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 class pay : IHttpHandler
    {
       
        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());//获取H5调起JS API参数
        }

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 ,
      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,
      //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
      
        wx.navigateBack({
          delta: 1, // 回退前 delta(默认为1) 页面
          success: function (res1) {
            wx.showToast({
              title: 支付成功,
              icon: success,
              duration: 2000
            });
          
          },
          fail: function () {
            // fail
            
          },
          complete: function () {
            
          }
        })
      },
      fail: function (res) {
        // fail
      },
      complete: function () {
        // complete
      }
    })
  },