你好，设置自定义菜单跳转url，在按钮中构造网页授权url就可以获取到自成员登入信息了

https://open.work.weixin.qq.com/api/doc/90000/90136/91799

let userinfo_json = await this.session(this.config("app_module") + '_userinfo');
/*获取用户信息*/
if (think.isEmpty(userinfo_json)) {
    /*没有缓存用户信息 重新拉取*/
    let access_token = await this.qywx_access_token();
    let tmp_userinfo_json = await axios("https://qyapi.weixin.qq.com/cgi-bin/user/getuserinfo?access_token=" + access_token + "&code=" + this.get("code"));
    if (tmp_userinfo_json.data.errcode != 0) {
        if (tmp_userinfo_json.data.errcode == "60011") {
            return this.redirect(think.config("err_nopermission"));
        } else if (tmp_userinfo_json.data.errcode == "40029") {
            let cnt = this.get("state");
            if (cnt > 5) return this.fail('抱歉，尝试登录失败次数过多，请企业微信联系信息部检查账号！');
            return this.redirect(this.create_login_url(cnt));
        } else {
            return this.redirect(think.config("err_nologin"));
        }
    }
    if (tmp_userinfo_json.data.OpenId) {
        /*在微信中打开，以前关注过企业公众号，现在没有关注，返回值errcode是0，多了个OpenId字段，以此判断此人没有关注企业中公众号，跳到统一报错平台去*/
        return this.redirect(think.config("err_nologin"));
    }


    let userinfo_json = await axios("https://qyapi.weixin.qq.com/cgi-bin/user/get?access_token=" + access_token + "&userid=" + tmp_userinfo_json.data.UserId);
    userinfo_json = userinfo_json.data;

    if (userinfo_json.errcode != 0) {
        if (userinfo_json.errcode == "60011") {
            return this.redirect(think.config("err_nopermission"));
        }
    }

    /*顺便存储此人部门*/
    let dept_json = await this.qywx_dept(userinfo_json.department[0]);
    if (think.isEmpty(dept_json.department)) {
        return this.redirect(think.config("err_nopermission"));
    } else {
        userinfo_json.department = dept_json.department[0].name;
    }
    await this.session(this.config("app_module") + '_userinfo', userinfo_json);
    return userinfo_json;
} else {
    return userinfo_json;
}