private void urlrewrite_name_validate(HttpContext context) { string new_name = MXRequest.GetString("param"); string old_name = MXRequest.GetString("old_name"); if (string.IsNullOrEmpty(new_name)) { context.Response.Write("{ \"info\":\"名称不可为空!\", \"status\":\"n\" }"); return; } if (new_name.ToLower() == old_name.ToLower()) { context.Response.Write("{ \"info\":\"该名称可使用\", \"status\":\"y\" }"); return; } BLL.url_rewrite bll = new BLL.url_rewrite(); if (bll.Exists(new_name)) { context.Response.Write("{ \"info\":\"该名称已被使用,请更换!\", \"status\":\"n\" }"); return; } context.Response.Write("{ \"info\":\"该名称可使用\", \"status\":\"y\" }"); return; }