private void store_button_Click(object sender, EventArgs e)
{
String username = this.store_login1.Text;
String password = this.store_login2.Text;
Database2 db = new Database2();
MySqlConnection conn = db.getConn();
if (username.Equals("") || password.Equals(""))
{
MessageBox.Show("账号或密码为空");
}
else
{
try
{
conn.Open();
String sql1 = String.Format("select * from user_store where username= '******' ", username);
MySqlCommand comm2 = new MySqlCommand(sql1, conn);
if (Convert.ToInt32(comm2.ExecuteScalar()) > 0)
{
String sql = String.Format("select username,password from user_store where username = '******' limit 1",
username);
MySqlCommand comm1 = new MySqlCommand(sql, conn);
MySqlDataReader reader = comm1.ExecuteReader();
while (reader.Read())
{
String username1 = reader[0].ToString();
String password1 = reader[1].ToString();
if (username1 != null && password.Equals(password1))
{
MessageBox.Show("登录成功");
}
else
{
MessageBox.Show("密码错误,请重新输入");
}
}
reader.Close();
}
else
{
MessageBox.Show("账户不存在,请注册");
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
MessageBox.Show(exception.Message.ToString());
}
finally
{
conn.Close();
}
}
}
private void 店铺注册_button_Click(object sender, EventArgs e)
{
String username = this.store_register_box1.Text;
String password = this.store_register_box2.Text;
Database2 db2 = new Database2();
MySqlConnection conn = db2.getConn();
if (username.Equals("") || password.Equals(""))
{
MessageBox.Show("账号密码为空");
}
else
{
try
{
conn.Open();
String sql1 = String.Format("select * from `c#_store`.user_store where username= '******'", username);
MySqlCommand comm1 = new MySqlCommand(sql1, conn);
String sql2 = String.Format("insert into `c#_store`.user_store (username,password) values ('{0}','{1}')", username, password);
MySqlCommand comm2 = new MySqlCommand(sql2, conn);
if (Convert.ToInt32(comm1.ExecuteScalar()) > 0)
{
MessageBox.Show("账号已经注册,请登录");
Form1.form1.登录ToolStripMenuItem_Click(null, null);
}
else
{
comm2.ExecuteNonQuery();
db2.insert("注册成功");
MessageBox.Show("注册成功");
Form1.form1.登录ToolStripMenuItem_Click(null, null);
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
finally
{
conn.Close();
}
}
}