【C#机房重构】双职责链+策咯模式+实现没钱自动下机
###前言：
机房重构终于完成了，发现最复杂的地方是下机，这次重构完成了之前VB版没有完成的功能——用户没钱自动下机！如果感觉这个功能很棒的话，那可要看看这篇博客啊！
###一、流程图
###职责链一：
time代表消费时间
unitTime代表单位递增时间
###职责链二：
由于会员用户与普通用户的上网单价不同，所以加上一条策略模式与两条职责链模式互相结合！
接下来给大家看一下职责链和策咯模式相互结合的相关代码！
BLL层
####策略模式：
#region 策略模式,用来判定是普通用户，还是会员用户
public abstract class StrategyStudentsLevel
{
public abstract double GetIncreaseCash(Entity.BasicData basicdata);
}
public class GetPerCash
{
StrategyStudentsLevel studentLevel;
public double GetperCash(Entity.StudentInfo studentinfo, Entity.BasicData basic)
{
switch (studentinfo.Type.Trim())
{
case "普通用户":
studentLevel = new TmpStudent();
break;
case "会员用户":
studentLevel = new FixStudent();
break;
}
return studentLevel.GetIncreaseCash(basic);
}
}
//普通用户
public class TmpStudent:StrategyStudentsLevel
{
double PerCash;
public override double GetIncreaseCash(Entity.BasicData basicdata)
{
UserInfoBLL userBasicdata = new UserInfoBLL();
DataTable tableBasicData = userBasicdata.SelectBasicData(basicdata);
PerCash = Convert.ToDouble(tableBasicData.Rows[0]["tmpRate"]);
return PerCash;
}
}
//会员用户
public class FixStudent : StrategyStudentsLevel
{
double perCash;
public override double GetIncreaseCash(BasicData basicdata)
{
UserInfoBLL userBasicdata = new UserInfoBLL();
DataTable tableBasicdata = userBasicdata.SelectBasicData(basicdata);
perCash = Convert.ToDouble(tableBasicdata.Rows[0]["Rate"]);
return perCash;
}
}
#endregion
####算钱的职责链：
bLL层
public abstract class ChainMoney
{
protected ChainMoney successor;
//设置继承者
public void SetSuccessor(ChainMoney successor)
{
this.successor = successor;
}
//处理请求的抽象方法
public abstract void CollectMoneyy(Entity.StudentInfo studentinfo, Entity.BasicData basic,GetPerCash StudentLevelcash);
}
//准备时间内收钱
public class CollectMoneyPre : ChainMoney
{
public override void CollectMoneyy(StudentInfo studentinfo, BasicData basic, GetPerCash StudentLevelcash)
{
//上机时间小于准备时间,不收钱
if (Convert.ToInt32(studentinfo.Consumetime) <= Convert.ToDouble(basic.PrepareTime))
{
studentinfo.Consume = 0;
studentinfo.Cash = studentinfo.Cash - studentinfo.Consume;
}
else
{
successor.CollectMoneyy(studentinfo,basic, StudentLevelcash);
}
}
}
//大于准备时间，小于递增单位上机时间,按照1.2倍价钱收费
public class CollectMoneyLeast : ChainMoney
{
public override void CollectMoneyy(StudentInfo studentinfo, BasicData basic, GetPerCash StudentLevelcash)
{
//上机时间大于准备时间,按照单价开始收费
if (Convert.ToInt32(studentinfo.Consumetime) > Convert.ToDouble(basic.PrepareTime)&& Convert.ToInt32(studentinfo.Consumetime) < Convert.ToDouble(basic.untiTime))
{
double Money = (Convert.ToDouble(studentinfo.Consumetime) / basic.untiTime + 1) * StudentLevelcash.GetperCash(studentinfo, basic) * 1.2;
#region 避免Consume与cash出现负值
if (Money >= 0)
{
studentinfo.Consume = Money;
}
else
{
studentinfo.Consume = studentinfo.Cash;
}
if ((studentinfo.Cash - studentinfo.Consume) >= 0)
{
studentinfo.Cash = (studentinfo.Cash - studentinfo.Consume);
}
else
{
studentinfo.Cash = 0;
}
#endregion
}
else
{
successor.CollectMoneyy(studentinfo, basic, StudentLevelcash);
}
}
}
//非单位递增时间收钱
