loginapp.cs

食堂就餐提醒系统(含源码) 为一个单位开发的

				Public.currentUserName = DBConn.GetUserRealName(Public.currentUserID);

				//记录到本地配置文件
				Public.configXml.Rows[0]["LastUserID"]  = this.user.Text.Trim();
				Public.configXml.Rows[0]["LastUserPwd"] = Public.Encode("ESST_PWD",this.pwd.Text);
				Public.configXml.Rows[0]["LastUserIP"]  = this.IP.Text.Trim();
				
				if(this.autoLogin.Checked ) Public.configXml.Rows[0]["AutoLogin"] = "1";
				else                        Public.configXml.Rows[0]["AutoLogin"] = "0";

				//保存到XML
				SRXML.SaveDataTableToXML(Public.configXml,Public.configFile);

				try{

					//取出提醒时间段
					DataTable alertTimes = DBConn.GetAlertTime();

					string  today = DBConn.GetServerTime().Date.ToString().Replace("0:00:00","");

					//MessageBox.Show(today + alertTimes.Rows[0]["StartTime"].ToString());

					Public.startTime = Convert.ToDateTime(today + alertTimes.Rows[0]["StartTime"].ToString());
					Public.endTime   = Convert.ToDateTime(today + alertTimes.Rows[0]["EndTime"].ToString());
					
					if(alertTimes.Rows[0]["isMod"].ToString() == "1"){
						Public.alertingIsMod = true;
					}else{
						Public.alertingIsMod = false;
					}

				}catch(Exception ex){
					MessageBox.Show(ex.Message.ToString());
					return;
				}

				this.Visible             = false;
				this.notifyIcon1.Visible = false;

				Public.currentRCS = "CLIENT";

				//
				//Public.loginWin = null;

				if(this.mainForm == null){
					this.mainForm = new Form1();
					this.mainForm.Show();
				}

				//System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(this.ShowMainForm));
				//thread.IsBackground = true;
				//thread.Start();

				//
				//XFMAS.Admin.MainForm mf = new XFMAS.Admin.MainForm();
				//mf.Show();

			}else{
				
				MessageBox.Show("用户名或密码不正确，不能登录服务器！");
				return;
			}

		}

		/// <summary>
		/// 显示主窗口
		/// </summary>
		private void ShowMainForm(){
			if(this.mainForm == null){
				this.mainForm = new Form1();
				this.mainForm.Show();
			}
		}

		private void button2_Click(object sender, System.EventArgs e) {
			linkLabel1_LinkClicked(null,null);
		}

		#region 读取xml文件里的配置

		/// <summary>
		/// 读取磁盘中事先设置好的配置参数
		/// 主要是数据库和自动登录的配置
		/// </summary>
		public void ReadConfigXml(){

			bool isSetWin = false;
			
			//检查System.Config 是否存在
			if(!File.Exists(Public.configFile)){
				isSetWin = true;
			}else{
				Public.configXml = SRXML.ConfigTable();
			}

			if(!isSetWin){
			
				//读取配置
				try{
					Public.configXml = SRXML.ReadDataTaBleFromXML(Public.configFile);
				}catch(Exception ex){
					isSetWin = true;
				}

				this.Text = "登录[检测服务器连接....]";

				//验证连接串
				if(!isSetWin){
					try{
						//检测数据库的连接是否正确
						try{
							Public.Conn(Public.configXml.Rows[0]["SqlServer"].ToString(),Public.configXml.Rows[0]["SqlUser"].ToString(),Public.DeCode("ESST_PWD",Public.configXml.Rows[0]["SqlPwd"].ToString()));
						}catch(Exception ex){
							this.ChangeNotIcon(false);
							string msg = "服务器连接出错，点击“是”重新设置服务器参数，点击“否”关闭程序！\r\n\r\n系统异常信息：" + ex.Message.ToString();
							if(MessageBox.Show(msg,"启动失败",MessageBoxButtons.YesNo,MessageBoxIcon.Question) == DialogResult.Yes){
								SetWin sw = new SetWin();
								sw.ShowDialog();
								this.ReadConfigXml();
							}else{
								Application.Exit();
							}
							return;
						}

						this.Text = "登录[应用配置....]";

						this.isLoadConfig = true;

					}catch(Exception ex){
						isSetWin = true;
					}
				}
			}

			if(isSetWin){
				if(MessageBox.Show("本地配置文件不存在或已失效，请重新配置服务器连接的参数！") == DialogResult.OK){
					SetWin sw = new SetWin();
					sw.ShowDialog();
					this.ReadConfigXml();
				}
			}
		}

		/// <summary>
		/// 根据IP取出绑定的用户名
		/// </summary>
		private void LoadUserName(){

			if(this.IP.Text.Trim() != ""){

				this.user.Items.Clear();

				//检查IP是否符合要求
				string ipStr = this.IP.Text.Trim();
				string[] xx = ipStr.Split('.');
				for(int i=0;i<xx.Length;i++){
					string xxx = xx[i].ToString();
					try{
						if(xxx.Length > 3) throw new Exception("IP输入不符合要求");
						int __xx = Int32.Parse(xxx);
					}catch{
						MessageBox.Show("IP地址输入不正确！");
						return;
					}
				}

				DataTable users = DBConn.UsersForIP(this.IP.Text.Trim());
				if(users != null){
					foreach(DataRow row in users.Rows){
						this.user.Items.Add(row["userName"].ToString());
					}
				}
			}
		}


		#endregion

		/// <summary>
		/// 载入配置
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e) {

