protected void btnChangePwd_Click(object sender, EventArgs e)
{
SysAdmin user = new SysAdmin();
user = (SysAdmin)Session["Currentuser"];
string newpwd = txtNewPwd.Text.Trim();
string oldpwd = txtOldPwd.Text.Trim();
try
{
if (user.LoginPwd != oldpwd)
{
ltaMsg.Text = "<script>alert('原密码错误！')</script>";
}
else
{
AdminServices.ChangePwd(user, newpwd);
Session["Currentuser"] = user;
ltaMsg.Text = "<script>alert('修改成功！');location='../Default.aspx'</script>";
}
}
catch (Exception ex)
{
ltaMsg.Text = "<script>alert('" + ex.Message + "')</script>";
throw ex;
}
}
protected void ibtnLogin_Click(object sender, ImageClickEventArgs e)
{
//[1]Ecapusilate login information
SysAdmin objAdmin = new SysAdmin()
{
LoginId = Convert.ToInt32(this.txtUserId.Text.Trim()),
LoginPwd = this.txtPwd.Text.Trim()
};
//[2]Using Data Accessing class to query user information
try
{
objAdmin = new AdminService().AdminLogin(objAdmin);
if (objAdmin == null)
{
this.ltaInfo.Text = "<script>alert('User name or password is wrong')</script>";
}
else
{
Session["CurrentUser"] = objAdmin;
Response.Redirect("~/Default.aspx", false);
}
}
catch (Exception ex)
{
this.ltaInfo.Text = "<script>alert('" + ex.Message + "')</script>";
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Session["CurrentUser"] == null)
{
Response.Redirect("~/AdminLogin.aspx");
}
else
{//If user login successfully it will display user information
SysAdmin objAdmin = (SysAdmin)Session["CurrentUser"];
this.ltaUserName.Text = "Welcome back: " + objAdmin.AdminName;
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Session["Currentuser"] == null)
{
Response.Redirect("~/AdminLogin.aspx");
}
else
{
SysAdmin user = (SysAdmin)Session["Currentuser"];
ltaUserName.Text = "欢迎您：" + user.AdminName;
}
}
private void CheckLoginInfo()
{
if (File.Exists("sysAdmins.sys"))//如果本地有保存登录信息
{
admin = adminService.ReadLoginInfo();
if (Convert.ToDateTime(admin.LastLoginTime).AddDays(10) > DateTime.Now)
{
//如果登录信息没有失效,则显示登录信息
this.txtLoginId.Text = admin.LoginId.ToString();
this.txtLoginPwd.Text = admin.LoginPwd;
this.ckbSavePwd.Checked = true;
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
//判断用户是否登录
if (Session["CurrentUser"] == null)
{
Response.Redirect("~/AdminLogin.aspx");
}
else
{
//显示登录用户信息
SysAdmin objAdmin = (SysAdmin)Session["CurrentUser"];
this.ltaUserName.Text = "欢迎您： " + objAdmin.AdminName;
}
}
/// <summary>
/// 修改管理员密码
/// </summary>
/// <param name="objAdmin"></param>
/// <returns></returns>
public int ModifyPwd(SysAdmin objAdmin)
{
string sql = "update Admins set LoginPwd='{0}' where LoginId={1}";
sql = string.Format(sql, objAdmin.LoginPwd, objAdmin.LoginId);
try
{
return(SQLHelper.Update(sql));
}
catch (SqlException)
{
throw new Exception("应用程序和数据库连接出现问题！");
}
catch (Exception ex)
{
throw ex;
}
}
protected void ibtnLogin_Click(object sender, ImageClickEventArgs e)
{
int LoginId = Convert.ToInt32(txtUserId.Text);
String LoginPwd = Convert.ToString(txtPwd.Text).Trim();
SysAdmin user = new SysAdmin();
user.LoginId = LoginId;
user.LoginPwd = LoginPwd;
user = AdminServices.LoginCheck(user);
if (user == null)
{
ltaInfo.Text = "<script type='text/javascript'> alert('账号或密码错误，请重试！')</script>";
}
else
{
Session["CurrentUser"] = user;
Response.Redirect("~/Default.aspx");
}
}
protected void btnChangePwd_Click(object sender, EventArgs e)
{
//Decide whehter original password is right
SysAdmin objAdmin = (SysAdmin)Session["CurrentUser"];
if (objAdmin.LoginPwd != this.txtOldPwd.Text.Trim())
{
this.ltaMsg.Text = "<script>alert('Original password isn not right')</script>";
//this.ltaMsg.Text = "<script>alert('hahaha')</script>";
return;
}
//Encapusilate new password
objAdmin.LoginPwd = this.txtNewPwd.Text.Trim();
//Use backend method to change password
try
{
new AdminService().ModifyPwd(objAdmin);
this.ltaMsg.Text = "<script>alert('Password is modified successfully');location='../Default.aspx'</script>";
}
catch (Exception ex)
{
this.ltaMsg.Text = "<script>alert('" + ex.Message + "')";
}
}
//用户登录
private void btnLogin_Click(object sender, EventArgs e)
{
//int a = 100;
//Console.WriteLine(a);
//SysAdmin admin1 = new SysAdmin();
//Console.WriteLine(admin1.GetType().ToString());
//return;
//【1】数据验证
if (this.txtLoginId.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录账号！", "登录提示");
this.txtLoginId.Focus();
return;
}
if (this.txtLoginPwd.Text.Trim().Length == 0)
{
MessageBox.Show("请输入登录密码！", "登录提示");
this.txtLoginPwd.Focus();
return;
}
//验证登录账号必须是数字（可以使用正则表达式，只需要了解，会用即可，如果感兴趣，可以自己研究怎么写）
//【2】对象封装（把用户输入的数据封装为对象，用对象属性承载数据）
admin = new SysAdmin
{
LoginId = Convert.ToInt32(this.txtLoginId.Text.Trim()),
LoginPwd = this.txtLoginPwd.Text.Trim()
};
//【3】调用后台数据访问方法验证
try
{
admin = adminService.AdminLogin(admin);
}
catch (Exception ex)
{
MessageBox.Show("用户登录发生异常！具体错误：" + ex.Message, "登录错误");
return;
}
if (admin != null)//如果账号和密码是正确的
{
//【1】验证账号状态是否允许
if (admin.AdminStatus == 1)
{
//【2】把当前登录用户的信息保存起来（后面有可能用到）
Program.currentAdmin = admin;
//【3】如果有权限，那么可以在这个根据登录信息查询权限...(如果数据访问类中写了，此处就不要写，建议大家写到这个地方)
//【4】判断用户是否需要记住密码和登录账号
if (this.ckbSavePwd.Checked)
{
admin.LastLoginTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm");
}
else //如果没有选中，有两种方式：1.可以删除保存的文件 2.在当前日期前面减去大于10的天数
{
//比如是2020-12-30
admin.LastLoginTime = DateTime.Now.AddDays(-11).ToString("yyyy-MM-dd HH:mm");
}
adminService.SaveLoginInfo(admin);//保存登录信息
//【5】写入登录日志...(什么时候登录的，登录的IP地址是什么，登录名是谁...我们在课程8 就有讲解...)
//【6】关闭登录窗体
this.DialogResult = DialogResult.OK;
this.Close();
}
else
{
MessageBox.Show("当前用户为禁止登录状态，请联系管理员！", "登录提示");
}
}
else
{
MessageBox.Show("用户名或密码错误！", "登录提示");
}
}