前端之家收集整理的这篇文章主要介绍了
基于nodejs实现微信支付功能，
前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
本文实例为大家分享了nodejs实现微信支付的具体代码，供大家参考，具体内容如下
通过nodejs使用微信支付最重要的就是微信的签名，在这里md5后的字符必须转化为大写
message.ejs
]]>
]]>
二、微信支付model文件代码
wxpay.js
配置文件 appid 等信息
var Q = require("q");
var request = require("request");
var crypto = require('crypto');
var ejs = require('ejs');
var fs = require('fs');
var key = "此处为申请微信支付的API密码";
var messageTpl = fs.readFileSync(__dirname + '/message.ejs','utf-8');
var WxPay = {
getXMLNodeValue: function(node_name,xml) {
var tmp = xml.split("<" + node_name + ">");
var _tmp = tmp[1].split("</" + node_name + ">");
return _tmp[0];
},raw: function(args) {
var keys = Object.keys(args);
keys = keys.sort()
var newArgs = {};
keys.forEach(function(key) {
newArgs[key] = args[key];
});
var string = '';
for (var k in newArgs) {
string += '&' + k + '=' + newArgs[k];
}
string = string.substr(1);
return string;
},paysignjs: function(appid,nonceStr,package,signType,timeStamp) {
var ret = {
appId: appid,nonceStr: nonceStr,package: package,signType: signType,timeStamp: timeStamp
};
var string = this.raw(ret);
string = string + '&key=' + key;
var sign = crypto.createHash('md5').update(string,'utf8').digest('hex');
return sign.toUpperCase();
},paysignjsapi: function(appid,attach,body,mch_id,nonce_str,notify_url,openid,out_trade_no,spbill_create_ip,total_fee,trade_type) {
var ret = {
appid: appid,attach: attach,body: body,mch_id: mch_id,nonce_str: nonce_str,notify_url: notify_url,openid: openid,out_trade_no: out_trade_no,spbill_create_ip: spbill_create_ip,total_fee: total_fee,trade_type: trade_type
};
var string = this.raw(ret);
string = string + '&key=' + key; //key为在微信商户平台(pay.weixin.qq.com)-->账户设置-->API安全-->密钥设置
var crypto = require('crypto');
var sign = crypto.createHash('md5').update(string,// 随机字符串产生函数
createNonceStr: function() {
return Math.random().toString(36).substr(2,15);
},// 时间戳产生函数
createTimeStamp: function() {
return parseInt(new Date().getTime() / 1000) + '';
},
提示签名
错误
order: function(attach,bookingNo,notify_url) {
var deferred = Q.defer();
var appid = config.member_config.appid;
var nonce_str = this.createNonceStr();
var timeStamp = this.createTimeStamp();
var url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
var formData = "
";
formData += "" + appid + ""; //appid
formData += "" + attach + ""; //附加数据
formData += "" + body + "";
formData += "" + mch_id + ""; //商户号
formData += "" + nonce_str + ""; //随机字符串，不长于32位。
formData += "" + notify_url + "";
formData += "" + openid + "";
formData += "" + bookingNo + "";
formData += "61.50.221.43";
formData += "" + total_fee + "";
formData += "JSAPI";
formData += "" + this.paysignjsapi(appid,'61.50.221.43','JSAPI') + "";
formData += "";
var self = this;
request({
url: url,method: 'POST',body: formData
},function(err,response,body) {
if (!err && response.statusCode == 200) {
console.log(body);
var prepay_id = self.getXMLNodeValue('prepay_id',body.toString("utf-8"));
var tmp = prepay_id.split('[');
var tmp1 = tmp[2].split(']');
//签名
var _paySignjs = self.paysignjs(appid,'prepay_id=' + tmp1[0],'MD5',timeStamp);
var args = {
appId: appid,timeStamp: timeStamp,nonceStr: nonce_str,signType: "MD5",package: tmp1[0],paySign: _paySignjs
};
deferred.resolve(args);
} else {
console.log(body);
}
});
return deferred.promise;
},//支付回调
通知
notify: function(obj) {
var output = "";
if (obj.return_code == "SUCCESS") {
var reply = {
return_code: "SUCCESS",return_msg: "OK"
};
} else {
var reply = {
return_code: "FAIL",return_msg: "FAIL"
};
}
output = ejs.render(messageTpl,reply);
return output;
},};
module.exports = WxPay;
三、在express router中调用wxpay
通知地址
wxpay.order(attach,notify_url).then(function(data){
res.render('wxpay',{args: data});
});
});
通知 采用数据流形式读取微信返回的xml数据 此处不在累赘
router.post('/notify',next){
});
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。
原文链接：https://www.f2er.com/nodejs/34590.html
