java创建微信小程序二维码_java 微信sdk登录二维码有效期设置

创建微信小程序二维码有两个接口需要
一个是获取tocken的接口
一个是生成二维码的接口

获取tocken接口

//**********填写你的小程序appid 和 secret
public static String getAccessToken() throws IOException {
   
		//获取tokcen接口
        String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=*********&secret=*********";
        url.trim();
        //创建http请求
        CloseableHttpClient aDefault = HttpClients.createDefault();
        HttpGet httpGet=new HttpGet(url);
        CloseableHttpResponse execute = aDefault.execute(httpGet);
        String toString = EntityUtils.toString(execute.getEntity());
        System.out.println(toString);
        Map map = JSONObject.parseObject(toString, Map.class);
        System.out
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