C#實(shí)現(xiàn)的微信網(wǎng)頁(yè)授權(quán)操作邏輯封裝示例

來(lái)源：本站原創(chuàng)|時(shí)間：2020-01-10|欄目：C#教程|點(diǎn)擊：次

本文實(shí)例講述了C#實(shí)現(xiàn)的微信網(wǎng)頁(yè)授權(quán)操作邏輯封裝。分享給大家供大家參考，具體如下：

一、微信網(wǎng)頁(yè)授權(quán)登錄

前提：

1.已經(jīng)獲取的接口權(quán)限，如果是測(cè)試賬號(hào)就已經(jīng)有權(quán)限了

2.配置接口的授權(quán)域名

更多說(shuō)明可以參考方倍工作室：http://www.cnblogs.com/txw1958/p/weixin71-oauth20.html

或者官網(wǎng)API：http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html

步驟：

1.用戶(hù)同意授權(quán)，獲取code

2.根據(jù)code 獲取access_token及當(dāng)前操作用戶(hù)的openid、unionid

3.根據(jù)openid獲取用戶(hù)基本信息(如果需要的話(huà))

注：如果想在網(wǎng)站使用掃一掃，授權(quán)登錄，可以講 _oauth.GetCodeUrl() 授權(quán)地址生成二維碼來(lái)使用

C#封裝微信網(wǎng)頁(yè)授權(quán)登錄使用實(shí)例：

string appid = "wx145b4a8fd07b24e8";
string appsecrect = "fe6951dcb99772411c42f724b1336065";
string redirect_url = "配置域名下的回調(diào)地址";
OAuthManage _oauth = null;
/// <summary>
///控制器構(gòu)造函數(shù)
/// </summary>
public UserController()
{
  _oauth = new OAuthManage(appid, appsecrect, redirect_url);
}
/// <summary>
/// 授權(quán)登錄
/// </summary>
/// <returns></returns>
public ActionResult AuthLogin()
{
  ViewBag.url = _oauth.GetCodeUrl();
  return View();
}
/// <summary>
/// 回調(diào)處理
/// </summary>
/// <returns></returns>
public ActionResult OAuthHandle()
{
  string result = "";
  //注冊(cè)事件處理
  _oauth.OnError = (e) =>
  {
    string msg = "";
    Exception inner = e;
    while (inner != null)
    {
      msg += inner.Message;
      inner = inner.InnerException;
    }
    result = msg;
    LogOperate.Write(msg);
  };
  _oauth.OnGetTokenSuccess = (token) =>
  {
    result += "<br/>";
    result += token.ToJsonString();
  };
  _oauth.OnGetUserInfoSuccess = (user) =>
  {
    result += "<br/>";
    result += user.ToJsonString();
  };
  //第二步
  _oauth.GetAccess_Token();
  //第三步
  _oauth.GetUserInfo();
  //顯示結(jié)果
  ViewBag.msg = result;
  return View();
}

