}//绘制Button的背景色
private bool CanBook()
{
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
bool result = true;
try
{
con.Open();
string cmd = "select * from seatbook where UserId = '" + Connect.GetUser() + "';";
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
result = false;
}
reader.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
return(result);
}
private bool IsHaveQual(int num)
{
MySqlConnection con = Connect.Connection();
bool result = false;
string cmd = "select count(UserId) as 'cnt' from borrow where UserId = '" + Connect.GetUser() + "';";
try
{
con.Open();
MySqlCommand command = new MySqlCommand(cmd, con);
MySqlDataReader reader = command.ExecuteReader();
int i = 0;
if (reader.Read())
{
i = Convert.ToInt32(reader["cnt"].ToString());
}
if (i + num <= 3)
{
result = true;
}
con.Close();
reader.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
return(result);
}
//功能函数
//=======================================================================================================================================
private void Init()
{
MySqlConnection con = Connect.Connection();
string cmd = "select * from UserMessage where UserId = '" + Connect.GetUser() + "';";
MySqlCommand command = new MySqlCommand(cmd, con);
MySqlDataReader reader;
bool isHave = true;
try
{
con.Open();
reader = command.ExecuteReader();
reader.Read();
if (reader.HasRows)
{
isHave = false;
}
reader.Close();
if (isHave)
{
command.CommandText = "insert into UserMessage (UserId) values('" + Connect.GetUser() + "');";
command.ExecuteNonQuery();
}
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message + "Init");
}
con.Close();
return;
}//检查是否有有关该用户的信息记录
//功能函数
//==================================================================================================================================================
private void Init()
{
List1AddHead();
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
string cmd = "select * from book;";
try
{
con.Open();
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
while (reader.Read())
{
string bookname = reader["BookName"].ToString().Trim();
string writer = reader["Writer"].ToString().Trim();
bookname = Formatting(bookname, 15);
writer = Formatting(writer, 15);
string str = bookname + writer;
this.list1.Items.Add(str);
}
reader.Close();
}catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
}
private void enter_Click(object sender, RoutedEventArgs e)
{
bool mark = false;
string pwd = getPassWord();
MySqlConnection con = Connect.Connection();
MySqlCommand command = new MySqlCommand();
command.CommandText = "select * from login where PassWord = '******' and UserId = '" + Connect.GetUser() + "';";
command.Connection = con;
con.Open();
MySqlDataReader reader = command.ExecuteReader();
if (reader.HasRows)
{
mark = true;
}
reader.Close();
con.Close();
if (mark)
{
ResetPassword reset = new ResetPassword();
reset.WindowStyle = WindowStyle.None;
reset.WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen;
reset.ShowDialog();
this.Close();
}
else
{
MessageBox.Show("密码输入不正确！");
}
}
//功能函数区域
//=====================================================================================================================
//================================================================================================================================
private bool IsBorrowed(string bookname, string writter)
{
MySqlConnection con = Connect.Connection();
try
{
con.Open();
string cmd = "select * from borrow where BookName = '" + bookname + "' and Writer = '" + writter + "';";
MySqlCommand command = new MySqlCommand(cmd, con);
MySqlDataReader reader = command.ExecuteReader();
bool result;
if (reader.HasRows)
{
result = true;
}
else
{
result = false;
}
con.Close();
reader.Close();
return(result);
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
return(true);
}
}//判断是否被借走
//点击事件
//==================================================================================================================================================
private void Open_Click(object sender, RoutedEventArgs e)
{
text.Clear();
if (list1.SelectedItem == null)
{
return;
}
if (list1.SelectedIndex == 0)
{
return;
}
string str = list1.SelectedItem.ToString().TrimEnd('|');
string[] array = str.Split('|');
string bookname = array[0];
