偶做的用户管理系统

网络整理 - 07-26

偶做的用户管理系统
因为代码比较多,只贴一下,添加用户的代码,我把表示层和业务逻辑层分开了,单独建立了一个Cls_user的类来对用户集中进行管理,里面包括了对用户的添加,删除,修改的方法,以及访问用户的名称,密码,权限等的字段,这样分开做也符合多层架构的原则,我没有单独做dal层,因为我部打算以后换数据库.
在前台的窗体中有几个下拉列表控件,我是分别用散列表和DataTable来做数据动态绑定的,也算是一个小技巧吧.
在业务逻辑的类里我用使用了方法的输出参数,大家可以顺便看一下输出参数怎么用.

先贴前台的显示代码?注意dropdownlist控件的DataTextField和DataValueField属性

add_user.aspx
<%@ Page language="c#" Codebehind="adduser.aspx.cs" AutoEventWireup="false" Inherits="oa.admin.users.adduser" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>adduser</title>
<meta content="False" name="vs_snapToGrid">
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="Javascript" name="vs_defaultClientscript">
<meta content="" name="vs_targetSchema">
<LINK href="../../style/wawa.css" type="text/css" rel="stylesheet">
</HEAD>
<body MS_POSITIONING="FlowLayout">
<form id="Form1" method="post" runat="server">
<TABLE id="Table1" cellSpacing="1" cellPadding="1" width="500" border="1">
<TR>
<TD align="left" colSpan="3">
添加用户
</TD>
</TR>
<TR>
<TD style="HEIGHT: 16px">
用户名：
</TD>
<TD style="HEIGHT: 16px" align="left">
<asp:textbox id="User_Name" runat="server"></asp:textbox>
</TD>
<TD style="HEIGHT: 16px">
<asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" ControlToValidate="User_Name" ErrorMessage="用户名不能为空"></asp:requiredfieldvalidator>

</TD>
</TR>
<TR>
<TD>
密码：
</TD>
<TD align="left">
<asp:textbox id="User_Psw" runat="server" TextMode="Password"></asp:textbox>
</TD>
<TD>
<asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" ControlToValidate="User_Psw" ErrorMessage="密码不能为空"></asp:requiredfieldvalidator>
</TD>
</TR>
<TR>
<TD style="HEIGHT: 17px">
用户类型：
</TD>
<TD style="HEIGHT: 17px" align="left">
<asp:dropdownlist id="User_Flag" runat="server" DataTextField="Key" DataValueField="Value"></asp:dropdownlist>
</TD>
<TD style="HEIGHT: 17px">
 
</TD>
</TR>
<TR>
<TD>
单位名称：
</TD>
<TD align="left">
<asp:textbox id="User_DanWei" runat="server"></asp:textbox>
</TD>
<TD>
<asp:requiredfieldvalidator id="RequiredFieldValidator3" runat="server" ControlToValidate="User_DanWei" ErrorMessage="单位名称不能为空"></asp:requiredfieldvalidator>
</TD>
</TR>
<TR>
<TD>
地区：
</TD>
<TD align="left">
<asp:dropdownlist id="User_Address" runat="server" DataTextField="s2" DataValueField="s1"></asp:dropdownlist>
</TD>
<TD>
 
</TD>
</TR>
<TR>
<TD style="HEIGHT: 17px">
用户说明：
</TD>
<TD style="HEIGHT: 17px" align="left"><asp:textbox id="User_ShuoMing" runat="server" TextMode="MultiLine"></asp:textbox></TD>
<TD style="HEIGHT: 17px"><asp:requiredfieldvalidator id="RequiredFieldValidator4" runat="server" ControlToValidate="User_ShuoMing" ErrorMessage="用户说明不能为空"></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD></TD>
<TD align="left"><asp:button id="Button1" runat="server" Text="添加用户"></asp:button></TD>
<TD></TD>
</TR>
</TABLE>
</form>
</body>
</HTML>
再贴这个文件的后台编码类:
add_user.aspx.cs
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace oa.admin.users
{
/// <summary>
/// adduser 的摘要说明。
/// </summary>
public class adduser : System.Web.UI.Page
{
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
protected System.Web.UI.WebControls.TextBox User_Name;
protected System.Web.UI.WebControls.TextBox User_Psw;
protected System.Web.UI.WebControls.DropDownList User_Flag;
protected System.Web.UI.WebControls.TextBox User_DanWei;
protected System.Web.UI.WebControls.DropDownList User_Address;
protected System.Web.UI.WebControls.TextBox User_ShuoMing;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator4;

private void Page_Load(object sender, System.EventArgs e)
{
User_Flag.DataSource=ht_User_Flag();
User_Flag.DataBind();
ListItem li=new ListItem();
li.Value="0";
li.Text="系统管理员";
User_Flag.Items.Insert(0,li);

