C# 实现简单仿QQ登陆注册功能
闲来没事，想做一个仿QQ登陆注册的winform，于是利用工作之余，根据自己的掌握和查阅的资料，历时4天修改完成，新手水平，希望和大家共同学习进步，有不同见解希望提出！
废话不多说，进入正题：
先来看看我绘制的界面：
运用的CSkin控件完成的绘制，cskin和vs自带的控件其实差别不大，只是cskin美化更好一点，此外，cskin的验证码控件（skincode）很不错
再来看看代码：
public partial class Login : CCSkinMain
{
public Login()
{
InitializeComponent();
//ControlBox = false;
//取消最大化
MaximizeBox = false;
panel1.Visible = false;
txtName.SkinTxt.TextChanged += SkinTxt_TextChanged;
connectString = @"Data Source=E:\Works\Visual Studio 2017\Projects\SuiBianWanWan\SuiBianWanWan\bin\Debug\suibianwanwan.db;Pooling=true;FailIfMissing=false";
conn = new SQLiteConnection(connectString);
conn.Open();
}
private void SkinTxt_TextChanged(object sender, EventArgs e)
{
txtPassWord.Text = "";
skinCheckBox1.Checked = false;
skinCheckBox2.Checked = false;
}
string connectString = null;
SQLiteConnection conn = null;
//获取Configuration对象
//这里得到的是exe.config文件的内容，不是app.config
Configuration config = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath);
string name = "";
string passWord = "";
string sign1 = "";
string sign2 = "";
string pic = "";
//根据进行的设置更新config保存的数据
public void AccessAppSetting(string name,string passsWord,string sign1,string sign2,string pic)
{
//删除<add>元素
config.AppSettings.Settings.Remove("name");
config.AppSettings.Settings.Remove("passWord");
config.AppSettings.Settings.Remove("sign1");
config.AppSettings.Settings.Remove("sign2");
config.AppSettings.Settings.Remove("pic");
//增加<add>元素
config.AppSettings.Settings.Add("name", name);
config.AppSettings.Settings.Add("passWord", passsWord);
config.AppSettings.Settings.Add("sign1",sign1);
config.AppSettings.Settings.Add("sign2", sign2);
config.AppSettings.Settings.Add("pic", pic);
//一定要记得保存，写不带参数的config.save()也可以
config.Save(ConfigurationSaveMode.Modified);
//刷新，否则程序读取的还是之前的值（可能已经装进内存）
ConfigurationManager.RefreshSection("appSettings");
}
//密码加密
public string getMD5(string s)
{
MD5 mD5 = MD5.Create();
byte[] buffer = Encoding.GetEncoding("gbk").GetBytes(s);
byte[] Md5Buffer = mD5.ComputeHash(buffer);
string str = "";
for (int i = 0; i < Md5Buffer.Length; i++)
{
str = str + Md5Buffer[i].ToString();
}
return str;
}
private void Form1_Load(object sender, EventArgs e)
{
//重绘头像框 变圆形 picturebox
GraphicsPath gp = new GraphicsPath();
gp.AddEllipse(skinPictureBox1.ClientRectangle);
Region region = new Region(gp);
skinPictureBox1.Region = region;
gp.Dispose();
region.Dispose();
name = config.AppSettings.Settings["name"].Value;
passWord = config.AppSettings.Settings["passWord"].Value;
sign1 = config.AppSettings.Settings["sign1"].Value;
sign2 = config.AppSettings.Settings["sign2"].Value;
pic = config.AppSettings.Settings["pic"].Value;
if (!string.IsNullOrEmpty(name))
{
txtName.Text = name;
txtPassWord.Text = passWord;
skinPictureBox1.ImageLocation = pic;
skinCheckBox1.Checked = sign1.Trim() == "1" ? true : false;
skinCheckBox2.Checked = sign2.Trim() == "2" ? true : false;
}
if (skinCheckBox1.Checked)
btnLogin_Click(null,null);
}
private void btnLogin_Click(object sender, EventArgs e)
{
//登录验证
SQLiteCommand cmd = new SQLiteCommand();
cmd.Connection = conn;
cmd.CommandText = "select * from userMessage where username =" + txtName.Text;