string writer = array[1];
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
string cmd = "select Path from bookpath where BookName = '" + bookname + "' and Writer = '" + writer + "';";
try
{
con.Open();
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
reader.Read();
if (!reader.HasRows)
{
MessageBox.Show("未找到文件！");
return;
}
string path = reader["Path"].ToString();
//if (reader.HasRows)
//{
// path = reader["Path"].ToString();
//}
//else
//{
// MessageBox.Show("暂时没有相关书籍！");
//}
reader.Close();
string temp = string.Empty;
StreamReader streamReader = new StreamReader(@path, Encoding.UTF8);
while (!streamReader.EndOfStream)
{
temp = streamReader.ReadLine().ToString();
this.text.Text = text.Text + " " + temp + "\n" + "\n";
}
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
}
private void borrow_Click(object sender, RoutedEventArgs e)
{
if (!IsHaveQual(num))
{
MessageBox.Show("可借阅数目超过最大上限！");
return;
}
if (num == 0)
{
return;
}
string[] gather = new string[num];
for (int i = 0; i < num; i++)
{
gather[i] = this.list1.Items[i + 1].ToString();
}
for (int i = 0; i < num; i++)
{
string[] array = gather[i].Split('|');
array[0] = array[0].Trim();
array[1] = array[1].Trim();
MySqlConnection con = Connect.Connection();
try
{
con.Open();
string cmd = "insert into borrow values ('" + array[0] + "','" + array[1] + "','" + Connect.GetUser() + "');";
MySqlCommand command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
MessageBox.Show("借阅成功！");
//string check = "select * from borrow where BookName = '" + array[0] + "' and Writer = '" + array[1] + "' and UserId = '" + Connect.GetUser() + "';";
//command = new MySqlCommand(check, con);
//MySqlDataReader reader = command.ExecuteReader();
//if (reader.HasRows)
//{
// MessageBox.Show("借阅成功！");
//}
//else
//{
// MessageBox.Show("借阅失败！");
// return;
//}
//reader.Close();
con.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
return;
}
}
list1.Items.Clear();
List1AddHead();
num = 0;
}
private void Cancel(object sender, MouseButtonEventArgs e)//右键点击取消
{
var button = sender as Button;
if (button.Background == System.Windows.Media.Brushes.Green)
{
return;
}
if (CanBook())
{
MessageBox.Show("你无权取消该位置的预约！");
return;
}
string name = button.Name;
string[] array = name.Split('_');
string row = array[1];
string column = array[2];
bool mark = false;
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
try
{
con.Open();
string cmd = "select * from seatbook where x = '" + row + "' and y = '" + column + "'and UserId = '" + Connect.GetUser() + "';";
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
mark = true;
}
else
{
MessageBox.Show("你无权取消该位置的预约！");
}
reader.Close();
if (mark)
{
cmd = "delete from seatbook where UserId = '" + Connect.GetUser() + "';";
command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
MessageBox.Show("取消预约成功！");
}
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
ButtonBrush();
}
//点击事件区域
//===================================================================================================================
private void Button_Click(object sender, RoutedEventArgs e)
{
var button = sender as Button;
if (button.Background == System.Windows.Media.Brushes.Red)
{
MessageBox.Show("该座位已被预约！");
return;
}
if (!CanBook())
{
MessageBox.Show("你已预约另一位置，不能再次预约！");
return;
}
string name = button.Name;
string[] array = name.Split('_');
string row = array[1];
string column = array[2];
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
try
{
con.Open();
string cmd = "insert into seatbook values('" + row + "','" + column + "','" + Connect.GetUser() + "');";
command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
cmd = "select * from seatbook where x = '" + row + "' and y = '" + column + "'and UserId = '" + Connect.GetUser() + "';";
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
MessageBox.Show("预约成功！");
}
reader.Close();
}catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
ButtonBrush();
}
}//获得字符串实际长度
private void Show()
{
MySqlConnection con = Connect.Connection();
try
{
con.Open();
string sel = "select * from book;";
MySqlCommand command = new MySqlCommand(sel, con);
MySqlDataReader reader = command.ExecuteReader();
AddHead();
while (reader.Read())
{
string[] str = new string[5];
str[0] = reader["BookName"].ToString();
str[1] = reader["Writer"].ToString();