			//this.Text = "登录[检查升级....]";

			this.timer1.Stop();
			//this.ReadConfigXml();

			//System.Threading.Thread u = new System.Threading.Thread(new System.Threading.ThreadStart(this.CheckUpdate));
			//u.IsBackground = true;
			//u.Start();
			
			//System.Threading.Thread.Sleep(1000);

			this.Text = "登录[载入配置....]";

			System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(this.ReadConfigXml));
			thread.IsBackground = true;
			thread.Start();

		}

		/// <summary>
		/// 变更了IP后
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void IP_TextChanged(object sender, System.EventArgs e) {
			this.LoadUserName();
		}

		private void IP_Leave(object sender, System.EventArgs e) {
			this.IP_TextChanged(sender,e);
		}

		/// <summary>
		/// 不能关闭
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void notifyIcon1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) {
			if(e.Clicks == 2) this.Visible = true;
		}

		private void LoginApp_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
			e.Cancel = !this.isExitApp;
			this.Visible = false;
		}

		private void menuItem1_Click(object sender, System.EventArgs e) {
			AboutUs au = new AboutUs();
			au.ShowDialog();
		}

		/// <summary>
		/// 是否新版本
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void CheckUpdate(){

			String temp = "";

			try{
				WebRequest Wrequest     = WebRequest.Create("http://10.227.64.92/AMS/ClientUpdate.htm");
				WebResponse Wresponse   = Wrequest.GetResponse();
				Stream Sm               = Wresponse.GetResponseStream();
				StreamReader Sr         = new StreamReader(Sm,Encoding.GetEncoding("GB2312"));
				temp                    = Sr.ReadToEnd().ToString();
				Sr.Close();
			}catch(Exception ex){
				MessageBox.Show("升级检查失败：" + ex.Message.ToString());
				return;
			}

			int    oneI    = temp.IndexOf("]");
			string softVer = temp.Substring(1,oneI-1).ToString();

			try{
				//if(Public.configXml.Rows[0]["SoftVer"].ToString() != softVer && MessageBox.Show("系统检查到有升级文件可供更新，确定升级吗？","升级确认",MessageBoxButtons.OKCancel,MessageBoxIcon.Question) == DialogResult.OK){
				
				if(Public.configXml.Rows[0]["SoftVer"].ToString() != softVer){		

					

					Public.configXml.Rows[0]["SoftVer"] = softVer;

					//保存到XML
					SRXML.SaveDataTableToXML(Public.configXml,Public.configFile);
					
					System.Diagnostics.Process p = new Process();
					p.StartInfo.FileName = Application.StartupPath + "\\UpdateEr.exe";
					p.Start();

					this.notifyIcon1.Icon = null;
					Application.Exit();

				}
			}catch(Exception ex){
				MessageBox.Show("开始升级时出错：" + ex.Message.ToString());
			}
		}

		/// <summary>
		/// 改变托盘图标
		/// </summary>
		/// <param name="conn"></param>
		public void ChangeNotIcon(bool conn){
			try{
				Icon icon = null;
				if(conn){
					icon = new Icon(this.iconFile + "conn.ico");
				}else{
					icon = new Icon(this.iconFile + "noconn.ico");
				}
				if(icon != null){
					this.notifyIcon1.Icon = icon;
					this.Icon = icon;
				}
			}catch{}
		}

		/// <summary>
		/// 检测是否进行自动处理
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void timer2_Elapsed(object sender, System.Timers.ElapsedEventArgs e) {
			if(this.isLoadConfig){
				this.timer2.Stop();
				this.IsAvaliable();
			}
		}

		/// <summary>
		/// 使程序可使用
		/// </summary>
		private void IsAvaliable(){
			
			//记住上次输入的登录信息
			if(Public.configXml.Rows[0]["LastUserIP"].ToString() != "") this.IP.Text   = Public.configXml.Rows[0]["LastUserIP"].ToString();
			this.user.Text = Public.configXml.Rows[0]["LastUserID"].ToString();
						

			//从服务器端获取系统相关配置参数，如授权文件、用户表连接串等
			try{

				DataSet ds = DBConn.GetSystemInfo();
				DataRow row = ds.Tables[0].Rows[0];

				//用户表数据库的配置
				Public.usersDbInfo = row["UsersSqlServer"].ToString();

				//验证用户数据库登录信息
				string usersDBconn = DBConn.CheckUsersDBConn();

				//如果有异常则抛出
				if(usersDBconn != "OK"){
					throw new Exception(usersDBconn);
				}

				//系统名称
				Public.systemName = row["systemName"].ToString();

				this.notifyIcon1.Text = this.Text;

			}catch(Exception ex){
				MessageBox.Show("从服务器端读取系统配置时出错：" + ex.Message.ToString());
				return;
			}

			//应用配置到界面
			if(Public.configXml.Rows[0]["autoLogin"].ToString() == "1"){

				this.autoLogin.Checked = true;

				this.pwd.Text  = Public.DeCode("ESST_PWD",Public.configXml.Rows[0]["LastUserPwd"].ToString());

				//自动登录
				b222_Click(null,null);
			}

			//根据IP取出绑定的用户名
			this.LoadUserName();

			this.Text = "登录["+ Public.systemName +"]";

			this.b222.Enabled = true;
			this.user.Enabled = true;
			this.pwd.Enabled  = true;
			this.button1.Enabled = true;
			this.button2.Enabled = true;
			this.autoLogin.Enabled = true;
		}
	}
}