[移动开发]微信小程序之RedisLock.class防止超出

参考文章：php 使用redis锁限制并发访问类

var util = require("../../utils/util.js");
var app = getApp();
Page({

    /**
     * 页面的初始数据
     */
    data: {
  
    },

    //初始化点击次数变量
    shezhi: 0,

    //去支付
    onShoppinglist: function (e) {
        var that = this;
        if (that.shezhi == 1) {
            return;
        }
        that.shezhi = 1;
        wx.showLoading({
            title: '请稍等',
            mask: true,
        })
        //发送请求执行demo.php，请求的数据返回orderPayCallback函数
    },

    //初始化访问链接次数
    Loadtime: 0,
    
    //下单回调
    orderPayCallback: function (that, data) {
        //如果当前的锁没有释放
        if (data.msg == 'is_lock') {
            //累加回调onShoppinglist次数
            that.Loadtime++;
            //如果当前回调的次数大于等于5次，返回上一页，否则初始化点击次数变量，重新发起去支付onShoppinglist
            if (that.Loadtime >= 5) {
                wx.showModal({
                    title: '提示',
                    content: '当前商品下单人数过多，请稍后再试！',
                    showCancel: false,
                    success: function (res) {
                        if (res.confirm) { //这里是点击了确定以后
                            wx.navigateBack({
                                delta: 1
                            })
                        }
                    }
                })
                return;
            } else {
                //初始化点击次数变量，重新发起去支付onShoppinglist
                that.shezhi = 0;
                that.onShoppinglist();
                return;
            }
        }
        var shopDanhao = data.shopDanhao;
        wx.showLoading({
            title: '请稍等',
            mask: true
        })
        //请求执行pay.php，请求微信支付接口，返回接口回调paySuccessCallback 
    },

    //支付回调
    paySuccessCallback: function (that, data) {
        //console.log(data);
        if (data.msg == "yuePaySuccess") {
            wx.hideLoading();
            wx.setStorageSync('tempSuccessGoUrl', '/pages/member/member-order/member-order?admin=20');
            wx.showModal({
                title: '提示',
                content: "支付成功",
                showCancel: false,
                complete: function () {
                    wx.switchTab({
                        url: '/pages/user/user'
                    })
                }
            })
            return;
        }
        // 发起微信支付
        wx.requestPayment({
            'appId': data.subjects.appId,
            'timeStamp': data.subjects.timeStamp,
            'nonceStr': data.subjects.nonceStr,
            'package': data.subjects.package,
            'signType': data.subjects.signType,
            'paySign': data.subjects.paySign,
            'success': function (res) {
                //console.log(res)
                wx.hideLoading();
                wx.setStorageSync('tempSuccessGoUrl', '/pages/member/member-order/member-order?admin=20');
                wx.showModal({
                    title: '提示',
                    content: '支付成功',
                    showCancel: false,
                    complete: function () {
                        wx.switchTab({
                            url: '/pages/user/user'
                        })
                    }
                })
            },
            'fail': function (res) {
                //console.log(res)
                wx.hideLoading();
                wx.setStorageSync('tempSuccessGoUrl', '/pages/member/member-order/member-order?admin=10');
                wx.showModal({
                    title: '提示',
                    content: '支付失败\r\n您可以选择重新付款',
                    showCancel: false,
                    complete: function () {
                        wx.switchTab({
                            url: '/pages/user/user'
                        })
                    }
                })
            }
        });
    },
    /**
     * 生命周期函数--监听页面隐藏
     */
    onHide: function () {

    },

    /**
     * 生命周期函数--监听页面卸载
     */
    onUnload: function () {

    },

})

demo.php文件

<?php
    // 创建redislock对象
    $RedisLock = new RedisLock(array(
        'host' => '127.0.0.1',
        'port' => 6379,
        'index' => 0,
        'auth' => '',
        'timeout' => 1,
        'reserved' => NULL,
        'retry_interval' => 100,
    ));
        // 定义锁标识
        $RedisLock_key = 'lock_order_' . $detailId . '';
        // 获取锁
        $is_lock = $RedisLock->lock($RedisLock_key, 20);
        if (!$is_lock) {
            $infoArray = array();
            $infoArray["code"] = 200;
            $infoArray["msg"] = "is_lock";
            $infoArray["rm_id"] = $rm["id"];
            $json = json_encode($infoArray, true);
            echo $json;
            exit;
        }

        //生成订单号（自己的生成订单代码逻辑）

        //释放锁
        $RedisLock->unlock($RedisLock_key);

pay.php

微信小程序接口基本类文档下载链接? 提取码为：wgtp

注意：微信支付需要生成对应的验证文件后才可以正常使用，人多的话，在重更上一篇微信支付配置的文章

<?
        //微信支付
        $qwb_danhao = "wxapp" . $rsDG["danhao"];//wxpc wxmp wxapp
        $qwb_jine = $ShopJine;
        $qwb_jine = $qwb_jine * 100;
        include_once("../wxpay/WxPayPubHelper/WxPayPubHelper.php");
        $jsApi = new JsApi_pub();//实例化微信接口
        $openid = $rm["WXopenid"];//用户openid
        $unifiedOrder = new UnifiedOrder_pub();
        $unifiedOrder->setParameter("openid", $openid);
        $unifiedOrder->setParameter("body", ""); //商品描述
        $unifiedOrder->setParameter("out_trade_no", $qwb_danhao);//支付单号
        $unifiedOrder->setParameter("total_fee", $qwb_jine);//支付金额
        $unifiedOrder->setParameter("notify_url", WxPayConf_pub::NOTIFY_URL);
        $unifiedOrder->setParameter("trade_type", "JSAPI");
        $prepay_id = $unifiedOrder->getPrepayId();

        $jsApi->setPrepayId($prepay_id);
        $jsApiParameters = $jsApi->getParameters();
  
        //合并数组反馈到小程序
        $payArray = json_decode($jsApiParameters, true);
        $infoArray["subjects"] = array_merge($infoArray["subjects"], $payArray);