try
{
SQLiteDataReader dr = cmd.ExecuteReader();
DataTable dt = new DataTable();
dt.Load(dr);
string username = dt.Rows[0]["username"].ToString();
string password = dt.Rows[0]["password"].ToString();
if (string.IsNullOrEmpty(txtName.Text))
{
skinLabel6.Visible = true;
}
else if (string.IsNullOrEmpty(txtPassWord.Text))
{
skinLabel7.Visible = true;
}
else
{
if (skinCheckBox2.Checked && sign2 == "")
{
if (getMD5(txtPassWord.Text) == password)
{
MessageBoxEx.Show("登陆成功");
if(skinCheckBox1.Checked)
AccessAppSetting(txtName.Text, getMD5(txtPassWord.Text), "1", "2", skinPictureBox1.ImageLocation);
else
AccessAppSetting(txtName.Text, getMD5(txtPassWord.Text), "", "2", skinPictureBox1.ImageLocation);
}
else
MessageBoxEx.Show("用户名或密码错误，请重新登陆");
}
else if (!skinCheckBox2.Checked && sign2 == "")
{
if(getMD5(txtPassWord.Text) == password)
{
MessageBoxEx.Show("登陆成功");
AccessAppSetting(txtName.Text, "", "", "", skinPictureBox1.ImageLocation);
}
else
MessageBoxEx.Show("用户名或密码错误，请重新登陆");
}
else if(sign2 != "" && skinCheckBox2.Checked)
{
if(txtName.Text == name && txtPassWord.Text == password)
{
MessageBoxEx.Show("登陆成功");
if(skinCheckBox1.Checked)
AccessAppSetting(txtName.Text, txtPassWord.Text, "1", "2", skinPictureBox1.ImageLocation);
else
AccessAppSetting(txtName.Text, txtPassWord.Text, "", "2", skinPictureBox1.ImageLocation);
}
else if(txtName.Text != name && getMD5(txtPassWord.Text) == password)
{
MessageBoxEx.Show("登陆成功");
if(skinCheckBox1.Checked)
AccessAppSetting(txtName.Text, getMD5(txtPassWord.Text), "1", "2", skinPictureBox1.ImageLocation);
else
AccessAppSetting(txtName.Text, getMD5(txtPassWord.Text), "", "2", skinPictureBox1.ImageLocation);
}
else
MessageBoxEx.Show("用户名或密码错误，请重新登陆");
}
else if (sign2 != "" && !skinCheckBox2.Checked)
{
if (txtName.Text == name && txtPassWord.Text == password)
{
MessageBoxEx.Show("登陆成功");
AccessAppSetting(txtName.Text, "", "", "", skinPictureBox1.ImageLocation);
}
else if (txtName.Text != name && getMD5(txtPassWord.Text) == password)
{
MessageBoxEx.Show("登陆成功");
AccessAppSetting(txtName.Text, "", "", "2", skinPictureBox1.ImageLocation);
}
else
MessageBoxEx.Show("用户名或密码错误，请重新登陆");
}
}
}
catch (Exception)
{
MessageBoxEx.Show("用户名不存在，请前往注册");
txtName.Text = "";
txtPassWord.Text = "";
skinCheckBox1.Checked = false;
skinCheckBox2.Checked = false;
}
}
//关于焦点的一些处理
private void Form1_Click(object sender, EventArgs e)
{
panel1.Visible = false;
if (!string.IsNullOrEmpty(txtName.Text))
{
skinLabel6.Visible = false;
}
if (!string.IsNullOrEmpty(txtPassWord.Text))
{
skinLabel7.Visible = false;
}
}
private void txtPassWord_MouseEnter(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtName.Text))
{
skinLabel6.Visible = false;
}
}
private void txtName_Validated(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtName.Text))
{
skinLabel6.Visible = false;
}
}
private void txtPassWord_Validated(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtPassWord.Text))
{
skinLabel7.Visible = false;
}
}
//自动登录
private void skinCheckBox1_CheckedChanged(object sender, EventArgs e)
{
if (skinCheckBox1.Checked==true)
{
skinCheckBox2.Checked = true;
}
}
//在线状态下拉实现
