code: public static TemplateMessageResult messageTemplateSend(String access_token, TemplateMessage templateMessage) {
          String messageJson = JsonUtil.toJSONString(templateMessage);
          HttpUriRequest httpUriRequest = RequestBuilder.post()
                  .setHeader(jsonHeader)
                  .setUri(BASE_URI + "/cgi-bin/message/template/send")
                  .addParameter(PARAM_ACCESS_TOKEN, API.accessToken(access_token))
                  .setEntity(new StringEntity(messageJson, Charset.forName("utf-8")))
                  .build();
          return LocalHttpClient.executeJsonResult(httpUriRequest, TemplateMessageResult.class);
      }
docs: 模板消息发送
  <p>
  <a href="https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1433751277">微信模板消息文档</a>
  
  @param access_token    access_token
  @param templateMessage templateMessage
  @return TemplateMessageResult