uni-app - 支付（app支付、小程序支付、h5（微信端）支付）
<p><strong>App支付、小程序支付、h5（微信端）支付</strong></p><p> </p>
<p><strong>APP支付（内置）</strong></p>
<p>appPay.js</p>
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<div class="line number1 index0 alt2"><code class="javascript comments">/**</code></div>
<div class="line number2 index1 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* 5+App支付,仅支持支付宝以及微信支付</code></div>
<div class="line number3 index2 alt2"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number4 index3 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* 支付宝Sdk集成,微信sdk未集成</code></div>
<div class="line number5 index4 alt2"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number6 index5 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* @param : provider(String) ->被支付方</code></div>
<div class="line number7 index6 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* @param : orderInfo(String) ->订单信息</code></div>
<div class="line number8 index7 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* @param : success,fail(Json) ->回调后的json信息</code></div>
<div class="line number9 index8 alt2"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number10 index9 alt1"><code class="javascript spaces"> </code><code class="javascript comments">*/</code></div>
<div class="line number11 index10 alt2"> </div>
<div class="line number12 index11 alt1"> </div>
<div class="line number13 index12 alt2"><code class="javascript plain">const mPay = (provider, orderInfo, success, fail) => (</code></div>
<div class="line number14 index13 alt1"><code class="javascript spaces"> </code><code class="javascript plain">uni.requestPayment({</code></div>
<div class="line number15 index14 alt2"><code class="javascript spaces"> </code><code class="javascript plain">provider,</code></div>
<div class="line number16 index15 alt1"><code class="javascript spaces"> </code><code class="javascript plain">orderInfo, </code><code class="javascript comments">//订单数据</code></div>
<div class="line number17 index16 alt2"><code class="javascript spaces"> </code><code class="javascript plain">success(res) {</code></div>
<div class="line number18 index17 alt1"><code class="javascript spaces"> </code><code class="javascript plain">success(JSON.stringify(res));</code></div>
<div class="line number19 index18 alt2"><code class="javascript spaces"> </code><code class="javascript plain">},</code></div>
<div class="line number20 index19 alt1"><code class="javascript spaces"> </code><code class="javascript plain">fail(err) {</code></div>
<div class="line number21 index20 alt2"><code class="javascript spaces"> </code><code class="javascript plain">fail(JSON.stringify(err));</code></div>
<div class="line number22 index21 alt1"><code class="javascript spaces"> </code><code class="javascript plain">}</code></div>
<div class="line number23 index22 alt2"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number24 index23 alt1"><code class="javascript plain">)</code></div>
<div class="line number25 index24 alt2"> </div>
<div class="line number26 index25 alt1"><code class="javascript keyword">export</code> <code class="javascript keyword">default</code> <code class="javascript plain">mPay;</code></div>
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<p> </p>
<p><strong>微信小程序支付（内置）</strong></p>
<p>mPay.js</p>
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<div class="line number1 index0 alt2"><code class="javascript comments">/**</code></div>
<div class="line number2 index1 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* 微信小程序支付,仅支持微信支付(后续可能集成网页支付宝支付web-view)</code></div>
<div class="line number3 index2 alt2"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number4 index3 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* @param : provider(String) ->付款商家</code></div>
<div class="line number5 index4 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* @param : timeStamp(String) ->时间戳(当前支付时间)</code></div>
<div class="line number6 index5 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* @param : nonceStr(String) ->支付密匙</code></div>
<div class="line number7 index6 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* @param : packages(String) ->支付id</code></div>
<div class="line number8 index7 alt1"><code class="javascript spaces"> </code><code class="javascript comments">* @param : signType(String) ->加密方式(默认MD5)</code></div>
