url 使用 format

third/wx/wx.go

@@ -114,18 +114,15 @@ func PayJSAPI(params *PayParams)(*JSAPIPayConfig, error){
 func GetOAuthParams(paramMap map[string]string)(*WxOAuthConfig, error){
 	config := WxOAuthConfig{}
 	urlstr := wxConfig.RedirectUrl
-	if strings.Index(urlstr, "?") > 0{
-		for k, v := range paramMap{
-			urlstr += fmt.Sprintf("&%s=%s", k, url.QueryEscape(v))
-		}
-	}else{
-		urlstr += "?"
-		for k, v := range paramMap{
-			urlstr += fmt.Sprintf("%s=%s&", k, url.QueryEscape(v))
-		}
+	paramstr := ""
+	for k, v := range paramMap{
+		paramstr += fmt.Sprintf("%s=%s", k, url.QueryEscape(v))
+	}
+	if strings.Index(urlstr, "%s") > 0{
+		urlstr = fmt.Sprintf(urlstr, paramstr)
 	}
 
-	url, err := wxoauth.GetRedirectURL(urlstr, wxConfig.Scope, wxConfig.State)
+	url, err := wxoauth.GetRedirectURL(urlstr, wxConfig.Scope, url.QueryEscape(wxConfig.State))
 	if err != nil{
 		return nil, err
 	}