public class CollectMoneyNormal : ChainMoney
{
public override void CollectMoneyy(StudentInfo studentinfo, BasicData basic, GetPerCash StudentLevelcash)
{
//上机时间大于单位时间,按照单价开始收费
if (Convert.ToInt32(studentinfo.Consumetime)> Convert.ToInt32(basic.untiTime))
{
double Money= (Convert.ToInt32(studentinfo.Consumetime) / basic.untiTime + 1) * StudentLevelcash.GetperCash(studentinfo, basic);
#region 避免Consume与cash出现负值
if (Money>=0)
{
studentinfo.Consume = Money;
}
else
{
studentinfo.Consume = studentinfo.Cash;
}
if (studentinfo.Cash - studentinfo.Consume >= 0)
{
studentinfo.Cash = studentinfo.Cash - studentinfo.Consume;
}
else
{
studentinfo.Cash = 0;
}
#endregion
}
else
{
successor.CollectMoneyy(studentinfo, basic, StudentLevelcash);
}
}
}
外观层
public class StudentConsumeFacade
{
public void Consume(Entity.StudentInfo studentinfo,Entity.BasicData basicdata,BLL.GetPerCash studentLevelCash)
{
// BLL.StrategyStudentsLevel studentLevel;
//实例化收钱的方式
BLL.ChainMoney PerConsume = new BLL.CollectMoneyPre();
BLL.ChainMoney LeastConsume = new BLL.CollectMoneyLeast();
BLL.ChainMoney NormalConsume = new BLL.CollectMoneyNormal();
//设置职责链的上下家
PerConsume.SetSuccessor(LeastConsume);
LeastConsume.SetSuccessor(NormalConsume);
//职责链的首家开始提交请求
PerConsume.CollectMoneyy(studentinfo,basicdata, studentLevelCash);
}
}
####根据用户剩余的余额有不同的显示的职责链
bll层
public abstract class ChainOffTime
{
protected ChainOffTime successor;
//设置继承者
public void SetSuccessor(ChainOffTime successor)
{
this.successor = successor;
}
public abstract int ConsumeTime(Entity.StudentInfo studentinfo, Entity.BasicData basic,GetPerCash getpercash);
}
public class TimeTenMinute : ChainOffTime
{
public override int ConsumeTime(Entity.StudentInfo studentinfo, Entity.BasicData basic,GetPerCash getpercash)
{
if ( (Convert.ToInt32(studentinfo.timeRemain) - 590)==0)
{
int tenMinute = 1;
return tenMinute;
}
else
{
successor.ConsumeTime(studentinfo,basic, getpercash);
return fifteenSecond.fifteenSecond1;
}
}
}
public class fifteenSecond : ChainOffTime
{
public static int fifteenSecond1;
public override int ConsumeTime(Entity.StudentInfo studentinfo, Entity.BasicData basic, GetPerCash getpercash)
{
if (Convert.ToInt32(studentinfo.timeRemain) - 15== 0)
{
fifteenSecond1 = 2;
return fifteenSecond1;
}
else
{
return 0;
}
}
}
外观层
public class StudentInfoTimeFacade
{
public int RemainTime(Entity.StudentInfo studentinfo,Entity.BasicData basic, BLL.GetPerCash studentLevelCash)
{
BLL.ChainOffTime tenMinute = new BLL.TimeTenMinute();
BLL.ChainOffTime fifteenSecond = new BLL.fifteenSecond();
//设置职责链的上家
tenMinute.SetSuccessor(fifteenSecond);
int Result= tenMinute.ConsumeTime( studentinfo,basic, studentLevelCash);
return Result;
}
}
根据用户剩余的余额有不同的显示的职责链,之所以返回1和2是因为这些需要在UI层进行判断，显示出不同的框！
UI层全部代码：
public partial class frmMain : Form
{
#region 定义全局对象以及变量
public static double cash; //学生卡上的余额
public static double limitCash; //最小上机金额
public static double unitTime; //递增单位时间
public static double time; //计算
int TimeCount = 0; //定义一个long型变量
public delegate void setControlValue(long value);//定义一个委托
//实体层与外观层
