新增微信公众平台对接，增加缓存。修改入参

api/controller/v1/weChat.go

@@ -20,7 +20,7 @@ func (r *WeChat) GetScheme(c *gin.Context) {
 	WeChatRequest := v1.WeChatRequest{}
 	req := WeChatRequest.GetScheme
 
-	if err := c.ShouldBind(&req); err != nil {
+	if err := c.ShouldBindJSON(&req); err != nil {
 		responses.FailWithMessage(err.Error(), c)
 		return
 	}