在阅读时如有问题或者建议，欢迎指出和提问，我也是初学者.........
前台代码：
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <div align="center"> <h1>用户登录页面</h1> <form id="form1" runat="server"> <p> <asp:Label ID="lbusername" runat="server">学号：</asp:Label> <asp:TextBox ID="txtNum" runat="server"></asp:TextBox> </p> <p> <asp:Label ID="lblName" runat="server">姓名：</asp:Label> <asp:TextBox ID="txtName" runat="server"></asp:TextBox> </p> <p> <asp:Label ID="lbpsw" runat="server">密 码：</asp:Label> <asp:TextBox ID="txtpwd" runat="server" TextMode="Password"></asp:TextBox> </p> <p> <asp:Label ID="lblText" runat="server" Text=""></asp:Label></p> <p> <asp:Button ID="btnRegister" runat="server" Text="注册" onclick="btnRegister_Click" /> </p> </form> </div> </body> </html>
后台代码：
using System; using System.Data.SqlClient; using System.Data; using System.Configuration; using System.Drawing; using System.Text; using System.Security.Cryptography; namespace ado.netDemo1 { public partial class register : System.Web.UI.Page { SqlConnection connStr = new SqlConnection(ConfigurationManager.ConnectionStrings["connStr"].ToString()); string sql; protected void Page_Load(object sender, EventArgs e) { } protected void btnRegister_Click(object sender, EventArgs e) { if (txtNum.Text.Trim() == "" || txtName.Text.Trim() == "" || txtpwd.Text.Trim() == "") { lblText.ForeColor = Color.Red; lblText.Text = "请将个人信息填写完整！"; } else if (txtNum.Text.Trim() == "" && txtName.Text.Trim() == "" && txtpwd.Text.Trim() == "") { lblText.ForeColor = Color.Red; lblText.Text = "请将个人信息填写完整！"; } else { //加密处理注册Password string hashedpwd=Encrypt(txtpwd.Text.Trim()); sql = "insert into tb_Students(SID,Name,Password)Values('" + txtNum.Text.Trim() + "','" + txtName.Text.Trim() + "','" + hashedpwd + "')"; connStr.Open(); SqlCommand cmd = new SqlCommand(sql, connStr); int i = cmd.ExecuteNonQuery(); if (i == 1) { lblText.ForeColor = Color.Red; lblText.Text = "注册成功！"; Response.Write(@"<script>window.alert('请到登陆界面登陆！');window.location='Login.aspx'</script>"); } } } public static string Encrypt(string cleanString) { Byte[] clearBytes = new UnicodeEncoding().GetBytes(cleanString); Byte[] hashedBytes = ((HashAlgorithm)CryptoConfig.CreateFromName("MD5")).ComputeHash(clearBytes); return BitConverter.ToString(hashedBytes); } } }
界面截图：
