public static Customer getCustomerByAccount(string account)
{
SqlConnection conn = DBConnection.getConnection();
try
{
conn.Open();
}
catch (SqlException e)
{
throw e;
}
Customer user = null;
try
{
Console.WriteLine("初始化查询参数"+account);
string sql = "SELECT [account],[password],[gender],[starttime],[availableday],[name] FROM available_user WHERE account=@account";
Console.WriteLine("连接开启");
using (SqlCommand cmd = new SqlCommand(sql, conn))
{
cmd.Parameters.AddWithValue("@account", account);
using (SqlDataReader dr = cmd.ExecuteReader())
{
Console.WriteLine("结果：" + dr.HasRows);
if (dr.Read())
{
string name = Convert.ToString(dr["name"]);
string password = Convert.ToString(dr["password"]);
string gender = Convert.ToString(dr["gender"]);
DateTime starttime = Convert.ToDateTime(dr["starttime"]);
int availableday = Convert.ToInt32(dr["availableday"]);
user = new Customer();
user.Account = account;
user.Name = name;
user.Password = password;
user.Gender = gender;
user.StartTime = starttime;
user.AvailableDay = availableday;
}
dr.Close();
}
}
Console.WriteLine(user);
}
catch (Exception ex)
{
throw ex;
}
finally
{
DBConnection.closeConnection(conn);
}
return user;
}
private void showCustomer(Customer c)
{
if (c != null)
{
this.hotel_search_res_account.BeginInvoke(new System.EventHandler(UpdateAccount), c.Account);
this.hotel_search_res_name.BeginInvoke(new System.EventHandler(UpdateTime), c.Name);
this.hotel_search_res_sex.BeginInvoke(new System.EventHandler(UpdateSex), c.Gender);
this.hotel_search_res_status.BeginInvoke(new System.EventHandler(UpdateStaute), "注册时间为:" + c.StartTime+"\r\n有效时间是"+c.AvailableDay+"天");
((HotelForm)this.MdiParent).UpdateState("查询成功!");
}
else
{
((HotelForm)this.MdiParent).ShowSearchRes("没有该用户注册信息!");
}
}
internal static void RemoveCustomerDao(Customer u)
{
try {
InsertUser("unavailable_user", u);
}catch(Exception e)
{
Console.WriteLine(e.Message);
}
if (u == null)
{
return;
}
string sql = "DELETE FROM available_user WHERE account=@account";
SqlConnection con = DBConnection.getConnection();
try
{
Console.WriteLine("初始化删除参数");
con.Open();
Console.WriteLine("连接开启");
using (SqlCommand cmd = new SqlCommand(sql, con))
{
cmd.Parameters.AddWithValue("@account", u.Account);
if (cmd.ExecuteNonQuery() <= 0)
{
throw new Exception("移除失效用户失败!");
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
DBConnection.closeConnection(con);
}
}
private static void InsertUser(string TABLE_NAME, Customer user)
{
if (TABLE_NAME == null || user == null)
{
return;
}
SqlConnection con = DBConnection.getConnection();
try
{
Console.WriteLine("初始化" + TABLE_NAME + "插入参数");
con.Open();
string sql = "INSERT INTO " + TABLE_NAME + "(account,password, gender, starttime, availableday, name)"
+ " VALUES(@account,@password,@gender,@starttime,@availableday,@name)";
using (SqlCommand cmd = new SqlCommand(sql, con))
{
cmd.Parameters.AddWithValue("@account", user.Account);
cmd.Parameters.AddWithValue("@passowrd", user.Password);
cmd.Parameters.AddWithValue("@gender", user.Gender);
cmd.Parameters.AddWithValue("@starttime", user.StartTime);
cmd.Parameters.AddWithValue("@availableday", user.AvailableDay);
cmd.Parameters.AddWithValue("@name", user.Name);
if (cmd.ExecuteNonQuery() <= 0)
{
throw new Exception("插入失败!");
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.GetBaseException());
throw ex;
}
finally
{
DBConnection.closeConnection(con);
}
throw new Exception("插入成功!");
}
internal static void InsertCustomer(Customer c)
{
// 登记新用户
if (c == null)
{
return;
}
Console.WriteLine("插入新成员");
try {
InsertUser("available_user", c);
}catch(Exception e)
{
throw e;
}
}
internal static List<Customer> GetAvailableUser()
{
SqlConnection con = DBConnection.getConnection();
List<Customer> users = new List<Customer>();
try
{
Console.WriteLine("初始化查询参数");
con.Open();
string sql = "SELECT [account],[password],[gender],[starttime],[availableday],[name] FROM available_user";
Console.WriteLine("连接开启");
using (SqlCommand cmd = new SqlCommand(sql, con))
{
using (SqlDataReader dr = cmd.ExecuteReader())
{
Console.WriteLine("结果：" + dr.HasRows);
while (dr.Read())
{
string name = Convert.ToString(dr["name"]);
string account = Convert.ToString(dr["account"]);
string password = Convert.ToString(dr["password"]);
string gender = Convert.ToString(dr["gender"]);
DateTime starttime = Convert.ToDateTime(dr["starttime"]);
int availableday = Convert.ToInt32(dr["availableday"]);
Customer user = new Customer();
user.Account = account;
user.Name = name;
user.Password = password;
user.Gender = gender;
user.StartTime = starttime;
user.AvailableDay = availableday;
users.Add(user);
}
dr.Close();
}
}
Console.WriteLine(users);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
DBConnection.closeConnection(con);
}
return users;
}
