基于WPF+Sqlite开发抽奖软件【内附源码】

在很早之前,就想过开发一款抽奖软件,却一直没有实际去做,最近经过一段时间的准备,终于开发出了一款基于WPF+Sqlite版的抽奖软件,包括客户端和管理端。本项目主要是为了熟悉WPF开发流程,仅供学习分享使用,如有不足之处,还请指正。

 

涉及知识点

 

抽奖软件是包括客户端和管理端,在抽奖软件开发过程中,主要用到了如下知识点:

  • 开发工具:Visual Studion 2022
  • 开发框架:.NET6.0 + WPF
  • MVVM框架:CommunityToolkit.Mvvm 8.2.2
  • 数据库:Sqlite
  • ORM框架:SqlSugarCore 5.1.4.154
  • 数据库客户端:SQLiteStudio 3.4.4

 

数据表设计

 

根据抽奖软件的功能进行拆解,主要包括:Gift(礼品表),Lucky(奖品表),User(抽奖用户表),Winner(中奖表),各个表详细创建语句如下所示:

Gift(礼品表),主要包括礼品名称,图片路径等,如下所示:

CREATE TABLE gift (
    Id       INTEGER       PRIMARY KEY AUTOINCREMENT,
    Name     VARCHAR (255),
    ImageUrl VARCHAR (255) 
);

Lucky(奖品表),主要包括,奖品名称,数量,对应礼品ID,奖品等级(如:一等奖,二等奖),奖品类型,奖品排序(抽奖顺序),如下所示:

CREATE TABLE lucky (
    Id         INTEGER      PRIMARY KEY AUTOINCREMENT,
    Name       VARCHAR (50),
    Count      INTEGER,
    GiftId     INTEGER,
    Level      INTEGER,
    LuckyType  VARCHAR (50),
    LuckyOrder INTEGER
);

 User(抽奖用户表),参与抽奖的用户,主要用户的名称,如下所示:

CREATE TABLE user (
    Id   INTEGER      PRIMARY KEY AUTOINCREMENT,
    Name VARCHAR (50) 
);

 Winner(中奖表),主要包括中奖用户ID,奖品ID,中奖时间等。如下所示:

CREATE TABLE winner (
    Id         INTEGER  PRIMARY KEY AUTOINCREMENT,
    userid     INTEGER,
    luckyid    INTEGER,
    winnertime DATETIME
);

 

功能设计

 

抽奖软件主要包括客户端,和管理端,主要功能如下:

  • 客户端,主要用于抽奖,包括首页,抽奖页面【Enter键开始和停止抽奖,Next键切换奖项】,结束语页面。
  • 管理端,主要用于管理数据信息,包括用户管理,礼品管理,奖品管理,中奖管理等功能,主要是对各个数据表的增删改查。

 

核心源码

 

本实例项目虽然比较小,但作为一个完整的项目,为了层次清晰及便于维护,采用MVVM开发模式,UI和业务逻辑分层处理,并单独封装DAL层。

 

1. 抽奖页面源码

 

整个项目最核心的就是抽奖页面,UI层代码如下所示:

<UserControl x:Class="EasyLucky.Views.Lucky"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
             xmlns:local="clr-namespace:EasyLucky.Views"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="1000">
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="Loaded">
            <i:InvokeCommandAction Command="{Binding LoadedCommand}" PassEventArgsToCommand="True" ></i:InvokeCommandAction>
        </i:EventTrigger>
    </i:Interaction.Triggers>
    <Grid>
        <i:Interaction.Triggers>
            <i:EventTrigger EventName="MouseDown">
                <i:InvokeCommandAction Command="{Binding MouseDownCommand}" PassEventArgsToCommand="True" ></i:InvokeCommandAction>
            </i:EventTrigger>
        </i:Interaction.Triggers>
        <Grid.ColumnDefinitions>
            <ColumnDefinition></ColumnDefinition>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
        </Grid.RowDefinitions>
        <Border Grid.ColumnSpan="2" Grid.RowSpan="3">
            <Image Source="/imgs/BG_12.jpg"  Stretch="Fill"></Image>
        </Border>
        <StackPanel Orientation="Horizontal" VerticalAlignment="Top" Margin="0 40 0 0" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center">
            <TextBlock Text="正在抽取的是 " FontSize="40" Foreground="White" VerticalAlignment="Center"></TextBlock>
            <TextBlock Text="{Binding DataM.CurLucky.Lucky.Level}" FontSize="60" Foreground="Gold" FontWeight="DemiBold"></TextBlock>
            <TextBlock Text=" 等奖,共 " FontSize="40" Foreground="White" VerticalAlignment="Center"></TextBlock>
            <TextBlock Text="{Binding DataM.CurLucky.Lucky.Count}" FontSize="60" Foreground="Gold" FontWeight="DemiBold"></TextBlock>
            <TextBlock Text=" 名" FontSize="40" Foreground="White" VerticalAlignment="Center"></TextBlock>
        </StackPanel>
        <ItemsControl Grid.Row="1" Grid.Column="0" ItemsSource="{Binding DataM.CurUsers}" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" VerticalContentAlignment="Center">
            <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                    <UniformGrid Columns="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.DataM.Column}" Rows="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type UserControl}},Path=DataContext.DataM.Row}" >
                    </UniformGrid>
                </ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="40" FontWeight="DemiBold" Foreground="White" Margin="30"></TextBlock>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
        
