asp.net 操作cookie的简单实例_asp.net教程-查字典教程网
asp.net 操作cookie的简单实例
asp.net 操作cookie的简单实例
发布时间:2016-12-29 来源:查字典编辑
摘要:复制代码代码如下:protectedvoidPage_Load(objectsender,EventArgse){if(!IsPostBac...

复制代码 代码如下:

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

HttpCookie cookie = Request.Cookies["loginInfo"];

if (cookie != null)

{

cb_repwd.Checked = true;

tb_loginName.Text = UIHelper.Decrypt(cookie["loginName"]);

tb_pwd.Attributes.Add("value", UIHelper.Decrypt(cookie["pwd"]));

}

else

{

tb_pwd.Attributes.Add("value", "******");

}

}

}

protected void btn_login_Click(object sender, EventArgs e)

{

if (UIHelper.GetString(Session["Code"]).ToUpper()!=this.tb_code.Text.Trim().ToUpper())

{

oJavaScript.Alert("验证码输入不正确");

return;

}

NetUserService NerService = ContextFactory.GetObject<NetUserService>("NetUserService");

string sql = string.Format("from NetUser where LoginName='{0}'", tb_loginName.Text.Trim());

IList<NetUser> list = NerService.Find(sql);

if (list.Count > 0)

{

if (list[0].Status == 2)

{

oJavaScript.Alert("帐号已停用,请联系管理员");

return;

}

}

if (NerService.Login(tb_loginName.Text.Trim(), oSecurity.GetPwdEncrypt(tb_pwd.Text.Trim())))

{

HttpCookie cookie = Request.Cookies["loginInfo"];

if (cb_repwd.Checked)

{

if (cookie == null)

{

HttpCookie cookielogin = new HttpCookie("loginInfo");

setCookies(cookielogin,7);

}

else

{

if (UIHelper.Decrypt(Request.Cookies["loginInfo"]["loginName"]) != tb_loginName.Text.Trim())

{

setCookies(cookie, 7);

}

}

}

else

{

setCookieExpires(cookie);

}

oJavaScript.Redirect("/");

}

else

{

oJavaScript.Alert( "用户名或密码不正确");

}

}

#region cookie

/// <summary>

/// 设置cookie

/// </summary>

/// <param name="cookielogin">HttpCookie cookielogin</param>

/// <param name="Expires">有效期</param>

private void setCookies(HttpCookie cookielogin, int Expires)

{

cookielogin.Values["loginName"] = UIHelper.Encrypt(tb_loginName.Text.Trim());

cookielogin.Values["pwd"] = UIHelper.Encrypt(tb_pwd.Text.Trim());

cookielogin.Expires = DateTime.Now.AddDays(Expires);

Response.AppendCookie(cookielogin);

}

/// <summary>

/// 设置cookie失效

/// </summary>

/// <param name="cookielogin">HttpCookie cookielogin</param>

private void setCookieExpires(HttpCookie cookielogin)

{

if (cookielogin != null)

{

cookielogin.Expires = DateTime.Now.AddDays(-1); ;

Response.AppendCookie(cookielogin);

}

}

#endregion

设置cookie过期其实就是修改cookie,必须重新向客户端发送cookie

Request.Cookies取cookie, response,cookies添加cookie

虽然简单,但是不太了解的还是很容易出错

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