<div class="line number9 index8 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* @param : paySign(String)</code></div>
<div class="line number10 index9 alt1"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number11 index10 alt2"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number12 index11 alt1"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number13 index12 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* 小程序支付调用</code></div>
<div class="line number14 index13 alt1"><code class="javascript spaces"> </code><code class="javascript comments">*</code></div>
<div class="line number15 index14 alt2"><code class="javascript spaces"> </code><code class="javascript comments">* wePay(provider, timeStamp, nonceStr, packages, signType, paySign,res=>{},fail=>{})</code></div>
<div class="line number16 index15 alt1"><code class="javascript spaces"> </code><code class="javascript comments">*/</code></div>
<div class="line number17 index16 alt2"> </div>
<div class="line number18 index17 alt1"><code class="javascript plain">const wePay = (provider, timeStamp, nonceStr, packages, signType, paySign,success,fail) => (</code></div>
<div class="line number19 index18 alt2"><code class="javascript spaces"> </code><code class="javascript plain">uni.requestPayment({</code></div>
<div class="line number20 index19 alt1"><code class="javascript spaces"> </code><code class="javascript plain">provider,</code></div>
<div class="line number21 index20 alt2"><code class="javascript spaces"> </code><code class="javascript plain">timeStamp,</code></div>
<div class="line number22 index21 alt1"><code class="javascript spaces"> </code><code class="javascript plain">nonceStr,</code></div>
<div class="line number23 index22 alt2"><code class="javascript spaces"> </code><code class="javascript keyword">package</code><code class="javascript plain">: packages,</code></div>
<div class="line number24 index23 alt1"><code class="javascript spaces"> </code><code class="javascript plain">signType,</code></div>
<div class="line number25 index24 alt2"><code class="javascript spaces"> </code><code class="javascript plain">paySign,</code></div>
<div class="line number26 index25 alt1"><code class="javascript spaces"> </code><code class="javascript plain">success(res) {</code></div>
<div class="line number27 index26 alt2"><code class="javascript spaces"> </code><code class="javascript plain">success(JSON.stringify(res));</code></div>
<div class="line number28 index27 alt1"><code class="javascript spaces"> </code><code class="javascript plain">},</code></div>
<div class="line number29 index28 alt2"><code class="javascript spaces"> </code><code class="javascript plain">fail(err) {</code></div>
<div class="line number30 index29 alt1"><code class="javascript spaces"> </code><code class="javascript plain">fail(JSON.stringify(err))</code></div>
<div class="line number31 index30 alt2"><code class="javascript spaces"> </code><code class="javascript plain">}</code></div>
<div class="line number32 index31 alt1"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number33 index32 alt2"><code class="javascript plain">)</code></div>
<div class="line number34 index33 alt1"> </div>
<div class="line number35 index34 alt2"> </div>
<div class="line number36 index35 alt1"> </div>
<div class="line number37 index36 alt2"><code class="javascript keyword">export</code> <code class="javascript keyword">default</code> <code class="javascript plain">wePay;</code></div>
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<p><strong>公众号支付（如果使用微信官方weixin-js-sdk，请使用跨端兼容方案）</strong></p>
<p>(需要引入模块：jweixin-module)，详情见yarn以及npm安装</p>
<p>pPay.js</p>
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<div class="line number1 index0 alt2"><code class="javascript comments">/*</code></div>
<div class="line number2 index1 alt1"><code class="javascript spaces"> </code><code class="javascript comments">微信支付方法(uni-app h5)适用</code></div>
<div class="line number3 index2 alt2"><code class="javascript spaces"> </code><code class="javascript comments">获取微信加签信息</code></div>
<div class="line number4 index3 alt1"><code class="javascript spaces"> </code><code class="javascript comments">@param{data}:获取的微信加签</code></div>
<div class="line number5 index4 alt2"><code class="javascript spaces"> </code><code class="javascript comments">@param{res}:成功回调</code></div>
<div class="line number6 index5 alt1"><code class="javascript spaces"> </code><code class="javascript comments">@param{fail}:失败回调</code></div>
