C# · 12月 19, 2021

微信小程序支付之c#后台实现方法

微信小程序支付c#后台实现

今天为大家带来比较简单的支付后台处理

首先下载官方的c#模板(WxPayAPI),将模板(WxPayAPI)添加到服务器上,然后在WxPayAPI项目目录中添加两个“一般处理程序” (改名为GetOpenid.ashx、pay.ashx)

之后打开business目录下的JsApiPay.cs,在JsApiPay.cs中修改如下两处

然后在GetOpenid.ashx中加入代码如下:

public void ProcessRequest(HttpContext context) { string code = HttpContext.Current.Request.QueryString[“code”]; WxPayData data = new WxPayData(); data.SetValue(“appid”,WxPayCon<a href=”https://www.jb51.cc/tag/fig/” target=”_blank” class=”keywords”>fig</a>.APPID); data.SetValue(“secret”,WxPayCon<a href=”https://www.jb51.cc/tag/fig/” target=”_blank” class=”keywords”>fig</a>.APPSECRET); data.SetValue(“code”,code); data.SetValue(“grant_type”,”authorization_code”); string url = “https://api.weixin.qq.com/sns/oauth2/access_token?” + data.ToUrl(); //请求url以<a href=”https://www.jb51.cc/tag/huoqu/” target=”_blank” class=”keywords”>获取</a>数据 string result = HttpService.Get(url); Log.Debug(this.GetType().ToString(),”GetOpenidAndAccessTokenFromCode response : ” + result); //保存access_token,用于收货地址<a href=”https://www.jb51.cc/tag/huoqu/” target=”_blank” class=”keywords”>获取</a> JsonData jd = JsonMapper.ToObject(result); //access_token = (string)jd[“access_token”]; //<a href=”https://www.jb51.cc/tag/huoqu/” target=”_blank” class=”keywords”>获取</a><a href=”https://www.jb51.cc/tag/yonghu/” target=”_blank” class=”keywords”>用户</a>openid openid = (string)jd[“openid”]; context.Response.Write(openid);//<a href=”https://www.jb51.cc/tag/huoqu/” target=”_blank” class=”keywords”>获取</a>H5调起JS API参数 }</pre>

在pay.ashx中加入代码如下:

public void ProcessRequest(HttpContext context) { context.Response.ContentType = “text/plain”; string openid = HttpContext.Current.Request.QueryString[“openid”]; string total_fee = HttpContext.Current.Request.QueryString[“total_fee”]; JsApiPay jsApiPay = new JsApiPay(context); jsApiPay.openid = openid; jsApiPay.total_fee = int.Parse(total_fee); WxPayData unifiedOrderResult = jsApiPay.GetUnifiedOrderResult(); context.Response.Write(jsApiPay.GetJsApiParameters());//<a href=”https://www.jb51.cc/tag/huoqu/” target=”_blank” class=”keywords”>获取</a>H5调起JS API参数 }</pre>

然后发布就可以了(记得将相关的信息appid等填好)

微信小程序的代码如下:

wxpay: function () {
var that = this
//登陆获取code
wx.login({
success: function (res) {
console.log(res.code)
//获取openid
that.getOpenId(res.code)
}
});
},getOpenId: function (code) {
//获取openID

var that = this;
wx.request({
url: ‘http://*******/WxPayAPI/GetOpenid.ashx?code=’+ code,//改为自己的域名
data: {},// method: ‘GET’,success: function (res) {
var a12=res.data
that.generateOrder(a12)
//console.log(a12)
},fail: function () {
// fail
},complete: function () {
// complete
}
})
},/生成商户订单 */
generateOrder: function (openid) {
var that = this;
//console.log(openid)
//统一支付
wx.request({
url: ‘http://*****/WxPayAPI/pay.ashx’,//改为自己的域名
//method: ‘GET’,data: {
total_fee: 1,//1分
openid: openid,},header: {
‘content-type’: ‘application/json’
},success: function (res) {

var pay = res.data //发起支付 var timeStamp = pay.timeStamp; var packages = pay.package; var paySign = pay.paySign; var nonceStr = pay.nonceStr; var param = { “timeStamp”: timeStamp,”package”: packages,”paySign”: paySign,”signType”: “MD5″,”nonceStr”: nonceStr }; that.pay(param)

},})
},/ 支付 /
pay: function (param) {

wx.requestPayment({
timeStamp: param.timeStamp,nonceStr: param.nonceStr,package: param.package,signType: param.signType,paySign: param.paySign,success: function (res) {
// success

<a href=”https://www.jb51.cc/tag/wxnavigateBack/” target=”_blank” class=”keywords”>wx.navigateBack</a>({ delta: 1,// 回退前 delta(<a href=”https://www.jb51.cc/tag/mo/” target=”_blank” class=”keywords”>默</a>认为1) <a href=”https://www.jb51.cc/tag/yemian/” target=”_blank” class=”keywords”>页面</a> success: function (res1) { wx.showToast({ title: ‘支付成功’,icon: ‘success’,duration: 2000 }); },fail: function () { // fail },complete: function () { } })

},fail: function (res) {
// fail
},

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