C#機房重構之充值
阿新 • • 發佈：2018-12-31
充值思路：查詢可以充值的卡號，進行寵值，插入充值記錄到衝指表，更新學生餘額
建立順序
D層—IDAL層—Factory層—B層—Facade層—UI層
D層
RechargeDAL
public class RechargeDAL:IDAL.RechargeIDAL { public int recharge(Entity.RechargeInfo RechargeInfo)//插入充值記錄 { SQLHelper sqlHelper = new SQLHelper(); SqlParameter[] sqlParams = { new SqlParameter("@CardNo", RechargeInfo .CardNo ), new SqlParameter ("@AddMoney",RechargeInfo .AddMoney), new SqlParameter ("@Date",RechargeInfo .Date ), new SqlParameter ("@Time",RechargeInfo.Time ), new SqlParameter ("@UserID",RechargeInfo .UserID ) , new SqlParameter ("@Check",RechargeInfo.Check ) }; string sql = @"INSERT INTO [Recharge] (CardNo,AddMoney,Date,Time,UserID,[Check])values(@CardNo,@AddMoney,@Date,@Time,@UserID,@Check)"; int rechargecard = sqlHelper.ExtcuteNonQuery (sql,sqlParams , CommandType.Text ); return rechargecard; } }
StudentDAL
public class StudentDAL:IDAL.StudentIDAL
{
public List<Entity.StudentInfo> getAllStudentInfo(Entity .StudentInfo StudentInfo)//得到所有使用卡的學生的資訊
{
SQLHelper sqlHelper = new SQLHelper();
SqlParameter[] sqlParams = { new SqlParameter("@State", StudentInfo.State ) };
//構造要查詢的SQL語句
string sql = @"SELECT * FROM [Student] Where State='使用'";
//使用SQLhelper進行查詢得到結果
DataTable table = sqlHelper.ExecuteQuery (sql,sqlParams ,CommandType.Text );
//將table中的資料轉存到list中去
ConvertHelper convert = new ConvertHelper();
return convert.convertToList<StudentInfo>(table);
}
public int updateStudentCash(Entity.StudentInfo StudentInfo)//更新學生餘額
{
SQLHelper sqlHelper = new SQLHelper();
SqlParameter[] sqlParams = { new SqlParameter("@CardNo", StudentInfo.CardNo),
new SqlParameter ("@Cash",StudentInfo .Cash )};
string sql = @"UPDATE [Student] SET IDA層
RechargeIDAL
public interface RechargeIDAL
{
int recharge(Entity.RechargeInfo RechargeInfo);//插入充值記錄介面
}
StudentIDAL
public interface StudentIDAL { List<Entity.StudentInfo> getAllStudentInfo(Entity.StudentInfo studentInfo);//獲得所有學生資訊介面 int updateStudentCash(Entity.StudentInfo studentInfo);//實現更新學生餘額介面 }
Factory層
RechargeFactory
public class RechargeFactory
{
string StrDB = System.Configuration.ConfigurationManager.AppSettings["DB"];//接收來自配置檔案的資料
public IDAL.RechargeIDAL InsertRechargeInfo()//插入充值記錄
{
string ClassName = StrDB + "." + "RechargeDAL";//DAL層的類名
return (IDAL.RechargeIDAL)Assembly.Load(StrDB).CreateInstance(ClassName);//反射工廠的應用
}
}
StudentFactory
public class StudentFactory
{
string StrDB = System.Configuration.ConfigurationManager.AppSettings["DB"];//接收來自配置檔案的資料
public IDAL.StudentIDAL GetStudent()//獲取學生資訊
{
string ClassName = StrDB + "." + "StudentDAL";//DAL層的類名
return (IDAL.StudentIDAL)Assembly.Load(StrDB).CreateInstance(ClassName);//反射工廠的應用
}
public IDAL.StudentIDAL UpdateStudentCash()//更新學生餘額
{
string ClassName = StrDB + "." + "StudentDAL";//DAL層的類名
return (IDAL.StudentIDAL)Assembly.Load(StrDB).CreateInstance(ClassName);//反射工廠的應用
}
}
BLL層
RechargeBLL
public class RechargeBLL
{
public int InsertRechargeRecord(Entity.RechargeInfo RechargeInfo)//插入充值記錄
{
//呼叫工廠方法建立InsertRechargeInfo介面
Factory.RechargeFactory fact = new Factory.RechargeFactory();
//呼叫插入的方法
IDAL.RechargeIDAL idal = fact.InsertRechargeInfo();
int rechargecard = idal.recharge(RechargeInfo);
return rechargecard;
}
}
StudentBLL層
public class StudentBLL
{
