推荐:asp.net编程中实现 MD5 加密现在制作的web系统需要用到加密
依旧选择md5吧(其实我也就用过md5^_^)
找到了两种实现
方案一:
/**////
/// 用md5加密
///
备份SqlServer数据库
核心技术:
using System.Data.SqlClient; using System.IO; string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd="; string SqlStr2 = "Exec sp_helpdb"; string SqlStr1 = "Server=(local);database='" this.DropDownList1.SelectedValue "';Uid=sa;Pwd="; string SqlStr2 = "backup database " this.DropDownList1.SelectedValue " to disk='" this.TextBox1.Text.Trim() ".bak'"; |
1.前台
<table> <tr> <td style="width: 100px"><span style="font-size: 9pt">操 作 数 据 库</span></td> <td><asp:DropDownList ID="DropDownList1" runat="server" Font-Size="9pt" Width="124px"></asp:DropDownList></td> <td style="width: 100px"></td> </tr> <tr> <td style="width: 100px"><span style="font-size: 9pt">备份名称和位置</span></td> <td style="width: 100px"><asp:TextBox ID="TextBox1" runat="server" Font-Size="9pt" Width="117px"></asp:TextBox></td> <td style="width: 100px"><span style="font-size: 9pt; color: #ff3300">(如D:\beifen)</span></td> </tr> <tr> <td colspan="3"><asp:Button ID="Button1" runat="server" Font-Size="9pt" OnClick="Button1_Click" Text="备份数据库" /></td> </tr> </table>
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2.后台
using System.Data.SqlClient; using System.IO;
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd="; string SqlStr2 = "Exec sp_helpdb"; SqlConnection con = new SqlConnection(SqlStr1); con.Open(); SqlCommand com = new SqlCommand(SqlStr2, con); SqlDataReader dr = com.ExecuteReader(); this.DropDownList1.DataSource = dr; this.DropDownList1.DataTextField = "name"; this.DropDownList1.DataBind(); dr.Close(); con.Close(); } } protected void Button1_Click(object sender, EventArgs e) { string SqlStr1 = "Server=(local);database='" this.DropDownList1.SelectedValue "';Uid=sa;Pwd="; string SqlStr2 = "backup database " this.DropDownList1.SelectedValue " to disk='" this.TextBox1.Text.Trim() ".bak'"; SqlConnection con = new SqlConnection(SqlStr1); con.Open(); try { if (File.Exists(this.TextBox1.Text.Trim())) { Response.Write("<script language=javascript>alert('此文件已存在,请从新输入!');location='Default.aspx'</script>"); return; } SqlCommand com = new SqlCommand(SqlStr2, con); com.ExecuteNonQuery(); Response.Write("<script language=javascript>alert('备份数据成功!');location='Default.aspx'</script>"); } catch (Exception error) { Response.Write(error.Message); Response.Write("<script language=javascript>alert('备份数据失败!')</script>"); } finally { con.Close(); } } }
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还原SqlServer
核心技术:
string SqlStr1 = "Server=(local);database='" this.DropDownList1.SelectedValue "';Uid=sa;Pwd="; string SqlStr2 = "use master restore database " dbname " from disk='" path "'"; |
1.前台
<table> <tr> <td style="width: 100px; height: 21px"><span style="font-size: 9pt">操 作 数 据 库</span></td> <td><asp:DropDownList ID="DropDownList1" runat="server" Font-Size="9pt" Width="124px"></asp:DropDownList></td> <td style="width: 100px; height: 21px"></td> </tr> <tr> <td style="width: 100px"><span style="font-size: 9pt">操 作 数 据 库</span></td> <td style="width: 100px"><asp:FileUpload ID="FileUpload1" runat="server" Font-Size="9pt" Width="190px" /></td> <td style="width: 100px"> </td> </tr> <tr> <td colspan="3"><asp:Button ID="Button1" runat="server" Font-Size="9pt" OnClick="Button1_Click" Text="还原数据库" /></td> </tr> </table>
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2.后台
using System.Data.SqlClient; using System.IO;
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd="; string SqlStr2 = "Exec sp_helpdb"; SqlConnection con = new SqlConnection(SqlStr1); con.Open(); SqlCommand com = new SqlCommand(SqlStr2, con); SqlDataReader dr = com.ExecuteReader(); this.DropDownList1.DataSource = dr; this.DropDownList1.DataTextField = "name"; this.DropDownList1.DataBind(); dr.Close(); con.Close(); } }
protected void Button1_Click(object sender, EventArgs e) { string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称 string dbname = this.DropDownList1.SelectedValue; string SqlStr1 = "Server=(local);database='" this.DropDownList1.SelectedValue "';Uid=sa;Pwd="; string SqlStr2 = "use master restore database " dbname " from disk='" path "'"; SqlConnection con = new SqlConnection(SqlStr1); con.Open(); try { SqlCommand com = new SqlCommand(SqlStr2, con); com.ExecuteNonQuery(); Response.Write("<script language=javascript>alert('还原数据成功!');location='Default.aspx'</script>"); } catch (Exception error) { Response.Write(error.Message); Response.Write("<script language=javascript>alert('还原数据失败!')</script>"); } finally { con.Close(); } } }
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分享:ASP.NET常用的三十三种实用代码1. 打开新的窗口并传送参数:
传送参数:
response.write("<script>window.open(’*.aspx?id=" this.DropDownList1.SelectIndex &