<div class="line number7 index6 alt2"><code class="javascript spaces"> </code> </div>
<div class="line number8 index7 alt1"><code class="javascript spaces"> </code><code class="javascript comments">@warn:因为package为严格模式下的保留字，不能用作变量.</code></div>
<div class="line number9 index8 alt2"><code class="javascript spaces"> </code><code class="javascript comments">@use</code></div>
<div class="line number10 index9 alt1"><code class="javascript spaces"> </code> </div>
<div class="line number11 index10 alt2"><code class="javascript spaces"> </code><code class="javascript comments">wPay({</code></div>
<div class="line number12 index11 alt1"><code class="javascript spaces"> </code><code class="javascript comments">appId,</code></div>
<div class="line number13 index12 alt2"><code class="javascript spaces"> </code><code class="javascript comments">timeStamp,</code></div>
<div class="line number14 index13 alt1"><code class="javascript spaces"> </code><code class="javascript comments">nonceStr,</code></div>
<div class="line number15 index14 alt2"><code class="javascript spaces"> </code><code class="javascript comments">signature,</code></div>
<div class="line number16 index15 alt1"><code class="javascript spaces"> </code><code class="javascript comments">package,</code></div>
<div class="line number17 index16 alt2"><code class="javascript spaces"> </code><code class="javascript comments">paySign</code></div>
<div class="line number18 index17 alt1"><code class="javascript spaces"> </code><code class="javascript comments">},res=>{</code></div>
<div class="line number19 index18 alt2"><code class="javascript spaces"> </code><code class="javascript comments">console.log('调用成功!');</code></div>
<div class="line number20 index19 alt1"><code class="javascript spaces"> </code><code class="javascript comments">},fail=>{</code></div>
<div class="line number21 index20 alt2"><code class="javascript spaces"> </code><code class="javascript comments">console.log('调用失败!');</code></div>
<div class="line number22 index21 alt1"><code class="javascript spaces"> </code><code class="javascript comments">})</code></div>
<div class="line number23 index22 alt2"><code class="javascript comments">*/</code></div>
<div class="line number24 index23 alt1"><code class="javascript plain">const wx = require(</code><code class="javascript string">'jweixin-module'</code><code class="javascript plain">);</code></div>
<div class="line number25 index24 alt2"><code class="javascript plain">const wexinPay = (data, cb, errorCb) => {</code></div>
<div class="line number26 index25 alt1"> </div>
<div class="line number27 index26 alt2"><code class="javascript spaces"> </code><code class="javascript keyword">let</code> <code class="javascript plain"> = [data.appId, data.timeStamp, data.nonceStr, data.signature,</code></div>
<div class="line number28 index27 alt1"><code class="javascript spaces"> </code><code class="javascript plain">data.</code><code class="javascript keyword">package</code><code class="javascript plain">, data.paySign</code></div>
<div class="line number29 index28 alt2"><code class="javascript spaces"> </code><code class="javascript plain">];</code></div>
<div class="line number30 index29 alt1"> </div>
<div class="line number31 index30 alt2"><code class="javascript spaces"> </code><code class="javascript plain">wx.config({</code></div>
<div class="line number32 index31 alt1"><code class="javascript spaces"> </code><code class="javascript plain">debug: </code><code class="javascript keyword">false</code><code class="javascript plain">, </code><code class="javascript comments">// 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。</code></div>
<div class="line number33 index32 alt2"><code class="javascript spaces"> </code><code class="javascript plain">appId, </code><code class="javascript comments">// 必填，公众号的唯一标识</code></div>
<div class="line number34 index33 alt1"><code class="javascript spaces"> </code><code class="javascript plain">timestamp, </code><code class="javascript comments">// 必填，生成签名的时间戳</code></div>
<div class="line number35 index34 alt2"><code class="javascript spaces"> </code><code class="javascript plain">nonceStr, </code><code class="javascript comments">// 必填，生成签名的随机串</code></div>
<div class="line number36 index35 alt1"><code class="javascript spaces"> </code><code class="javascript plain">signature, </code><code class="javascript comments">// 必填，签名，见附录1</code></div>