public List<Entity.StudentInfo> GetALLStudentinfo(Entity.StudentInfo StudentInfo)//查詢所有學生資訊
{
Factory.StudentFactory fact = new Factory.StudentFactory();//例項化工廠
IDAL.StudentIDAL idal = fact.GetStudent ();
List<Entity.StudentInfo> list = idal.getAllStudentInfo(StudentInfo);
return list;
}
}
Facade層
RechargeFacade
public class RechargeFacade
{
public int InsertRechargeInfo(Entity.RechargeInfo rechargeInfo )//插入充值記錄
{
BLL.RechargeBLL rechargeBLL = new BLL.RechargeBLL();
int rechargecard = rechargeBLL.InsertRechargeRecord(rechargeInfo );
return rechargecard ;
}
}
StudentFacade
public class StudentFacade
{
//獲取所有學生資訊
public List<Entity.StudentInfo> GetAllStudentInfo(Entity.StudentInfo student)
{
BLL.StudentBLL studentBLL = new BLL.StudentBLL();
List<Entity.StudentInfo> list =studentBLL.GetALLStudentinfo (student);
return list;
}
//更新學生餘額
public int UpdateStudentCash(Entity.StudentInfo student)
{
BLL.StudentBLL studentBLL = new BLL.StudentBLL();
return studentBLL.UpdateStudentCash(student);
}
}
UI層
//加載出所有可以充值的卡號
private void frmRecharge_Load(object sender, EventArgs e)
{
Entity.StudentInfo student = new Entity.StudentInfo();//例項化實體
Facade.StudentFacade studentFacade = new Facade.StudentFacade();
student.State = "使用";
List<Entity.StudentInfo> list = studentFacade.GetAllStudentInfo(student);//得到所有使用卡的學生資訊
list = studentFacade.GetAllStudentInfo(student);
if (list.Count == 0)
{
MessageBox.Show("無可充值的學生", "溫馨提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
for (int i = 0; i < list.Count; i++)
{
comboCardNo.Items.Add(list[i].CardNo);//載入學號
}
}
//載入充值的數值
for (int i = 10; i < 100; i += 10)
{
comboAddMoney.Items.Add(i);
}
for (int i = 100; i < 500; i += 100)
{
comboAddMoney.Items.Add(i);
}
}
//充值操作
private void btnrecharge_Click(object sender, EventArgs e)
{
Entity.RechargeInfo rechargeInfo = new Entity.RechargeInfo();//例項化充值層
Facade.RechargeFacade faca = new Facade.RechargeFacade();//例項化外觀層
//定義需要插入到充值表當中的資料
rechargeInfo.CardNo = Convert.ToInt32(comboCardNo.Text.Trim());
rechargeInfo.AddMoney = Convert.ToDecimal(comboAddMoney.Text.Trim());
rechargeInfo.Check = "未結賬";
rechargeInfo.UserID = Convert.ToInt32(frmLogin.UserID);
rechargeInfo.Date = Convert.ToDateTime(DateTime.Now.ToShortDateString());
rechargeInfo.Time = Convert.ToDateTime(DateTime.Now.ToShortTimeString());
Entity.StudentInfo student = new Entity.StudentInfo();//例項化學生
Facade.StudentFacade facade = new Facade.StudentFacade(); //例項化學生外觀
student.CardNo = Convert.ToInt32(comboCardNo.Text.Trim());
student.State = "使用";
DataTable table = facade.GetStudent(student);
student.Cash = Convert.ToDecimal(table.Rows[0][8].ToString()) + Convert.ToDecimal(comboAddMoney.Text.Trim());
int rechargecard = faca.InsertRechargeInfo(rechargeInfo);//呼叫插入充值記錄方法
int updatestudentcash = facade.UpdateStudentCash(student);//呼叫更新學生餘額的方法
//顯示充值資訊
label3.Text = "充值卡號：" + comboCardNo.Text + System.Environment.NewLine
+ "原金額：" + table.Rows[0][9].ToString() + System.Environment.NewLine
+ "充值金額：" + comboAddMoney.Text + System.Environment.NewLine
+ "現有金額：" + student.Cash + System.Environment.NewLine
+ "充值日期：" + DateTime.Now.ToShortDateString() + System.Environment.NewLine
+ "充值時間：" + DateTime.Now.ToShortTimeString() + System.Environment.NewLine
+ "充值教師：" + frmLogin.UserID;
MessageBox.Show("充值成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}