// 登陆
private void btn_login_Click(object sender, EventArgs e)
{
home_form anotherForm = new home_form();
//this.Hide();
anotherForm.Show();
//Application.ExitThread();
string connecStr = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;
// Console.WriteLine(strConnection);
// string connecStr = "server=192.168.25.182;port=3307;database=test;user=root;password=123456";
MySqlConnection conn = new MySqlConnection(connecStr);
NewMethod(conn);
}
//登录
private void Btn_login_Click_1(object sender, EventArgs e)
{
string my_usernmae = txt_name.Text;
string my_pwd = my_public.Get16MD5One(txt_pwd.Text);
if (txt_name.Text == "" || txt_pwd.Text == "")
{
MessageBox.Show("账号和密码不能为空！", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
return;
}
string connecStr = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;
// Console.WriteLine(strConnection);
// string connecStr = "server=192.168.25.182;port=3307;database=test;user=root;password=123456";
MySqlConnection conn = new MySqlConnection(connecStr);
try
{
conn.Open();
string sql_select = string.Format("select count(*) from user where user_name = '{0}' and pwd = '{1}'", my_usernmae, my_pwd);
MySqlCommand mycmd = new MySqlCommand(sql_select, conn);
Object result = mycmd.ExecuteScalar();//执行查询，并返回查询结果集中第一行的第一列。所有其他的列和行将被忽略。select语句无记录返回时，ExecuteScalar()返回NULL值
if (Convert.ToInt32(result) == 0)
{
MessageBox.Show("用户名或密码错误！", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
return;
}
home_form home_Form = new home_form();
this.Hide();
home_Form.Show();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
MessageBox.Show("数据库服务异常！", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
}
finally
{
conn.Close();
}
}