Entity.BasicData basic = new Entity.BasicData();
Entity.StudentInfo studentinfo = new Entity.StudentInfo();
Facade.StudetnOnOffComputerFacade FstudentOnOff = new Facade.StudetnOnOffComputerFacade();
#endregion
public frmMain()
{
#region 界面初始化
InitializeComponent();
lblUserName.Text = frmLogin.userid;
studentinfo.Cardno = Convert.ToInt32(frmLogin.userid);
DataTable table = FstudentOnOff.SelectStudentCash(studentinfo);
lblNowBalance.Text = Convert.ToString(table.Rows[0][0]);
cash = Convert.ToDouble(table.Rows[0][0]);
TimCosume.Stop();
lblHavaOnline.Visible = false;
lblHaveOnlineWord.Visible = false;
btnOffLine.Enabled = false;
#endregion
txtInformation.Visible = false;
}
private void groupBoxup_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.Clear(this.BackColor);
}
//实时显示日期和时间
private void TimNowDataTime_Tick(object sender, EventArgs e)
{
lblNOwdata.Text = DateTime.Now.ToShortDateString().ToString();
lblNowTime.Text = DateTime.Now.ToLongTimeString().ToString();
}
//上机
public void btnOnline_Click(object sender, EventArgs e)
{
#region 调用表basicdata中的数据，赋值到实体层
Facade.UserInfoFacade Fbasicdata = new Facade.UserInfoFacade();
DataTable tableBasicdata = Fbasicdata.SelectBasicData(basic);
basic.Fixrate = Convert.ToInt32(tableBasicdata.Rows[0]["Rate"]);
basic.tmpRate = Convert.ToInt32(tableBasicdata.Rows[0]["tmpRate"]);
basic.untiTime = Convert.ToInt32(tableBasicdata.Rows[0]["unitTime"]);
basic.leastTime = Convert.ToInt32(tableBasicdata.Rows[0]["leastTime"]);
basic.PrepareTime = Convert.ToInt32(tableBasicdata.Rows[0]["PrepareTime"]);
limitCash = Convert.ToDouble(tableBasicdata.Rows[0]["limitCash"]);
unitTime = Convert.ToDouble(tableBasicdata.Rows[0]["unitTime"]);
#endregion
if (cash < limitCash)
{
MessageBox.Show("余额不足,不可以上机,请找操作员充值");
}
else
{
btnOffLine.Enabled = true;
btnOnline.Enabled = false;
#region //更新line表和Online表
DataTable table = FstudentOnOff.SelectStudentInfo(studentinfo);
string text = table.Rows[0][0].ToString();
studentinfo.Cardno = Convert.ToInt32(frmLogin.userid);
studentinfo.Studentno = Convert.ToInt32(table.Rows[0]["Studentno"]);
studentinfo.Studentname = table.Rows[0]["studentName"].ToString();
studentinfo.Sex = table.Rows[0]["sex"].ToString();
studentinfo.Department = table.Rows[0]["department"].ToString();
studentinfo.Ondate = DateTime.Now.ToShortDateString().ToString();
studentinfo.Ontime = DateTime.Now.ToShortTimeString().ToString();
studentinfo.Type = table.Rows[0]["type"].ToString();
studentinfo.Computer = System.Environment.UserName;
studentinfo.Cash = Convert.ToInt32(table.Rows[0]["cash"]);
studentinfo.Ischeck = "未结账";
FstudentOnOff.InsertStudentLine(studentinfo);
FstudentOnOff.InsertStudentOnLine(studentinfo);
#endregion
lblHavaOnline.Visible = true;
lblHaveOnlineWord.Visible = true;
TimCosume.Start();
MessageBox.Show("您已上机");
Facade.StudentInfoTimeFacade FConsumeTime = new Facade.StudentInfoTimeFacade();
BLL.GetPerCash getpercash = new GetPerCash();
//计算
time = (Convert.ToDouble(cash) / Convert.ToDouble(getpercash.GetperCash(studentinfo, basic))) * Convert.ToInt32(basic.untiTime) * 60;