<div class="line number37 index36 alt2"><code class="javascript spaces"> </code><code class="javascript plain">jsApiList: [</code><code class="javascript string">'chooseWXPay'</code><code class="javascript plain">] </code><code class="javascript comments">// 必填，需要使用的JS接口列表，所有JS接口列表见附录2</code></div>
<div class="line number38 index37 alt1"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number39 index38 alt2"> </div>
<div class="line number40 index39 alt1"><code class="javascript spaces"> </code><code class="javascript plain">wx.ready(</code><code class="javascript keyword">function</code><code class="javascript plain">() {</code></div>
<div class="line number41 index40 alt2"><code class="javascript spaces"> </code><code class="javascript plain">wx.chooseWXPay({</code></div>
<div class="line number42 index41 alt1"><code class="javascript spaces"> </code><code class="javascript plain">timestamp, </code><code class="javascript comments">// 支付签名时间戳，注意微信jssdk中的所有使用timestamp字段均为小写。但最新版的支付后台生成签名使用的timeStamp字段名需大写其中的S字符</code></div>
<div class="line number43 index42 alt2"><code class="javascript spaces"> </code><code class="javascript plain">nonceStr, </code><code class="javascript comments">// 支付签名随机串，不长于 32 位</code></div>
<div class="line number44 index43 alt1"><code class="javascript spaces"> </code><code class="javascript string">'package'</code><code class="javascript plain">: packages, </code><code class="javascript comments">// 统一支付接口返回的prepay_id参数值，提交格式如：prepay_id=***）</code></div>
<div class="line number45 index44 alt2"><code class="javascript spaces"> </code><code class="javascript plain">signType: </code><code class="javascript string">'MD5'</code><code class="javascript plain">, </code><code class="javascript comments">// 签名方式，默认为'SHA1'，使用新版支付需传入'MD5'</code></div>
<div class="line number46 index45 alt1"><code class="javascript spaces"> </code><code class="javascript plain">paySign, </code><code class="javascript comments">// 支付签名</code></div>
<div class="line number47 index46 alt2"><code class="javascript spaces"> </code><code class="javascript plain">success(res) {</code></div>
<div class="line number48 index47 alt1"><code class="javascript spaces"> </code><code class="javascript comments">// 支付成功后的回调函数</code></div>
<div class="line number49 index48 alt2"><code class="javascript spaces"> </code><code class="javascript plain">cb(res);</code></div>
<div class="line number50 index49 alt1"><code class="javascript spaces"> </code><code class="javascript plain">},</code></div>
<div class="line number51 index50 alt2"><code class="javascript spaces"> </code><code class="javascript plain">fail(res) {</code></div>
<div class="line number52 index51 alt1"><code class="javascript spaces"> </code><code class="javascript plain">errorCb(res);</code></div>
<div class="line number53 index52 alt2"><code class="javascript spaces"> </code><code class="javascript plain">}</code></div>
<div class="line number54 index53 alt1"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number55 index54 alt2"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number56 index55 alt1"> </div>
<div class="line number57 index56 alt2"><code class="javascript spaces"> </code><code class="javascript plain">wx.error(</code><code class="javascript keyword">function</code><code class="javascript plain">(res) {</code></div>
<div class="line number58 index57 alt1"><code class="javascript spaces"> </code><code class="javascript comments">// config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，也可以在返回的res参数中查看，对于SPA可以在这里更新签名。</code></div>
<div class="line number59 index58 alt2"><code class="javascript spaces"> </code><code class="javascript comments">/*alert("config信息验证失败");*/</code></div>
<div class="line number60 index59 alt1"><code class="javascript spaces"> </code><code class="javascript plain">});</code></div>
<div class="line number61 index60 alt2"><code class="javascript plain">}</code></div>
<div class="line number62 index61 alt1"> </div>
<div class="line number63 index62 alt2"><code class="javascript keyword">export</code> <code class="javascript keyword">default</code> <code class="javascript plain">wexinPay;</code></div>
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<p> </p><br><br>
来源：https://www.cnblogs.com/ydam/p/11405271.html
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