修改

api/index.go

@@ -41,11 +41,11 @@ func Pay(c *gin.Context) (utils.Data, error) {
 
 	var param = alipay.TradeWapPay{}
 	param.OutTradeNo = order.OrderNo
-	param.TotalAmount = strconv.FormatFloat(order.PayAmount, 'E', -1, 64)
+	param.TotalAmount = strconv.FormatFloat(order.PayAmount, 'f', -1, 64)
 	param.Subject = order.Subject
-	// global.Config.Server.Domain
+	token := utils.Md5(order.OrderNo + strconv.Itoa(order.UserId) + strconv.FormatInt(time.Now().Unix(), 10))
 	param.NotifyURL = global.Config.Server.Domain + "/notify"
-	param.ReturnURL = global.Config.Server.Domain + "/return"
+	param.ReturnURL = global.Config.Server.Domain + "/return?token=" + token
 	client, err := alipay.New(global.Config.Alipay.AppId, global.Config.Alipay.PrivateKey, true)
 	if err != nil {
 		return nil, errors.NewBusinessError("初始化支付宝失败")
@@ -57,12 +57,11 @@ func Pay(c *gin.Context) (utils.Data, error) {
 
 	fmt.Println(result.String())
 	order.PayUrl = result.String()
-	// utils.Md5(order.OrderNo + strconv.Itoa(order.UserId) + strconv.FormatInt(time.Now().Unix(), 10))
-	order.Token = order.OrderNo
-	global.DB.Save(order)
+	order.Token = token
+	global.DB.Save(&order)
 
 	data := utils.Data{
-		"pay_url": global.Config.Server.Domain + "/payment/" + order.OrderNo,
+		"pay_url": global.Config.Server.Domain + "/payment?token=" + token,
 	}
 	return data, nil
 }
@@ -111,6 +110,9 @@ func Notify(c *gin.Context) {
 		log.Printf("初始化支付宝失败:%v", err)
 		return
 	}
+
+	client.LoadAliPayPublicKey(global.Config.Alipay.AliPublicKey)
+
 	notification, err := client.DecodeNotification(c.Request.Form)
 	if err != nil {
 		log.Printf("解析异步通知发生错误:%v", err)
@@ -187,39 +189,29 @@ func postToSdk(url string, data map[string]interface{}) string {
 }
 
 func Return(c *gin.Context) {
-	var req request.ReturnRequest
-	// 将路由参数绑定到结构体中
-	if err := c.ShouldBindUri(&req); err != nil {
-		c.Writer.WriteHeader(http.StatusOK)
-		c.Writer.Write([]byte("参数错误"))
-		return
-	}
+	token := c.Query("token")
 	order := model.Order{}
-	tx := global.DB.Where("order_no = ?", req.OrderNo).First(&order)
+	tx := global.DB.Where("token = ?", token).First(&order)
 	if tx.Error != nil {
 		c.Writer.WriteHeader(http.StatusOK)
 		c.Writer.Write([]byte("订单不存在"))
 		return
 	}
 
-	c.Redirect(http.StatusFound, order.ReturnUrl)
+	c.Redirect(http.StatusMovedPermanently, order.ReturnUrl)
 }
 
 func Payment(c *gin.Context) {
-	var req request.PaymentRequest
-	// 将路由参数绑定到结构体中
-	if err := c.ShouldBindUri(&req); err != nil {
-		c.Writer.WriteHeader(http.StatusOK)
-		c.Writer.Write([]byte("参数错误"))
-		return
-	}
+	token := c.Query("token")
 	order := model.Order{}
-	tx := global.DB.Where("token = ?", req.Token).First(&order)
+	tx := global.DB.Where("token = ?", token).First(&order)
+	fmt.Println(tx)
 	if tx.Error != nil {
+		fmt.Println(tx.Error)
 		c.Writer.WriteHeader(http.StatusOK)
 		c.Writer.Write([]byte("订单不存在"))
 		return
 	}
 
-	c.Redirect(http.StatusFound, order.PayUrl)
+	c.Redirect(http.StatusMovedPermanently, order.PayUrl)
 }

config.yaml

@@ -4,6 +4,7 @@ server:
 alipay:
   app-id: "2021004129619376"
   private-key: "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"
+  ali-public-key: "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhgLRPY+3aSGRvlcivmcPnSSL9v3BXSea3uDOZpIpzydHxQ16c/A2m6kVh9LxlJJngXldOkO2Q4VS32RufZntc9fkjiiuUxDBlFPKl5x72eiQVoBX4yM7j0gtBlwQFezsIPD0SRC/uxj75+MtjDUupAQLA4gB4zgSDmWWYAIGQlgXXAQExr5k7P1dXrXJMP9SpIYn3Uaug5ifqxanoiDCmMp/sMFasjlVBDIpLOZuKgBwcX3d2FmhRdWIWR5UVy3IbtWuqTJ8vqH8j6Y2jVFLxBA7+woYc0s7npZ0kTa0yGXFw/9LGinSGshGUCBjuAoi67cW6YvODjYFHuGqsrXZvwIDAQAB"
 database:
   host: "47.98.244.18"
   port: "3306"

config/alipay.go

@@ -3,4 +3,5 @@ package config
 type Alipay struct {
 	AppId        string `yaml:"app-id"`
 	PrivateKey   string `yaml:"private-key"`
+	AliPublicKey string `yaml:"ali-public-key"`
 }

main.go

@@ -17,9 +17,9 @@ func main() {
 	r.GET("/ping", utils.BuildJsonHandler(api.Index))
 	r.GET("/error", utils.BuildJsonHandler(api.Error))
 	r.POST("/pay", utils.BuildJsonHandler(api.Pay))
-	r.POST("/payment/:token", utils.BuildHandler(api.Payment))
+	r.GET("/payment", utils.BuildHandler(api.Payment))
 	r.POST("/notify", utils.BuildHandler(api.Notify))
-	r.GET("/return/:order_no", utils.BuildHandler(api.Return))
+	r.GET("/return", utils.BuildHandler(api.Return))
 	r.GET("/test-post", utils.BuildJsonHandler(api.TestPost))
 	err := r.Run(":" + global.Config.Server.Port) // listen and serve on 0.0.0.0:8080
 	panic(err)

utils/str.go

@@ -2,11 +2,13 @@ package utils
 
 import (
 	"crypto/md5"
-	"io"
+	"encoding/hex"
 )
 
 func Md5(str string) string {
-	h := md5.New()
-	_, _ = io.WriteString(h, str)
-	return string(h.Sum(nil))
+	hash := md5.New()
+	hash.Write([]byte(str))
+	bytes := hash.Sum(nil)
+	md5Str := hex.EncodeToString(bytes)
+	return md5Str
 }