}
}
#region time控件利用委托实现时间从00:00:00开始记时间
//实现了每一秒加上1
private void TimCosume_Tick(object sender, EventArgs e)
{
this.Invoke(new setControlValue(ShowTime),TimeCount);//前边必须是一个委托的方法，后边是一个整型的数据类型！
TimeCount++;
Entity.BasicData basic = new Entity.BasicData();
studentinfo.Consumetime = (TimeCount / 60 + 1);
/*
*一条用来实现学生们自己下机，所剩钱为10分钟的时候，出现提示条，所剩时间为15秒的时候，
*弹出框，然后倒计时！最后自己下机
*/
Facade.StudentInfoTimeFacade FConsumeTime = new Facade.StudentInfoTimeFacade();
BLL.GetPerCash getpercash = new GetPerCash();
//不同的int会出现不同的窗体，10分钟的窗体，与15秒钟的窗体
time--;
studentinfo.timeRemain = time;
int TimeInformation = FConsumeTime.RemainTime(studentinfo, basic, getpercash);
if (TimeInformation == 1)
{
txtInformation.Visible = true;
timerTxtInformation.Start();
}
if (TimeInformation == 2)
{
TimCosume.Stop();
frmOffCountDown frmDownOline = new frmOffCountDown();
frmDownOline.Show();
Facade.StudetnOnOffComputerFacade FstudentOnOff = new Facade.StudetnOnOffComputerFacade();
#region 更新表line和Online
//删除Online表中的正在上机的信息
FstudentOnOff.DeleteStudentOnLine(studentinfo);
//更新line中的信息
studentinfo.Offdate = DateTime.Now.ToShortDateString();
studentinfo.Offtime = DateTime.Now.ToShortTimeString();
FstudentOnOff.UpdaStudentLine(studentinfo);
#endregion
#region 一条判断学生在上机，根据不同的时间消费金额不同，然后进行收费
studentinfo.Consumetime = (TimeCount / 60 + 1);
Facade.StudentConsumeFacade FconsumeMoney = new Facade.StudentConsumeFacade();
FconsumeMoney.Consume(studentinfo, basic, getpercash);
#endregion
//更新表StudentInfo中的cash
FstudentOnOff.UpdateStudentInfoCash(studentinfo);
TimCosume.Stop();
}
}
///
/// 方法显示时间格式
///
///
private void ShowTime(long t)
{
TimeSpan temp = new TimeSpan(0, 0, (int)t);
lblHavaOnline.Text = string.Format("{0:00}:{1:00}:{2:00}", temp.Hours, temp.Minutes, temp.Seconds);
}
#endregion
//下机
private void btnOffLine_Click(object sender, EventArgs e)
{
btnOnline.Enabled = false;
btnOffLine.Enabled = true;
Facade.StudetnOnOffComputerFacade FstudentOnOff = new Facade.StudetnOnOffComputerFacade();
#region 更新表line和Online
//删除Online表中的正在上机的信息
FstudentOnOff.DeleteStudentOnLine(studentinfo);
//studentinfo.Consumetime = TimeCount / 60 + 1;
// Entity.UserInfo userinfo = new Entity.UserInfo();
//更新line中的信息
studentinfo.Offdate = DateTime.Now.ToShortDateString();
studentinfo.Offtime = DateTime.Now.ToShortTimeString();
FstudentOnOff.UpdaStudentLine(studentinfo);
#endregion
#region 一条判断学生在上机，根据不同的时间消费金额不同，然后进行收费
studentinfo.Consumetime = (TimeCount / 60 + 1);
Facade.StudentConsumeFacade FconsumeMoney = new Facade.StudentConsumeFacade();
BLL.GetPerCash getpercash = new GetPerCash();
FconsumeMoney.Consume(studentinfo, basic, getpercash);
#endregion
//更新表StudentInfo中的cash
FstudentOnOff.UpdateStudentInfoCash(studentinfo);
TimCosume.Stop();
MessageBox.Show("下机成功");
}
#region timer控件实现text控件的闪烁
private void timerTxtInformation_Tick(object sender, EventArgs e)
{
if (txtInformation.BackColor == Color.Blue)
{
txtInformation.BackColor = Color.White;
}
else
{
txtInformation.BackColor = Color.Blue;
}
}
#endregion
}
界面：
因为下机太复杂，博客有点长，不好意思，大家随意看！