User_Address.DataSource=dt_User_Address();
User_Address.DataBind();

// 在此处放置用户代码以初始化页面
}

ICollection ht_User_Flag()
{
Hashtable ht=new Hashtable();
ht.Add("厅领导","1");
ht.Add("省律师协会","2");
ht.Add("省律师处","3");
ht.Add("市律师协会","4");
ht.Add("市律师处","5");
ht.Add("省直律师事务所","6");
return ht;
}
ICollection dt_User_Address()
{
//其实向这样text和value值相同的用ArrayList做绑定源也不错
DataTable dt = new DataTable();
//DataRow dr;
DataRow[] dr=new DataRow[6];
dt.Columns.Add(new DataColumn("s1", typeof(string)));
dt.Columns.Add(new DataColumn("s2", typeof(string)));
dr[0]=dt.NewRow();
dr[0]["s1"]="石家庄";
dr[0]["s2"]="石家庄";
dt.Rows.Add(dr[0]);
dr[1]=dt.NewRow();
dr[1]["s1"]="保定";
dr[1]["s2"]="保定";
dt.Rows.Add(dr[1]);
dr[2]=dt.NewRow();
dr[2]["s1"]="邢台";
dr[2]["s2"]="邢台";
dt.Rows.Add(dr[2]);
dr[3]=dt.NewRow();
dr[3]["s1"]="张家口";
dr[3]["s2"]="张家口";
dt.Rows.Add(dr[3]);
dr[4]=dt.NewRow();
dr[4]["s1"]="衡水";
dr[4]["s2"]="衡水";
dt.Rows.Add(dr[4]);
dr[5]=dt.NewRow();
dr[5]["s1"]="沧州";
dr[5]["s2"]="沧州";
dt.Rows.Add(dr[5]);

DataView dv = new DataView(dt);
return dv;
}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

private void Button1_Click(object sender, System.EventArgs e)
{
string msg;
oa.cls.Cls_user user=new oa.cls.Cls_user();
user.User_Name=User_Name.Text.ToString();
user.User_Psw=User_Psw.Text.ToString();
user.User_Flag=User_Flag.SelectedItem.Value.ToString();
user.User_DanWei=User_DanWei.Text.ToString();
user.User_Address=User_Address.SelectedItem.Value.ToString();
user.User_ShuoMing=User_ShuoMing.Text.ToString();
if(user.AddUser(out msg))
{
Response.Write("<script>alert(''"+msg+"'');location.href=''adduser.aspx'';</script>");

}
else{
Response.Write("没有添加成功 出错信息:"+msg+" sql语句"+user.sql);
}

}
}
}
最后贴我写的用户管理的类的源代码:
using System;
using System.Data.SqlClient;
using System.Configuration;
namespace oa.cls
{
/// <summary>
/// Cls_user 的摘要说明。
/// </summary>
public class Cls_user
{
public Cls_user()
{
myconn=new SqlConnection((string)ConfigurationSettings.AppSettings["connstring"]);//连接数据库
myconn.Open();//打开
}

public string User_Name; //用户名
public string User_Psw;//用户密码
public string User_Flag;//用户权限
public string User_DanWei;//用户单位
public string User_Address;//用户地址
public string User_ShuoMing;//用户说明
private SqlConnection myconn;
public string sql;

public bool AddUser(out string msg)
{
//用户添加
sql = "insert into [Web_User] (User_Name,User_Psw,User_Flag,User_DanWei,User_Address,User_ShuoMing) values(''"+User_Name+"'',''"+User_Psw+"'',"+User_Flag+",''"+User_DanWei+"'',''"+User_Address+"'',''"+User_ShuoMing+"'')";
SqlCommand cmd = new SqlCommand(sql, myconn);
msg="用户添加成功";
try
{
cmd.ExecuteNonQuery();
return true;

}
catch (SqlException exc)
{
msg=exc.Message;
return false;
}
finally
{
myconn.Close();
}
}
public bool EditUser()
{
return true;
}
public bool DelUser()
{
return true;
}
}
}