使用c#完成一個聊天工具的學習過程 2
阿新 • • 發佈：2018-12-20
整改之前的程式碼，選擇mvc模式。
<Window x:Class="ChatTools.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:ChatTools" mc:Ignorable="d" Title="聊天工具" Height="450" Width="700"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="127*"/> <ColumnDefinition Width="220*"/> </Grid.ColumnDefinitions> <Label Content="賬號 ：" HorizontalAlignment="Left" Margin="91,231,0,0" VerticalAlignment="Top"/> <Label Content="密碼 ：" HorizontalAlignment="Left" Margin="91,292,0,0" VerticalAlignment="Top"/> <Button Content="登入" HorizontalAlignment="Left" Margin="242,360,0,0" VerticalAlignment="Top" Width="197" Click="Button_Click" Height="26" Grid.ColumnSpan="2"/> <TextBox Name="user" Height="26" VerticalContentAlignment="Center" Margin="185,231,0,0" Width="300" Grid.ColumnSpan="2" AutomationProperties.Name="user" VerticalAlignment="Top" HorizontalAlignment="Left"/> <PasswordBox Name="passwd" VerticalContentAlignment="Center" HorizontalAlignment="Left" Height="26" Margin="185,292,0,0" VerticalAlignment="Top" Width="300" Grid.ColumnSpan="2" AutomationProperties.Name="passwd"/> <Image Height="199" Source="image/750.jpg" Grid.ColumnSpan="2" UseLayoutRounding="False" VerticalAlignment="Top" Stretch="UniformToFill" /> <CheckBox Grid.ColumnSpan="2" Content="記住密碼" HorizontalAlignment="Left" Margin="200,340,0,0" VerticalAlignment="Top"/> <CheckBox Content="自動登入" HorizontalAlignment="Left" Margin="130.4,340,0,0" VerticalAlignment="Top" Grid.Column="1"/> <Label Content="" Name ="failed" HorizontalAlignment="Left" Margin="185,266,0,0" VerticalAlignment="Top" Grid.ColumnSpan="2" Width="155"/> <Button Content="註冊賬號" Grid.Column="1" HorizontalAlignment="Left" Margin="289.4,237,0,0" VerticalAlignment="Top" Width="75"/> <Button Content="忘記密碼？" Grid.Column="1" HorizontalAlignment="Left" Margin="289.4,292,0,0" VerticalAlignment="Top" Width="75"/> </Grid> </Window>
using ChatTools.publicFile; using ChatTools.models; using ChatTools.views; using ChatTools.service; #region systemusing using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using MySql.Data.MySqlClient; #endregion namespace ChatTools { /// <summary> /// MainWindow.xaml 的互動邏輯 /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } #region 使用者登入 private void Button_Click(object sender, RoutedEventArgs e) { //是否查詢到對應記錄 0使用者不存在 1密碼錯誤 2訪問成功 int flag = 0; Console.WriteLine("使用者" + user.Text + "請求登入"); //宣告user物件 User u1 = new User(); u1.setUid(int.Parse(user.Text)); u1.setUpasswd(passwd.Password); LoginService login = new LoginService(); flag = login.Login(u1); if (flag == 0) { user.Text = ""; passwd.Password = ""; failed.Content = "賬號不存在"; } else if (flag == 1) { passwd.Password = ""; failed.Content = "密碼錯誤，請重新輸入！"; Console.WriteLine("使用者" + user.Text + "登入失敗"); } else if (flag == 2) { Index index1 = new Index(); index1.Show(); this.Close(); Console.WriteLine("使用者" + user.Text + "登入成功"); } else { Console.WriteLine("使用者" + user.Text + "登入失敗"); } } #endregion } }
登入服務實現
using ChatTools.models; using ChatTools.publicFile; using ChatTools.views; using MySql.Data.MySqlClient; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ChatTools.service { class LoginService { public int Login(User user) { //是否查詢到對應記錄 int flag = 0; //當賬號和密碼都不為空 if (user.getUid() != 0 && user.getUpasswd() != "") { string sql = "select * from userinfo"; //sql語句 //資料庫連線物件 MySqlConnection objConn = DBConn.GetConn(); //開啟資料庫連線 objConn.Open(); //資料庫操作變數 MySqlCommand sc = objConn.CreateCommand(); //傳入sql語句 sc.CommandText = sql; //執行查詢、得到結果集 MySqlDataReader myDR = sc.ExecuteReader(); while (myDR.Read()) //迴圈讀取結果集，+1 { //登入成功 if (myDR["uid"].ToString() == user.getUid().ToString() && myDR["upasswd"].ToString() == user.getUpasswd()) { //把使用者名稱值賦給User物件 user.setUname(myDR["uname"].ToString()); flag = 2; } //密碼錯誤 if (myDR["uid"].ToString() == user.getUid().ToString() && myDR["upasswd"].ToString() != user.getUpasswd()) { flag = 1; } } } else { flag = 0; } return flag; } } }
資料庫操作類
using MySql.Data.MySqlClient;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ChatTools.publicFile
{
class DBConn
{
#region 定義連線變數
public static String strConnRead = "Password=#qwer1234#;User ID=root;Initial Catalog=myqq;Data Source=127.0.0.1;Pooling=true;Connection Lifetime=300";
public static String strConnEdit = "Password=#qwer1234#;User ID=root;Initial Catalog=myqq;Data Source=127.0.0.1;Pooling=true;Connection Lifetime=300";
public static String strMySql = "127.0.0.1";
public static string getStrConn(){
return strConnRead;
}
public static string GetSqlServer()
{
return strMySql;
}
#endregion
#region 構造和解構函式
//建構函式,初始化物件
public DBConn()
{
}
/// 解構函式,釋放物件資源
~DBConn()
{
//objConn.Dispose();
}
#endregion
#region 獲取一個數據連線物件
public static MySqlConnection GetConn()
{
MySqlConnection objConn;
objConn = new MySqlConnection(strConnRead);
return objConn;
}
#endregion
}
}
model層
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
namespace ChatTools.models
{
class User
{
private int uid; //賬號
private string uname; //使用者名稱
private String upasswd; //密碼
#region getter and setter
public int getUid()
{
return this.uid;
}
public string getUname()
{
return this.uname;
}
public string getUpasswd()
{
return this.upasswd;
}
public void setUid(int uid)
{
this.uid = uid;
}
public void setUname(string uname)
{
this.uname = uname;
}
public void setUpasswd(string upasswd)
{
this.upasswd = upasswd;
}
#endregion
public string toString()
{
return this.uid + this.uname + this.upasswd;
}
#region
public void sendHostInfoToServer()
{
string hostIp;
string hostName;
string dateTime;
try
{
hostName = Dns.GetHostName(); //得到主機名
IPHostEntry IpEntry = Dns.GetHostEntry(hostName);
for (int i = 0; i < IpEntry.AddressList.Length; i++)
{
//從IP地址列表中篩選出IPv4型別的IP地址
//AddressFamily.InterNetwork表示此IP為IPv4,
//AddressFamily.InterNetworkV6表示此地址為IPv6型別
if (IpEntry.AddressList[i].AddressFamily == AddressFamily.InterNetwork)
{
hostIp = IpEntry.AddressList[i].ToString();
}
}
dateTime = DateTime.Now.ToString();
}
catch (Exception ex)
{
MessageBox.Show("獲取本機IP出錯:" + ex.Message);
}
}
#endregion
}
}