str[2] = reader["Page"].ToString();
str[3] = reader["Public"].ToString();
str[4] = reader["DefaultPrice"].ToString();
string sep1 = Formatting(str[0], 20);
string sep2 = Formatting(str[1], 20);
string sep3 = Formatting(str[2], 20);
string sep4 = Formatting(str[3], 20);
string sep5 = Formatting(str[4], 20);
string strsub = sep1 + sep2 + sep3 + sep4 + sep5;
this.list.Items.Add(strsub);
}
con.Close();
reader.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}//listbox初始化，显示数据库数据
//功能函数
//========================================================================================================
private void Init()
{
this.no1.Text = "";
this.no2.Text = "";
this.no3.Text = "";
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
string cmd = "select * from borrow where UserId = '" + Connect.GetUser() + "';";
int i = 0;
try
{
con.Open();
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
string bookname, writer;
TextBox tb;
while (reader.Read())
{
i++;
bookname = reader["BookName"].ToString().Trim();
writer = reader["Writer"].ToString().Trim();
string str1 = Formatting(bookname, 15);
string str2 = Formatting(writer, 15);
str2 = str2.TrimEnd('|').Trim();
string str = str1 + str2;
string name = "no" + i;
tb = this.FindName(name) as TextBox;
tb.Text = str;
}
i++;
for (; i <= 3; i++)
{
Button btn = this.FindName("btn_no" + i) as Button;
btn.IsEnabled = false;
}
reader.Close();
con.Close();
}catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}
}//检查是否有有关该用户的信息记录
private void SetValues()
{
DeleteTextChange();
string picturePath = "d:/LibraryResource/UserPicture/";//pack://SiteOfOrigin:,,,/
MySqlConnection con = Connect.Connection();
string cmd = string.Format("select * from usermessage where UserId = '{0}';", Connect.GetUser().ToString());
MySqlDataReader reader;
try
{
con.Open();
MySqlCommand command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
reader.Read();
this.NickName.Text = reader["NickName"].ToString();
this.Age.Text = reader["Age"].ToString();
this.College.Text = reader["College"].ToString();
this.Address.Text = reader["Address"].ToString();
this.Motto.Text = reader["Motto"].ToString();
this.Introduce.Text = reader["Introduce"].ToString();
string pictureName = reader["Picture"].ToString().Trim();//图片设置
if (pictureName != "" && pictureName != null)
{
picturePath += pictureName;
//this.Picture.Source = new BitmapImage(new Uri(picturePath, UriKind.Absolute));
setImageSource(picturePath);
}
else
{
this.Picture.Source = new BitmapImage(new Uri("pack://SiteOfOrigin:,,,/d:/libraryresource/Userpicture/defaultpic.jpg", UriKind.Absolute));
}
reader.Close();
} catch (MySqlException ex)
{
MessageBox.Show(ex.Message + "setvalues");
}
con.Close();
AddTextChange();
return;
}//设置所有文本框中的信息
}//判断是否被借走
private void canBorrow_Click(object sender, RoutedEventArgs e)//筛选未被借走的书籍
{
int index = list.Items.Count - 1;
MySqlConnection con = Connect.Connection();
try
{
MySqlDataReader reader;
con.Open();
while (true)
{
if (index < 2)
{
break;
}
string str = list.Items[index].ToString();
string[] arrary = str.Split('|');
string cmd = "select * from borrow where BookName = '" + arrary[0].Trim() + "' and Writer = '" + arrary[1].Trim() + "';";
MySqlCommand command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
list.Items.RemoveAt(index);
index--;
}
else
{
index--;
}
reader.Close();
}
con.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}
private void enter_Click(object sender, RoutedEventArgs e)
{
string pwd1 = getPassWord(this.pb1);
string pwd2 = getPassWord(this.pb2);
if (pwd1 == "" || pwd2 == "")
{
MessageBox.Show("不能为空！");
}
else if (pwd1 != pwd2)
{
MessageBox.Show("两次输入密码不同！");
pb1.Password = "";
pb2.Password = "";
}
else if (pwd1.Length < 8)
{
MessageBox.Show("输入密码过短！");
pb1.Password = "";
pb2.Password = "";
}
else if (JudgeEasility(pwd1))
{
MessageBox.Show("密码太简单！");
pb1.Password = "";
pb2.Password = "";
}
else
{
MySqlConnection con = Connect.Connection();
MySqlCommand command = new MySqlCommand();
command.Connection = con;
command.CommandText = "update login set PassWord = '******' where UserId = '" + Connect.GetUser() + "';";
con.Open();
command.ExecuteNonQuery();
con.Close();
MessageBox.Show("更改成功！");
this.Close();
}
}
//点击事件
//==========================================================================================================
