个人学习代码保存:例8.在存储过程中使用简单的事务处理

存储过程：

ALTER PROCEDURE dbo.myTran

(

@title varchar(50),

@body varchar(500)

)

declare @id int

begin Transaction

insert into guestbook(title,body) values(@title,@body)

set @id=@@identity

insert into guestbook(title,body) values(@id,@body)

if @@error<>0--发生错误

begin

rollback transaction

return 0--执行失败

end

else

begin

commit transaction

return 1--执行成功

end

RETURN

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

标题：<asp:TextBox ID="txtTitle" runat="server"></asp:TextBox>

<br />

内容：<asp:TextBox ID="txtBody" runat="server"></asp:TextBox><br />

<asp:Button ID="Button1" runat="server" Text="提交并执行事务" OnClick="Button1_Click" /></div>

</form>

</body>

</html>

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

string connstr=ConfigurationManager.AppSettings["ConnectionString"].ToString();

SqlConnection con = new SqlConnection(connstr);

if (con.State.Equals(ConnectionState.Closed))

{

con.Open();

}

string procName = "dbo.myTran";

SqlCommand cmd = new SqlCommand(procName,con);

cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add("@title",SqlDbType.VarChar,50);

cmd.Parameters.Add("@body",SqlDbType.VarChar,500);

cmd.Parameters[0].Value = this.txtTitle.Text.Trim();

cmd.Parameters[1].Value = this.txtBody.Text.Trim();

int intResult=Convert.ToInt32(cmd.ExecuteNonQuery());

if (intResult > 0)

{

Response.Write("事务执行成功");

}

else

{

Response.Write("事务执行失败");

}

posted on 2008-01-14 03:38 wangbin 阅读(267) 评论(0) 编辑收藏举报