private void btnState_Click(object sender, EventArgs e)
{
panel1.Visible = true;
}
private void ToolStripMenuItem0_Click(object sender, EventArgs e)
{
btnState.BaseColor = Color.Green;
panel1.Visible = false;
}
private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
btnState.BaseColor = Color.Red;
panel1.Visible = false;
}
private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
btnState.BaseColor = Color.Gray;
panel1.Visible = false;
}
//换头像
private void skinPictureBox1_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "选择头像";
ofd.Multiselect = false;
ofd.InitialDirectory = @"E:\";
ofd.Filter = "图片|*.jpg";
ofd.ShowDialog();
string path = ofd.FileName;
skinPictureBox1.ImageLocation = path;
}
//注册页面
private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Regist regist = new Regist();
Hide();
regist.Show();
}
private void Login_FormClosed(object sender, FormClosedEventArgs e)
{
Application.Exit();
}
}
public partial class Regist : CCSkinMain
{
public Regist()
{
InitializeComponent();
MaximizeBox = false;
connectString = @"Data Source=E:\Works\Visual Studio 2017\Projects\SuiBianWanWan\SuiBianWanWan\bin\Debug\suibianwanwan.db;Pooling=true;FailIfMissing=false";
conn = new SQLiteConnection(connectString);
conn.Open();
}
string connectString = null;
SQLiteConnection conn = null;
//密码加密
public string getMD5(string s)
{
MD5 mD5 = MD5.Create();
byte[] buffer = Encoding.GetEncoding("gbk").GetBytes(s);
byte[] Md5Buffer = mD5.ComputeHash(buffer);
string str = "";
for (int i = 0; i < Md5Buffer.Length; i++)
{
str = str + Md5Buffer[i].ToString();
}
return str;
}
private void btnRegist_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtName.Text))
{
skinLabel6.Visible = true;
}
if (string.IsNullOrEmpty(txtPassWord.Text))
{
skinLabel4.Visible = true;
}
string skinCode = skinCode1.CodeStr;
if (txtCheck.Text == skinCode)
{
MessageBoxEx.Show("恭喜你注册成功！");
Hide();
Login login = new Login();
login.Show();
}
else
{
MessageBoxEx.Show("验证码错误，请重新输入");
}
try
{
SQLiteCommand cmd = new SQLiteCommand();
cmd.Connection = conn;
string password = getMD5(txtPassWord.Text);
cmd.CommandText = "insert into userMessage values ('" + txtName.Text + "','" + password + "','" + txtPhone.Text + "')";
cmd.ExecuteNonQuery();
}
catch (Exception)
{
MessageBoxEx.Show("用户名已存在");
}
}
private void txtName_Validated(object sender, EventArgs e)
{
if(!string.IsNullOrEmpty(txtName.Text))
skinLabel6.Visible = false;
else
skinLabel6.Visible = true;
}
private void txtPassWord_Validated(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtPassWord.Text))
skinLabel4.Visible = false;
else
skinLabel4.Visible = true;
}
private void txtPhone_Validated(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtPhone.Text))
skinLabel5.Visible = false;
else
skinLabel5.Visible = true;
}
private void Regist_FormClosed(object sender, FormClosedEventArgs e)
{
Login login = new Login();
login.Show();
}
}
这里说一下数据库我用的SQLite，在此之前我也没有用过sqlite数据库，只知道是文件型数据库，我也是边学边用，发现其实挺好用的，十分方便，我用数据库可视化工具是SQLite Expert Personal，这里提一下，用sqlite数据库进行建表时，针对字符串类型最好用text类型，不要用varchar
最后，说一下我记住密码的方式，我用的是利用App.config 配置文件保存密码的方式来记录的，在winform加载的时候去读取config配置文件，判断是否记住了密码
好了，大概就是这些吧，希望给有兴趣的你提供了帮助，也欢迎大家一起探讨！！
