java发送微信小程序模板消息

姓名: {{name01.DATA}}
金额: {{amount01.DATA}}
行程: {{thing01.DATA}}
日期: {{date01.DATA}}

{
  "touser": "OPENID",
  "template_id": "TEMPLATE_ID",
  "page": "index",
  "data": {
      "name01": {
          "value": "某某"
      },
      "amount01": {
          "value": "￥100"
      },
      "thing01": {
          "value": "广州至北京"
      } ,
      "date01": {
          "value": "2018-01-01"
      }
  }
}

/**
 * 获取token
 *
 * @return return
 */
public static JSONObject getAccessToken() {
    String replace = WechatMiniApi.GET_ACCESS_TOKEN.replace("APPID", "你的appid").replace("APPSECRET", "你的appsecret");
    return HttpUtils.messageGet(replace);
}

/**
 * get请求
 * @param url get请求url
 * @return return
 */
public static JSONObject messageGet(String url) {
    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpGet get = new HttpGet(url);
    JSONObject jsonObject = null;

    try {
        HttpResponse response = httpClient.execute(get);
        HttpEntity entity = response.getEntity();
        if (null != entity) {
            String result = EntityUtils.toString(entity);
            jsonObject = JSONObject.fromObject(result);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return jsonObject;
}

/**
 * @param toUser      发送用户
 * @param templateId 模板消息id
 * @param orderNo     订单编号
 * @param payPrice    支付金额
 * @param page        跳转页面
 * @param formId      表单提交场景下，为 submit 事件带上的 formId；支付场景下，为本次支付的 prepay_id
 * @return 返回一个信息
 */
public static JSONObject messageContent(String toUser, String templateId, String orderNo, String payPrice, String page, String formId) {
    JSONObject jsonObject = new JSONObject();
    JSONObject data = new JSONObject();
    JSONObject keyword1 = new JSONObject();
    JSONObject keyword2 = new JSONObject();

    jsonObject.put("touser", toUser);
    jsonObject.put("template_id", templateId);
    jsonObject.put("page", page);
    jsonObject.put("form_id", formId);

    keyword1.put("value",orderNo);
    data.put("character_string1", keyword1);
    keyword2.put("value",payPrice);
    data.put("amount3", keyword2);

    jsonObject.put("data", data);
    jsonObject.put("emphasis_keyword", "keyword1.DATA");
    jsonObject.put("miniprogram_state", "trial");
    jsonObject.put("lang", "zh_CN");
    return jsonObject;
}

/**
 * post请求
 *
 * @param url url
 * @param str 参数
 * @return 返回json对象
 */
public static JSONObject doPost(String url, String str) {
    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpPost post = new HttpPost(url);
    post.setHeader("User-Agent", "vegetable-sdzy");
    post.setHeader("Accept", "application/json");
    post.setHeader("Authorization", sign());
    post.setHeader("Content-Type", "application/json");
    JSONObject jsonObject = null;
    post.setEntity(new StringEntity(str, "UTF-8"));
    try {
        HttpResponse response = httpClient.execute(post);
        HttpEntity entity = response.getEntity();
        if (null != entity) {
            String result = EntityUtils.toString(entity, "UTF-8");
            jsonObject = JSONObject.fromObject(result);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return jsonObject;
}

/**
 * @param jsonObject 需要发送的参数 messageContent
 * @return return
 */
public static JSONObject sendMessage(JSONObject jsonObject) {

    String url = WechatMiniApi.SEND_TEMPATE.replace("ACCESS_TOKEN", "通过上面获取token的url获取到的token");

    JSONObject jsonObject1 = HttpUtils.doPost(url, jsonObject.toString());
    if (Integer.parseInt(jsonObject1.get("errcode").toString()) == 0) {
        log.info("消息发送成功！");
    } else {
        log.error("消息发送失败，失败编码：{},错误信息：{}", jsonObject1.get("errcode"), jsonObject1.get("errmsg"));
    }
    return jsonObject1;
}