小程序获取用户的openid，在app.js保存下openid
//app.jsApp({ onLaunch: function () { // 展示本地存储能力 var logs = wx.getStorageSync('logs') || [] logs.unshift(Date.now()) wx.setStorageSync('logs', logs) // 登录 var that = this; wx.login({ success(res) { console.log(res); if (res.code) { // 发起网络请求 wx.request({ url: 'https://api.test.top/login.php', data: { code: res.code }, header: { 'content-type': "application/x-www-form-urlencoded" }, success(api_result) { console.log(api_result.data.data); if (api_result.data.status == 1000) { that.globalData.openid = api_result.data.data.openid; console.log(123); } else { wx.showToast({ title: '获取openid失败', icon: 'none' }) } // console.log( api_result ); } }) } else { console.log('登录失败！' + res.errMsg) } } }) }, globalData: { userInfo: null, openid:null }})视图页面添加一个按钮，添加点击事件
<button bindtap="wechatTestPay">支付一分钱</button>js页面
//index.js//获取应用实例const app = getApp() Page({ data: { motto: 'Hello World', userInfo: {}, hasUserInfo: false, canIUse: wx.canIUse('button.open-type.getUserInfo') }, //事件处理函数 bindViewTap: function() { wx.navigateTo({ url: '../logs/logs' }) }, onLoad: function () { }, wechatTestPay:function( e ){ var that = this; // console.log(app.globalData); wx.request({ url: 'https://接口地址/wechatpay.php', data: { openid: app.globalData.openid }, header: { 'content-type': "application/x-www-form-urlencoded" }, success(api_result) { console.log(api_result.data.data); if (api_result.data.status == 1000) { // that.globalData.openid = api_result.data.data.openid; wx.requestPayment( { 'timeStamp':api_result.data.data.timeStamp, 'nonceStr': api_result.data.data.nonceStr, 'package': api_result.data.data.package, 'signType': 'MD5', 'paySign': api_result.data.data.paySign, 'success': function (res) { console.log('success'); console.log(res); }, 'fail': function (res) { console.log('fail'); console.log(res); }, 'complete': function (res) { console.log('complete'); console.log(res); } }) } else { wx.showToast({ title: '统一下单失败', icon: 'none' }) } // console.log( api_result ); } }) }})调用服务段接口：
<?php #微信统一下单接口$url='https://api.mch.weixin.qq.com/pay/unifiedorder'; $param=[ #公众账号ID 'appid'=>'微信小程序id', 'mch_id'=>'商户id', 'nonce_str'=>uniqid(), 'sign_type'=>'MD5', 'body'=>'test', 'detail'=>'test', 'out_trade_no'=>date('Ymd').rand(10000,99999), 'total_fee'=>1, 'spbill_create_ip'=>$_SERVER['SERVER_ADDR'], 'notify_url'=>'https://你的域名/notify.php', 'trade_type'=>'JSAPI', 'openid' => $_GET['openid']];ksort($param); $sign_str=urldecode(http_build_query($param)); $sign_str.='&key=商户的密钥'; $sign_str=md5($sign_str); $param['sign']=strtoupper($sign_str); //print_r($param);exit;function CurlPost($url, $param = [], $is_post = 1, $timeout = 5 ) { //初始化curl $curl = curl_init(); // 设置请求的路径 curl_setopt($curl, CURLOPT_URL, $url); if ($is_post == 1) { //设置POST提交 curl_setopt($curl, CURLOPT_POST, 0); } //显示输出结果 1代表 把接口返回的结果当作一个字符串处理 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // 设置请求超时时间 curl_setopt($curl, CURLOPT_TIMEOUT, $timeout); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); if ($is_post == 1) { //提交数据 -- 设置post提交的数据 if (is_array($param)) { //http_build_query curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($param)); } else { curl_setopt($curl, CURLOPT_POSTFIELDS, $param); } } //执行请求 $data = $data_str = curl_exec($curl); //处理错误 if ($error = curl_error($curl)) { $log_data = array( 'url' => $url, 'param' => $param, 'error' => '<span style="color:red;font-weight: bold">' . $error . '</span>', ); var_dump($log_data); exit; } # 关闭CURL curl_close($curl); //json数据转换为数组 $data = json_decode($data, true); if (!is_array($data)) { $data = $data_str; } #调用玩接口之后写一个日志 $log = [ 'url' => $url, 'param' => $param, 'response' => $data_str ]; file_put_contents(__DIR__ . '/wechat.log', print_r($log, true), 8); return $data; } function arrzxml($arr){ $xml='<xml version="1.0" encoding="UTF-8">'; foreach($arr as $key=>$value){ if(is_numeric($value)){ $xml.="<".$key.">".$value."</".$key.">"; }else{ $xml.="<".$key."><![CDATA[".$value."]]></".$key.">"; } } $xml.='</xml>';// var_dump($xml);exit; return $xml; } $xml=arrzxml($param);$result=CurlPost($url,arrzxml($param));//echo '<pre/>';$api_arr = json_decode( json_encode(simplexml_load_string( $result , 'SimpleXMLElement', LIBXML_NOCDATA) ), true );if( $api_arr['return_code'] == 'SUCCESS' ){ # 统一下单接口成功， 再次加密 $prepay_id = $api_arr['prepay_id']; $arr = [ 'appId' => 'appid', 'timeStamp' =>"".time(), 'nonceStr' => uniqid(), 'package' => "prepay_id=$prepay_id", 'signType' => 'MD5' ]; ksort( $arr ); $sign_str=urldecode( http_build_query($arr) ); $sign_str.='&key=商户密钥'; $sign_str=md5($sign_str); $arr['paySign'] = $sign_str; $api_return = [ 'status' => 1000, 'data' => $arr, 'success' => 'ok' ]; }else{ $api_return = [ 'status' => 1, 'data' => [], 'msg' => '统一下单失败' ];} echo json_encode( $api_return );exit;
