将微信请求的xml转换成关联数组
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function saveData($xml) {
- $this->data = $this->xmlToArray($xml);
- }
- /**
- * 验证签名
- * @return [type] [description]
- */
- public function checkSign() {
- $tmpData = $this->data;
- unset($temData['sign']);
- $sign = $this->getSign($tmpData);
- if ($this->data['sign'] == $sign) {
- return true;
- }
- return false;
- }
- /**
- * 设置返回微信的xml数据
- */
- function setReturnParameter($parameter, $parameterValue)
- {
- $this->returnParameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
- }
- /**
- * 将xml数据返回微信
- */
- function returnXml()
- {
- $returnXml = $this->createXml();
- return $returnXml;
- }
- }
- /**
- * 请求型接口的基类
- */
- class Wxpay_client_handle extends JsApi_common{
- public $params; //请求参数,类型为关联数组
- public $response; //微信返回的响应
- public $result; //返回参数,类型类关联数组
- public $url; //接口链接
- public $curl_timeout; //curl超时时间
- /**
- * 设置请求参数
- * @param [type] $param [description]
- * @param [type] $paramValue [description]
- */
- public function setParam($param, $paramValue) {
- $this->params[$this->tirmString($param)] = $this->trimString($paramValue);
- }
- /**
- * 获取结果,默认不使用证书
- * @return [type] [description]
- */
- public function getResult() {
- $this->postxml();
- $this->result = $this->xmlToArray($this->response);
- return $this->result;
- }
- /**
- * post请求xml
- * @return [type] [description]
- */
- public function postxml() {
- $xml = $this->createXml();
- $this->response = $this->postXmlCurl($xml, $this->curl, $this->curl_timeout);
- return $this->response;
- }
- public function createXml() {
- $this->params['appid'] = WxPayConf::APPID; //公众号ID
- $this->params['mch_id'] = WxPayConf::MCHID; //商户号
- $this->params['nonce_str'] = $this->createNoncestr(); //随机字符串
- $this->params['sign'] = $this->getSign($this->params); //签名
- return $this->arrayToXml($this->params);
- }
- }
- /**
- * 所有接口的基类
- */
- class JsApi_common {
- function __construct() {
- }
- public function trimString($value) {
- $ret = null;
- if (null != $value) {
- $ret = trim($value);
- if (strlen($ret) == 0) {
- $ret = null;
- }
- }
- return $ret;
- }
- /**
- * 产生随机字符串,不长于32位
- * @param integer $length [description]
- * @return [type] [description]
- */
- public function createNoncestr($length = 32) {
- $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
- $str = '';
- for ($i = 0; $i < $length; $i++) {
- $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
- }
- return $str;
- }
- /**
- * 格式化参数 拼接字符串,签名过程需要使用
- * @param [type] $urlParams [description]
- * @param [type] $needUrlencode [description]
- */
- public function ToUrlParams($urlParams, $needUrlencode) {
- $buff = "";
- ksort($urlParams);
- foreach ($urlParams as $k => $v) {
- if($needUrlencode) $v = urlencode($v);
- $buff .= $k .'='. $v .'&';
- }
- $reqString = '';
- if (strlen($buff) > 0) {
- $reqString = substr($buff, 0, strlen($buff) - 1);
- }
- return $reqString;
- }
- /**
- * 生成签名
- * @param [type] $params [description]
- * @return [type] [description]
- */
- public function getSign($obj) {
- foreach ($obj as $k => $v) {
- $params[$k] = $v;
- }
- //签名步骤一:按字典序排序参数
- ksort($params);
- $str = $this->ToUrlParams($params, false);
- //签名步骤二:在$str后加入key
- $str = $str."$key=".WxPayConf::KEY;
- //签名步骤三:md5加密
- $str = md5($str);
- //签名步骤四:所有字符转为大写
- $result = strtoupper($str);
- return $result;
- }
- /**
- * array转xml
- * @param [type] $arr [description]
- * @return [type] [description]
- */
- public function arrayToXml($arr) {
- $xml = "<xml>";
- foreach ($arr as $k => $v) {
- if (is_numeric($val)) {
- $xml .= "<".$key.">".$key."</".$key.">";
- } else {
- $xml .= "<".$key."><![CDATA[".$val."]]></".$key.">";
- }
- }
- $xml .= "</xml>";
- return $xml;
- }
- /**
- * 将xml转为array
- * @param [type] $xml [description]
- * @return [type] [description]
- */
- public function xmlToArray($xml) {
- $arr = json_decode(json_encode(simplexml_load_string($xml, 'SinpleXMLElement', LIBXML_NOCDATA)), true);
- return $arr;
- }
- /**
- * 以post方式提交xml到对应的接口
- * @param [type] $xml [description]
- * @param [type] $url [description]
- * @param integer $second [description]
- * @return [type] [description]
- */
- public function postXmlCurl($xml, $url, $second = 30) {
- //初始化curl
- $ch = curl_init();
- //设置超时
- curl_setopt($ch, CURL_TIMEOUT, $second);
- curl_setopt($ch, CURL_URL, $url);
- //这里设置代理,如果有的话
- //curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
- //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
- curl_setopt($ch, CURL_SSL_VERIFYHOST, FALSE);
- curl_setopt($ch, CURL_SSL_VERIFYPEER, FALSE);
- //设置header
- curl_setopt($ch, CURL_HEADER, FALSE);
- //要求结果为字符串且输出到屏幕上
- curl_setopt($ch, CURL_RETURNTRANSFER, TRUE);
- //以post方式提交
- curl_setopt($ch, CURL_POST, TRUE);
- curl_setopt($ch, CURL_POSTFIELDS, $xml);
- //执行curl
- $res = curl_exec($ch);
- if ($res) {
- curl_close($ch);
- return $res;
- } else {
- $error = curl_errno($ch);
- echo "curl出错,错误码error"."<br>";
- echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";
- curl_close($ch);
- return false;
- }
- }
- }
- /**
- * 配置类
- */
- class WxPayConf {
- //微信公众号身份的唯一标识。
- const APPID = 'wx654a22c6423213b7';
- //受理商ID,身份标识
- const MCHID = '10043241';
- const MCHNAME = 'KellyCen的博客';
- //商户支付密钥Key。
- const KEY = '0000000000000000000000000000000';
- //JSAPI接口中获取openid
- const APPSECRET = '000000000000000000000000000';
- //证书路径,注意应该填写绝对路径
- const SSLCERT_PATH = '/home/WxPayCacert/apiclient_cert.pem';
- const SSLKEY_PATH = '/home/WxPayCacert/apiclient_key.pem';
- const SSLCA_PATH = '/home/WxPayCacert/rootca.pem';
- //本例程通过curl使用HTTP POST方法,此处可修改其超时时间,默认为30秒
- const CURL_TIMEOUT = 30;
- }
- 模型:Wxpay_model.php
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