private void ReturnBook(object sender, RoutedEventArgs e)
{
Button btn = sender as Button;
string name = btn.Name;
string[] array = name.Split('_');
name = array[1];
TextBox tb = this.FindName(name) as TextBox;
array = tb.Text.Split('|');
string bookname = array[0].Trim();
string writer = array[1].Trim();
MySqlConnection con = Connect.Connection();
MySqlCommand command;
MySqlDataReader reader;
string cmd = "delete from borrow where BookName = '" + bookname + "' and Writer = '" + writer + "' and UserId = '" + Connect.GetUser() + "';";
try
{
con.Open();
command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
cmd = "select * from borrow where BookName = '" + bookname + "' and Writer = '" + writer + "' and UserId = '" + Connect.GetUser() + "'; ";
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (!reader.HasRows)
{
MessageBox.Show("成功还书！");
}
Init();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}
private void btn2_Click(object sender, RoutedEventArgs e)
{
string User = this.user.Text.Trim();
string Pwd = GetPassword();
MySqlConnection con = Connect.Connection();
if (User == "" || Pwd == "")
{
this.message.Content = "用户名或密码不能为空.";
}
else
{
try
{
con.Open();
string cmdstr = "select * from login where UserId = '" + User + "' and Password = '******';";
MySqlCommand command = new MySqlCommand(cmdstr, con);
MySqlDataReader reader = command.ExecuteReader();
if (reader.HasRows)
{
MessageBox.Show("登录成功！");
UserId = User;
con.Close();
this.DialogResult = true;
}
else
{
this.message.Content = "用户名或密码错误.";
con.Close();
}
}
catch (MySqlException ex)
{
MessageBox.Show("数据库连接失败" + ex.Message);
}
}
}
//功能函数区域
//================================================================================================================
private void ButtonBrush()
{
MySqlConnection con = Connect.Connection();
MySqlDataReader reader;
MySqlCommand command;
try
{
con.Open();
string cmd = "";
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 5; j++)
{
cmd = "select * from seatbook where x = '" + (i + 1) + "' and y = '" + (j + 1) + "';";
string name = "G_" + (i + 1) + "_" + (j + 1);
Button btn = this.FindName(name) as Button;
command = new MySqlCommand(cmd, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
btn.Background = System.Windows.Media.Brushes.Red;
}
else
{
btn.Background = System.Windows.Media.Brushes.Green;
}
reader.Close();
}
}
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
}//绘制Button的背景色
private void Submit_Click(object sender, RoutedEventArgs e)
{
SetEnabledFalse();
MySqlConnection con = Connect.Connection();
MySqlCommand command;
TextBox textBox;
string mark = "";
while (true)
{
if (ChangeNum == 0)
{
MessageBox.Show("更新完成！");
break;
}
con.Open();
for (int i = 0; i < 6; i++)
{
if (Havechanged[i] != null && Havechanged[i] != "")
{
mark = Havechanged[i];
Havechanged[i] = null;
break;
}
}
textBox = this.FindName(mark) as TextBox;
string cmd = "update usermessage set " + textBox.Name.Trim() + " = '" + textBox.Text.ToString().Trim() + "' where UserId = '" + Connect.GetUser() + "';";
command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
con.Close();
ChangeNum--;
}
this.Change.IsEnabled = true;
Havechanged = new string[6];
ChangeNum = 0;
SetValues();
}
private void btn1_Click(object sender, RoutedEventArgs e)//注册按钮
{
string user = this.Id.Text.Trim();
string pwd1 = GetPassword1();
string pwd2 = GetPassword2();
if (user == "" || pwd1 == "" || pwd2 == "")
{
MessageBox.Show("不能为空！");
}
else if (user == "midpic" || user == "default" || user == "select" || user == "insert" || user == "update" || user == "user" || user == "delete" || user == "drop")
{
MessageBox.Show("不能以系统关键字为用户名！");
}
else if (pwd1 != pwd2)
{
MessageBox.Show("两次输入密码不同！");
Pwd1.Password = "";
Pwd2.Password = "";
}
else if (pwd1.Length < 8)
{
MessageBox.Show("输入密码过短！");
Pwd1.Password = "";
Pwd2.Password = "";
}
else if (JudgeEasility(pwd1))
{
MessageBox.Show("密码太简单！");
Pwd1.Password = "";
Pwd2.Password = "";
}
else
{
MySqlConnection con = Connect.Connection();
try
{
con.Open();
string check = string.Format("select * from login where UserId = '{0}';", user);
MySqlCommand command = new MySqlCommand(check, con);
MySqlDataReader reader = command.ExecuteReader();
if (reader.HasRows)
{
MessageBox.Show("已存在该用户名！");
