"".equals(appSecret)) {
logger.info("缺少必要参数");
renderJson(new OutRoot().setCode("100").setMsg(SYS.PARAMETER_FAIL));
} else {
String url = "https://api.weixin.qq.com/sns/jscode2session";
String httpUrl = url + "?appid=" + appId + "&secret=" + appSecret + "&js_code=" + jsCode
+ "&grant_type=authorization_code";
String ret = HttpRequest.sendGetRequest(httpUrl);
logger.info("微信返回的结果 {}", ret);
if (ret == null
关键词：java完成微信小程序登录态维护