基于senparc实现的微信AccessToken接口全局统一获取

在senparc中实现了AccessToken的全局获取方式，因微信项目涉及跨语言、跨团队，外包方式的合作，需要通过接口方式供合作方调用，现将使用webapi实现的接口分享给大家：

1、自定义一个对外统一的AccessToken

    /// <summary>
        /// 自定义一个对外统一的AccessToken
        /// </summary>
        [Serializable]
        public class MPAccessTokenInfo
        {
            /// <summary>
            /// 获取到的凭证
            /// </summary>
            public string AccessToken { get; set; }

            /// <summary>
            /// 凭证到什么时间过期
            /// </summary>
            public DateTime AccessTokenExpireTime { get; set; }
        }

2、接口方法

//-----------------------------------------------------------------------
// <copyright file="WechatOpenController.cs" company="FenSiShengHuo, Ltd.">
//     Copyright (c) 2018 , All rights reserved.
// </copyright>
//-----------------------------------------------------------------------

using Senparc.Weixin.Open.Containers;
using System;
using System.Web.Http;

namespace DotNet.WeChat.API.Controllers
{
    using DotNet.Utilities;
    using DotNet.WeChat.API.Common;
    using Senparc.Weixin.Containers;
    using Senparc.Weixin.MP.Containers;
    using Senparc.Weixin.Open.ComponentAPIs;

    /// <summary>
    /// WechatOpenController
    ///
    /// 修改纪录
    ///
    /// 2018-07-27 版本：1.0 JiShiYu 创建文件。
    ///
    /// <author>
    ///     <name>JiShiYu</name>
    ///     <date>2018-07-27</date>
    /// </author>
    /// </summary>

    public class WechatController : ApiController
    {
        /// <summary>
        /// 获取微信调用的Token 公众号的方式
        /// </summary>
        /// <returns></returns>
        public JsonResult<MPAccessTokenInfo> GetMPAccessToken()
        {
            JsonResult<MPAccessTokenInfo> result = new JsonResult<MPAccessTokenInfo>();
            result.Status = false;
            result.StatusMessage = "没有获取到";
            try
            {
                var accessTokenResult = AccessTokenContainer.GetAccessTokenResult(GlobalSetting.WeixinAppId);
                var accessTokenBag = BaseContainer<AccessTokenBag>.TryGetItem(GlobalSetting.WeixinAppId);
                MPAccessTokenInfo info = new MPAccessTokenInfo();
                info.AccessToken = accessTokenResult.access_token;
                info.AccessTokenExpireTime = accessTokenBag.AccessTokenExpireTime;
                result.Status = true;
                result.Data = info;
                result.StatusMessage = "成功获取";
            }
            catch (Exception ex)
            {
                NLogHelper.Warn(ex, "WechatOpenController : ApiController GetAccessToken");
                result.Status = false;
                result.StatusMessage = "异常：" + ex.Message;
            }

            return result;
        }

    }
}

3、接口返回值

{
    "Status": true,
    "ResultValue": "",
    "StatusCode": "OK",
    "StatusMessage": "成功获取",
    "RecordCount": 0,
    "Data": {
        "AccessToken": "12_wGwcOStoi9XzRjjCzcwMgubNythtfRGqAn1ntj19I4rR_Rze5vvk5FQyd2ELUmDkFYR47lzkKdnzYzQV1Iqdj0D7tGTguqesXBTHOlLeiUmjMrbGRN_vAG26QFEilArzXBcRMCCcob2_FNr1EEZaAHARRM",
        "AccessTokenExpireTime": "2018-07-29 21:21:05"
    }
}

返回值中AccessTokenExpireTime表示当前的AccessToken在什么时候过期，第三方调用时可以据此设置缓存，避免每次都调用接口获取，减少接口交互次数。