Id.Text = "";
Pwd1.Password = "";
Pwd2.Password = "";
con.Close();
}
else
{
reader.Close();
string cmd = string.Format("insert into login values ('{0}','{1}');", user, pwd1);
command = new MySqlCommand(cmd, con);
command.ExecuteNonQuery();
string sel = string.Format("select * from login where UserId = '{0}' and Password = '******';", user, pwd1);
command = new MySqlCommand(sel, con);
reader = command.ExecuteReader();
if (reader.HasRows)
{
this.DialogResult = true;
MessageBox.Show("注册成功！");
con.Close();
}
else
{
MessageBox.Show("注册失败！");
con.Close();
}
}
}
catch (MySqlException ex)
{
MessageBox.Show("数据库连接失败" + ex.Message);
con.Close();
}
}
}
//点击事件
//==============================================================================================================================
private void SelectPic_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFile = new OpenFileDialog();//用来打开图片选择窗口
openFile.Filter = "JPEG|*.jpg";
openFile.DefaultExt = "jpg";
openFile.Multiselect = false;//不能多选
Image image = new Image();//将原本image的source储存起来;
image.Source = this.Picture.Source;
this.Picture.Source = null;//设置image的源文件为空;
if (openFile.ShowDialog() == true)
{
Computer computer = new Computer(); //computer类，先引入microsoft.visualBasic,再using device;
string path = "d:/libraryresource/Userpicture/";
bool ishave = false; //用来标记用户之前是否设置过图片;
//获取原图片文件
MySqlConnection con = Connect.Connection();
string cmd = "select * from usermessage where UserId = '" + Connect.GetUser() + "';";
MySqlCommand command = new MySqlCommand(cmd, con);
MySqlDataReader reader;
con.Open();
reader = command.ExecuteReader();
reader.Read();
if (reader["Picture"].ToString() != null && reader["Picture"].ToString().Trim() != "")
{
string pic = reader["Picture"].ToString().Trim();
computer.FileSystem.RenameFile(path + pic, "midpic.jpg");//把原文件名设置为 midpic.jpg
ishave = true;
}
con.Close();
reader.Close();
string type = System.IO.Path.GetExtension(openFile.FileName);
string newname = Connect.GetUser() + type;//设置图片新的名字,以用户名命名
System.IO.File.Copy(openFile.FileName, System.IO.Path.Combine(@path, System.IO.Path.GetFileName(openFile.FileName)));
string oldname = System.IO.Path.GetFileName(openFile.FileName);
////string oldpath = path + openFile.FileName;
////File.Move(oldpath, path + name);
string oldnamepath = path + oldname;
if (oldname != newname)
{
computer.FileSystem.RenameFile(oldnamepath, newname);
}
if (ishave == true)//如果之前有记录，不需要更新，图片的名字不变；如果没有，则向数据库插入对应的信息。
{
computer.FileSystem.DeleteFile(path + "midpic.jpg");
}
else
{
con.Open();
command.CommandText = "update usermessage set Picture = '" + newname + "' where UserId = '" + Connect.GetUser() + "';";
command.ExecuteNonQuery();
con.Close();
}
//pack://SiteOfOrigin:,,,/
setImageSource("d:/libraryresource/Userpicture/" + newname);
return;
}
else
{
this.Picture.Source = image.Source;
return;
}
}
}//向list1中加入图书数据
private void inquery_Click(object sender, RoutedEventArgs e)
{
string bookname = this.Bookname.Text.ToString().Trim();
string writer = this.Writer.Text.ToString().Trim();
string cmd = "";
MySqlConnection con = Connect.Connection();
if (bookname == "" && writer == "")
{
MessageBox.Show("请输入内容！");
return;
}
else if (bookname == "" && writer != "")
{
cmd = "select * from book where Writer like '%" + writer + "%";
}
else if (writer == "" && bookname != "")
{
cmd = "select * from book where BookName like '%" + bookname + "%";
}
else
{
cmd = "select * from book where BookName like '%" + bookname + "%' and Writer like '%" + writer + "%";
}
cmd = cmd + "';";
try
{
con.Open();
MySqlCommand command = new MySqlCommand(cmd, con);
MySqlDataReader reader = command.ExecuteReader();
list.Items.Clear();
AddHead();
string[] str = new string[5];
while (reader.Read())
{
str[0] = reader["BookName"].ToString();
str[1] = reader["Writer"].ToString();
str[2] = reader["Page"].ToString();
str[3] = reader["Public"].ToString();
str[4] = reader["DefaultPrice"].ToString();
string sep1 = Formatting(str[0], 20);
string sep2 = Formatting(str[1], 20);
string sep3 = Formatting(str[2], 20);
string sep4 = Formatting(str[3], 20);
string sep5 = Formatting(str[4], 20);
string strsub = sep1 + sep2 + sep3 + sep4 + sep5;
this.list.Items.Add(strsub);
}
reader.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message);
}
con.Close();
}