封裝代碼類(lèi)定義：

namespace WXPackage
{
  /// <summary>
  /// 網(wǎng)頁(yè)授權(quán)邏輯處理，
  /// 處理三步操作，處理成功，返回用戶(hù)基本信息
  /// </summary>
  public class OAuthManage
  {
    #region 基本信息定義
    /// <summary>
    /// 公眾號(hào)的唯一標(biāo)識(shí)
    /// </summary>
    private string appid;
    /// <summary>
    /// 公眾號(hào)的appsecret
    /// </summary>
    private string secret;
    /// <summary>
    /// 回調(diào)url地址
    /// </summary>
    private string redirect_uri;
    /// <summary>
    /// 獲取微信用戶(hù)基本信息使用snsapi_userinfo模式
    /// 如果使用靜默授權(quán)，無(wú)法獲取用戶(hù)基本信息但可以獲取到openid
    /// </summary>
    private string scope;
    public OAuthManage(string appid, string appsecret, string redirect_uri, bool IsUserInfo = true)
    {
      this.appid = appid;
      this.secret = appsecret;
      this.redirect_uri = redirect_uri;
      this.scope = IsUserInfo ? "snsapi_userinfo" : "snsapi_base";
    }
    #endregion
    #region 請(qǐng)求過(guò)程信息
    /// <summary>
    /// 第一步獲取到的Code 值
    /// </summary>
    public string Code { get; set; }
    /// <summary>
    /// 第二步獲取到的access_token及相關(guān)數(shù)據(jù)
    /// </summary>
    public OAuthAccess_Token TokenData = null;
    #endregion
    #region 事件定義
    /// <summary>
    /// 當(dāng)處理出現(xiàn)異常時(shí)，觸發(fā)
    /// </summary>
    public Action<Exception> OnError = null;
    /// <summary>
    /// 當(dāng)獲取AccessToken成功是觸發(fā)
    /// </summary>
    public Action<OAuthAccess_Token> OnGetTokenSuccess = null;
    /// <summary>
    /// 當(dāng)獲取用戶(hù)信息成功時(shí)觸發(fā)
    /// </summary>
    public Action<OAuthUser> OnGetUserInfoSuccess = null;
    #endregion
    #region 第二步,回調(diào)處理
    /// <summary>
    /// 第二步，通過(guò)code換取網(wǎng)頁(yè)授權(quán)access_token
    /// </summary>
    public void GetAccess_Token()
    {
      try
      {
        //1.處理跳轉(zhuǎn)
        this.Code = ReqHelper.GetString("code");
        if (string.IsNullOrEmpty(this.Code))
          throw new Exception("獲取code參數(shù)失敗或用戶(hù)禁止授權(quán)獲取基本信息");
        //1.發(fā)送獲取access_token請(qǐng)求
        string url = GetAccess_TokenUrl();
        string result = NetHelper.Get(url);
        //2.解析相應(yīng)結(jié)果
        TokenData = JsonConvert.DeserializeObject<OAuthAccess_Token>(result);
        if (TokenData == null)
          throw new Exception("反序列化結(jié)果失敗，返回內(nèi)容為：" + result);
        //3.獲取成功
        if (OnGetTokenSuccess != null)
          OnGetTokenSuccess(TokenData);
      }
      catch (Exception ex)
      {
        Error("第二步，通過(guò)code換取網(wǎng)頁(yè)授權(quán)access_token異常", ex);
      }
    }
    /// <summary>
    /// 刷新當(dāng)前access_token
    /// </summary>
    public OAuthAccess_Token RefreshAccess_Token()
    {
      try
      {
        //1.發(fā)送請(qǐng)求
        string url = GetReferesh_TokenUrl();
        string result = NetHelper.Get(url);
        //2.解析結(jié)果
        OAuthAccess_Token token = JsonConvert.DeserializeObject<OAuthAccess_Token>(result);
        if (token == null)
          throw new Exception("反序列化結(jié)果失敗，返回內(nèi)容：" + result);
        return token;
      }
      catch (Exception ex)
      {
        Error("刷新當(dāng)前access_token失敗", ex);
        return null;
      }
    }
    #endregion
    #region 第三步，獲取用戶(hù)基本信息
    /// <summary>
    /// 第三步，獲取基本信息
    /// </summary>
    public void GetUserInfo()
    {
      try
      {
        //1.發(fā)送get請(qǐng)求
        string url = GetUserInfoUrl();
        string result = NetHelper.Get(url);
        //2.解析結(jié)果
        OAuthUser user = JsonConvert.DeserializeObject<OAuthUser>(result);
        if (user == null)
          throw new Exception("反序列化結(jié)果失敗，返回內(nèi)容：" + result);
        //3.獲取成功
        if (OnGetUserInfoSuccess != null)
          OnGetUserInfoSuccess(user);
      }
      catch (Exception ex)
      {
        Error("第三步、獲取用戶(hù)基本信息異常", ex);
      }
    }
    #endregion
    #region 靜態(tài)方法
    /// <summary>
    /// 驗(yàn)證授權(quán)憑證是否有效
    /// </summary>
    /// <param name="access_token">access_token</param>
    /// <param name="openid">用戶(hù)針對(duì)當(dāng)前公眾號(hào)的openid</param>
    /// <returns></returns>
    public static bool CheckWebAccess_Token(string access_token, string openid)
    {
      try
      {
        string url = string.Format("https://api.weixin.qq.com/sns/auth?access_token={0}&openid={1}",
       access_token,
       openid);
        string result = NetHelper.Get(url);
        JObject obj = JObject.Parse(result);
        int errcode = (int)obj["errcode"];
        return errcode == 0;
      }
      catch (Exception ex)
      {
        throw new Exception("，" + ex.Message);
      }
    }
    #endregion
    #region 獲取請(qǐng)求連接
    /// <summary>
    /// 獲取Code的url 地址
    /// </summary>
    /// <returns></returns>
    public string GetCodeUrl()
    {
      string url = string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope={2}&state=STATE#wechat_redirect",
        this.appid,
        SecurityHelper.UrlEncode(this.redirect_uri),
        this.scope);
      return url;
    }
    /// <summary>
    /// 獲取access_token的url地址
    /// </summary>
    /// <returns></returns>
    private string GetAccess_TokenUrl()
    {
      string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code",
        this.appid,
        this.secret,
        this.Code);
      return url;
    }
    /// <summary>
    /// 獲取刷新AccessToke的地址
    /// </summary>
    /// <returns></returns>
    private string GetReferesh_TokenUrl()
    {
      string url = string.Format("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid={0}&grant_type=refresh_token&refresh_token={1}",
        this.appid,
        this.TokenData.refresh_token
        );
      return url;
    }
    /// <summary>
    /// 獲取用戶(hù)基本信息地址
    /// </summary>
    /// <returns></returns>
    private string GetUserInfoUrl()
    {
      string url = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN",
        this.TokenData.access_token,
        this.TokenData.openid);
      return url;
    }
    #endregion
    private void Error(string msg, Exception inner)
    {
      if (this.OnError != null)
      {
        this.OnError(new Exception(msg, inner));
      }
    }
  }
  /// <summary>
  /// 授權(quán)之后獲取用戶(hù)基本信息
  /// </summary>
  public class OAuthUser
  {
    public string openid { get; set; }
    public string nickname { get; set; }
    public int sex { get; set; }
    public string province { get; set; }
    public string city { get; set; }
    public string country { get; set; }
    public string headimgurl { get; set; }
    /// <summary>
    /// 用戶(hù)特權(quán)信息，json 數(shù)組
    /// </summary>
    public JArray privilege { get; set; }
    public string unionid { get; set; }
  }
  /// <summary>
  /// 獲取Access_Token或者刷新返回的數(shù)據(jù)對(duì)象
  /// </summary>
  public class OAuthAccess_Token
  {
    public string access_token { get; set; }
    public int expires_in { get; set; }
    public string refresh_token { get; set; }
    /// <summary>
    /// 用戶(hù)針對(duì)當(dāng)前公眾號(hào)的唯一標(biāo)識(shí)
    /// 關(guān)注后會(huì)產(chǎn)生，返回公眾號(hào)下頁(yè)面也會(huì)產(chǎn)生
    /// </summary>
    public string openid { get; set; }
    public string scope { get; set; }
    /// <summary>
    /// 當(dāng)前用戶(hù)的unionid，只有在用戶(hù)將公眾號(hào)綁定到微信開(kāi)放平臺(tái)帳號(hào)后
    /// </summary>
    public string unionid { get; set; }
  }
}

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