通过userid获取用户信息名字是乱码

贴一下servlet中的代码：

protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // TODO Auto-generated method stub
        response.setContentType("text/html; charset=utf-8");
        String code = request.getParameter("code");
        String access1 = request.getParameter("access_token");
        a1 a = new a1();
        String url1 = "https://oapi.dingtalk.com/user/getuserinfo?access_token="+access1+"&code="+code;
        String json1 = a.start(url1);
        JSONObject obj1 = JSONObject.fromObject(json1);
        String userid = obj1.getString("userid");
        String url2="https://oapi.dingtalk.com/user/get?access_token="+access1+"&userid="+userid;
        String json2 = a.start(url2);
        JSONObject obj2 = JSONObject.fromObject(json2);
        String name1 = obj2.getString("name");
        String mob1 = obj2.getString("mobile");
        String send="name:"+name1+"mobile:"+mob1;
        response.getWriter().print(send);
    }
里面的name是中文，感觉中文显示是乱码，不知为什么，求大神指教。。。。。。。。