閲覧総計:3786 (本日:3 昨日:1)
一度入力したデータを自分のPCに保存し、次回起動時に以前入力したデータを
利用できる「クッキー機能」の基本的な操作法を確認した。 09/08/10
(ポイント)
ASP.NET標準のクッキー機能だけだと、日本語が文字化けしてしまう模様。
対策定石としてUrlエンコード、デコードを使うそうな。
開発環境:VWD2005+AJAX1.0+Toolkit + SQL Server2005
サーバ:ASP.NET2.0+AJAX1.0 + SQL Server2005
【機能】TextBoxに入力した値が、次回起動した時に表示される。
【稼動サンプル】
http://www.kuri6005.useiis7.net/4AspNet10/Cookie/Cookie.aspx
最初に起動した時には、何も表示されない。▼
次に起動した時には、前回入力したデータが表示される。▼
【Cookie.aspx】
<%@ Page Language="VB" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> 'Cookie操作法で参考にしたページ 08/10/26 'http://momotchi.net/forums/t/23.aspx Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) '最初のPage_Loadの時だけ実行する処理。すなわちPostBuck時は実行しない。 If Not Page.IsPostBack Then 'Cookie情報の読込 Dim cookie As HttpCookie = Request.Cookies("UserInfo") 'Cookie情報がある場合 If Not (cookie Is Nothing) Then '日本語が文字化けしないようUrlDecodeを利用 06/02/27 'http://social.msdn.microsoft.com/Forums/ja-JP/vsfeedbackja/thread/6ea71b80-54cf-4770-bbf5-0ea764c02f6d TextBox1.Text = Server.UrlDecode(cookie.Values("name")) TextBox2.Text = Server.UrlDecode(cookie.Values("password")) End If End If End Sub Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) 'Cookie情報の書込(更新) Dim cookie As New HttpCookie("UserInfo") '日本語が文字化けしないようUrlEncodeを利用 06/02/27 'http://social.msdn.microsoft.com/Forums/ja-JP/vsfeedbackja/thread/6ea71b80-54cf-4770-bbf5-0ea764c02f6d cookie.Values("name") = Server.UrlEncode(TextBox1.Text) cookie.Values("password") = Server.UrlEncode(TextBox2.Text) cookie.Expires = DateTime.Now.AddMonths(3) Response.Cookies.Add(cookie) End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>クッキー操作の基本</title> </head> <body> <form id="form1" runat="server"> <div> クッキー操作の基本 09/08/10<br /> <br /> 【機能】TextBoxに入力した値が、次回起動した時に表示される。<br /> 名前:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br /> パスワード:<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> <br /> <asp:Button ID="Button1" runat="server" Text="クッキーの更新" OnClick="Button1_Click" /><br /> </div> </form> </body> </html>
【参考にしたページ】
1.Cookie操作法で参考にしたページ 08/10/26
http://momotchi.net/forums/t/23.aspx
2.日本語が文字化けしないようUrlEncodeを利用 06/02/27
http://social.msdn.microsoft.com/Forums/ja-JP/vsfeedbackja/thread/6ea71b80-54cf-4770-bbf5-0ea764c02f6d
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