add jsapi payment demo version

2026-02-04 12:52:27 +08:00 · 2017-10-28 00:32:08 +08:00
parent d9134ee361
commit 97752d09a6
4 changed files with 123 additions and 0 deletions
--- a/pay/pay.go
+++ b/pay/pay.go
@@ -0,0 +1,91 @@
+package pay
+
+import (
+	"crypto/md5"	
+	"strings"
+	"github.com/silenceper/wechat/context"
+	"github.com/silenceper/wechat/util"
+)
+
+var payGateway := "https://api.mch.weixin.qq.com/pay/unifiedorder"
+
+// Pay struct extends context
+type Pay struct {
+	*context.Context
+}
+
+// PayParams was NEEDED when request unifiedorder
+type PayParams struct {
+	TotalFee    string
+	CreateIP    string
+	Body        string
+	OutTradeNo  string
+}
+
+type PayResult struct {
+	Success     bool
+	PrePayID    string
+}
+
+//PayRequest
+type payRequest struct {
+	AppID           string `xml:"appid"`
+	MchID           string `xml:"mch_id"`
+	NotifyUrl       string `xml:"notify_url"` //通知地址
+	DeviceInfo      string `xml:"device_info,omitempty"`
+	NonceStr        string `xml:"nonce_str"`
+	Sign            string `xml:"sign"`
+	SignType        string `xml:"sign_type,omitempty"`
+	Body            string `xml:"body"`
+	Detail          string `xml:"detail,omitempty"`
+	Attach          string `xml:"attach,omitempty"` //附加数据
+	OutTradeNo      string `xml:"out_trade_no"` //商户订单号
+	FeeType         string `xml:"fee_type,omitempty"` //标价币种
+	TotalFee        string `xml:"total_fee"` //标价金额
+	SpbillCreateIp  string `xml:"spbill_create_ip"` //终端IP
+	TimeStart       string `xml:"time_start,omitempty"`  //交易起始时间
+	TimeExpire      string `xml:"time_expire,omitempty"`  //交易结束时间
+	GoodsTag        string `xml:"goods_tag,omitempty"`  //订单优惠标记
+	TradeType       string `xml:"trade_type"` //交易类型
+	ProductId       string `xml:"product_id,omitempty"`  //商品ID
+	LimitPay        string `xml:"limit_pay,omitempty"` //
+	OpenID          string `xml:"openid,omitempty"` //用户标识
+	SceneInfo       string `xml:"scene_info,omitempty"` //场景信息	
+}
+
+type payResponse struct {
+	
+}
+
+// NewPay return an instance of Pay package
+func NewPay(ctx *context.Context) *Pay {
+	pay := Pay{Context: ctx}
+	return &pay
+}
+
+// PrePayId will request wechat merchant api and request for a pre payment order id
+func (pcf *Pay) PrePayId(p *PayParams) payResult *PayResult {
+	nonceStr := util.RandomStr(32)
+	pType = "JSAPI"
+	template := "appid=%s&body=%s&mch_id=%s&nonce_str=%s&notify_url=%s&out_trade_no=%s&spbill_create_ip=%s&total_fee=%s&trade_type"
+	stringA := fmt.Sprintf(template, pcf.AppID, p.Body, pcf.MchID, nonceStr, pcf.NotifyUrl, p.OutTradeNo, p.CreateIP, p.TotalFee, pType)
+	signature := md5.Sum(stringA + pcf.PayKey)
+	sign := strings.ToUpper(signature)
+	request := payRequest{
+		AppID: pcf.AppID,
+		MchID: pcf.MchID,
+		NotifyUrl: pcf.NotifyUrl,
+		NonceStr: util.RandomStr(32),
+		Sign: sign,
+		Body: p.Body,
+		OutTradeNo: p.OutTradeNo,
+		TotalFee: p.TotalFee,
+		SpbillCreateIp: params.CreateIP,
+		OpenID: params.OpenID,
+	}
+	ret, err := util.PostXML(payGateway, request)
+	if err != nil {
+
+	}
+	fmt.Println(string(ret))
+}