复制自己写的网站url,在微信打开 点右上角分析到朋友圈显示缩略图的操作步骤
1.在微信公众平台注册 获得appid和secret
https://mp.weixin.qq.com/
2.利用appid和secret生成ACCESS_TOKEN(有效期只有7200s)
下面是java获得access_token的方式
URL url1 = null;
BufferedReader bf = null;
StringBuffer sb = new StringBuffer();
url1 = new URL("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的secret");
bf = new BufferedReader(new InputStreamReader(url1.openStream(),"utf-8"));
String s = null;
while ((s = bf.readLine()) != null){
sb.append(s);
}
JSONObject jo = new JSONObject().fromObject(sb.toString());
WeChatReturn ww = (WeChatReturn) JSONObject.toBean(jo, WeChatReturn.class);//将json转换成对象
通过url获取到的json格式: