官方文档地址：https://aspnetboilerplate.com/Pages/Documents/Caching

 

1.先set 后取出

需要在控制器中注入ICacheManager，

[Route("api/[controller]/[action]")]
    [ApiController]
    public class WeChatController : TestControllerBase
    { 

        private readonly ICacheManager _cacheManager;
        private IHttpClientFactory _httpClient;
        public WeChatController( IHttpClientFactory httpClient,   ICacheManager cacheManager)
        { 
            this._cacheManager = cacheManager;
            this._httpClient = httpClient;
        } 

        /// <summary>
        /// 获取微信ID
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public async Task<dynamic> GetWechatID(string js_code)
        {

            try
            {
                using (var client = _httpClient.CreateClient())
                {
                    var url = $"https://api.weixin.qq.com/sns/jscode2session?appid=111&secret=11&js_code={js_code}&grant_type=authorization_code";
                    //使用注入的httpclientfactory获取client

                    client.BaseAddress = new Uri(url);
                    //设置请求体中的内容，并以post的方式请求
                    var response = await client.GetAsync(url);
                    //获取请求到数据，并转化为字符串
                    var result = response.Content.ReadAsStringAsync().Result;
                    dynamic aa = JsonConvert.DeserializeObject<dynamic>(result);
                    string session_key = aa.session_key;
                    
                    string openid = aa.openid;
                    string bb = PublicMethods.Encrypt(openid);
                    _cacheManager.GetCache("微信登录").Remove(bb);//先删除之前缓存的数据
                    _cacheManager.GetCache("微信登录").Set(bb, session_key);//可以理解为定义一个表  然后写入数据 以bb为标识 session_key是要保存的数据
                    return Json(new { ok = true, msg = "sucess", data = bb });
                }

            }
            catch (Exception e)
            {
                return Json(new { ok = false, msg = "error", data = e.Message });
            }
        }
         

        /// <summary>
        /// 微信步数解密 
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public ActionResult Decrypt(T微信步数解密 Decrypt)
        {  
            string sessionKey = _cacheManager.GetCache("微信登录").GetOrDefault(Decrypt.wechatid).ToString(); //取出缓存的sessionKey 
            
                return Ok(sessionKey); 
        } 
         
    }

2.先get没有则存入数据

[Route("api/[controller]/[action]")]
    [ApiController]
    public class TablesController : TestControllerBase
    {
        private readonly ICacheManager _cacheManager;
        private string currentUserName;

        public TablesController(ICacheManager cacheManager)
        {
            _cacheManager = cacheManager;

        }
        [NonAction]
        private T医生 Get责任医生By卫生室编号InCache(string _卫生室编号)
        {
            return _cacheManager
                    .GetCache("责任医生")
                    .Get(_卫生室编号, () => Get责任医生By卫生室编号(_卫生室编号)) as T医生;

        }

        [NonAction]
        private T医生 Get责任医生By卫生室编号(string _卫生室编号)
        {
            using (IDbConnection dbConnection = DapperHelper.CreateLocalConnection())
            {
                var sql责任医生 = $@"select top 1 * 
                                    from 表_医生 where 
                                    医生类别='责任医生' and 组织机构编号='{_卫生室编号}'";

                return dbConnection.QueryFirstOrDefault<T医生>(sql责任医生);
            }
        } 

}