注意：小程序订阅消息和小程序类目挂钩，只有设置对应的类目后才能发送相应的公共模板小程序订阅消息

1、类目

1/1 获取微信所有类目信息

https://api.weixin.qq.com/cgi-bin/wxopen/getallcategories?access_token=

1/2 获取当前账号配置的类目

https://api.weixin.qq.com/wxaapi/newtmpl/getcategory?access_token=

1/3 配置类目

https://api.weixin.qq.com/cgi-bin/wxopen/addcategory?access_token=

body ============》
{"categories": [{"first":110,"second":652},{"first": 110,"second": 127},{"first": 110,"second": 125}]}

1/4 删除小程序类目

https://api.weixin.qq.com/cgi-bin/wxopen/deletecategory?access_token=
body=========》
{"first":"99","second":"106"}

2、订阅消息

2/1 获取开启订阅的消息模板

https://api.weixin.qq.com/wxaapi/newtmpl/gettemplate?access_token=

2/2 开启订阅小程序消息模板

https://api.weixin.qq.com/wxaapi/newtmpl/addtemplate?access_token=

body =======》
{
  "tid":"小程序订阅消息模板id",
  "kidList":[1,2,3,4], //消息发送顺序
  "sceneDesc": "余额变动通知"
}

2/3 发送订阅消息

https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=

body================》

{
  "touser": "微信appid",
  "template_id": "订阅消息模板id",
  "page": "",
  "miniprogram_state":"developer",
  "lang":"zh_CN",
  "data": {
      "time1": {
          "value": "2015年01月05日"
      },
      "character_string2": {
          "value": "111"
      },
      "amount3": {
          "value": "999"
      } ,
      "thing4": {
          "value": "广州市新港中路397号11111"
      }
  }
} 

3、请求模板代码

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpasyncclient</artifactId>
</dependency>

    public static String sendHttpPost(String url, String body) throws Exception {
        logger.info("request url:{}", url);
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(url);
        httpPost.addHeader("Content-Type", "application/json;charset=UTF-8");
        httpPost.setHeader("Accept", "application/json");
        httpPost.setEntity(new StringEntity(body, Charsets.UTF_8));
        CloseableHttpResponse response = httpClient.execute(httpPost);
        System.out.println(response.getStatusLine().getStatusCode() + "\n");
        HttpEntity entity = response.getEntity();
        String responseContent = EntityUtils.toString(entity, "UTF-8");
        response.close();
        httpClient.close();
        return responseContent;
    }

    public static String sendHttpGet(String url) throws Exception {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet request = new HttpGet(url);
        request.setHeader("content-type", "application/json");
        CloseableHttpResponse response = httpClient.execute(request);
        HttpEntity entity = response.getEntity();
        String responseContent = EntityUtils.toString(entity, "UTF-8");
        response.close();
        httpClient.close();
        return responseContent;
    }