        <StackPanel Margin="100 0 0 10" Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" Orientation="Horizontal" HorizontalAlignment="Center">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <StackPanel Orientation="Horizontal" Grid.Row="0" Grid.Column="0">
                    <TextBlock Text="{Binding DataM.CurLucky.Lucky.Level}" FontSize="40" Foreground="Gold" FontWeight="DemiBold" VerticalAlignment="Center"></TextBlock>
                    <TextBlock Text=" 等奖奖品" FontSize="40" Foreground="White" VerticalAlignment="Center"></TextBlock>
                </StackPanel>
                <TextBlock Text="{Binding DataM.CurLucky.Gift.Name}" FontSize="40" Grid.Row="1" Grid.Column="0" Foreground="Gold" FontWeight="DemiBold" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
                <Image Margin="20 0 0 0" Source="{Binding DataM.CurLucky.Gift.ImageSource}" Stretch="Fill" Grid.Row="0" Grid.Column="1" Grid.RowSpan="2" Width="200" Height="150"></Image>
            </Grid>
        </StackPanel>
        <TextBlock x:Name="btn" Grid.Column="1" Grid.Row="2" Background="Transparent" Width="10" Height="10" Focusable="True" HorizontalAlignment="Right" VerticalAlignment="Bottom">
            <i:Interaction.Triggers>
                <i:EventTrigger EventName="KeyDown">
                    <i:InvokeCommandAction Command="{Binding KeyDownCommand}" PassEventArgsToCommand="True"></i:InvokeCommandAction>
                </i:EventTrigger>
            </i:Interaction.Triggers>
        </TextBlock>
    </Grid>
</UserControl>

 

2. 业务逻辑源码

 

业务逻辑代码在ViewModel 中,如下所示:

 

开始抽奖,通过Enter键触发:

private void Start()
{
	cts = new CancellationTokenSource();
	token = cts.Token;
	task = Task.Run(() =>
	{
		var luckyCount = this.DataM.CurLucky.Lucky.Count;
		var userCount = this.DataM.Users.Count;
		var random = new Random(DateTime.Now.Second);
		var rnd = random.Next(0,userCount);
		int index = rnd;
		if(index+luckyCount > userCount)
		{
			index = userCount - luckyCount;
		}
		
		while (!token.IsCancellationRequested)
		{
			var users=new List<User>();
			if(index+luckyCount > userCount)
			{
				//读到最后再循环读取
				for(int i = index; i < userCount; i++)
				{
					users.Add(this.DataM.Users[i]);
				}
				for(int i = 0; i < luckyCount - (userCount - index); i++)
				{
					users.Add(this.DataM.Users[i]);
				}
				index = luckyCount - (userCount - index);
			}
			else
			{
				//顺序读取
				for (int i = index; i < index+luckyCount; i++)
				{
					users.Add(this.DataM.Users[i]);
				}
				index=index+luckyCount;
			}
			Application.Current.Dispatcher.Invoke(new Action(() =>
			{
				this.DataM.CurUsers = new ObservableCollection<User>(users);
			}));
			Thread.Sleep(100);
		}
	},token);
	this.DataM.State = 1;
}

 

停止抽奖 ,并保存中奖结果:

private void Stop()
{
	cts.Cancel();
	//获取当前获奖名单
	var users = this.DataM.CurUsers.ToList();
	var lucky = this.DataM.CurLucky.Lucky;
	if (winnerDal == null)
	{
		winnerDal = new WinnerDal();
	}
	foreach(var user in users)
	{
		var entity = new WinnerEntity()
		{
			UserId = user.Id,
			LuckyId = lucky.Id,
			WinnerTime = DateTime.Now,
		};
		int id= this.winnerDal.AddWinner(entity);
		if(id <1)
		{
			MessageBox.Show("添加失败");
			break;
		}
	}
	//
	for(int i=0; i<users.Count; i++)
	{
		var user = users[i];
		this.DataM.Users.Remove(user);//从列表中移除中奖名单
	}
	this.DataM.State=0;
}

 

下一个奖项,按照奖项顺序选择下一个奖项,通过Next键触发,如下所示:

private void Next()
{
	int order = this.DataM.CurLucky.Lucky.LuckyOrder;
	var next = this.DataM.Luckys.FirstOrDefault(item => item.LuckyOrder > order);
	if (next != null)
	{
		this.DataM.CurLucky.Lucky = next;
		var giftId = this.DataM.CurLucky.Lucky.GiftId;
		this.DataM.CurLucky.Gift = this.DataM.Gifts.FirstOrDefault(item => item.Id == giftId);
		if (next.Count > 4)
		{
			this.DataM.Row = 2;
			this.DataM.Column = (int)Math.Ceiling(next.Count * 1.0d / 2);
		}
		this.DataM.State = 0;
		this.DataM.CurUsers.Clear();
	}
	else
	{
		WeakReferenceMessenger.Default.Send(new StateChangedMessage(2));
	}
}

 

效果演示

 

抽奖软件实例演示,客户端主要包括首页,抽奖页,结束页,如下所示:

 

首页实例

 

抽奖页面

 

结束语页面

 

管理端主要是对数据的管理,包括礼品管理,用户管理,奖项管理,中奖管理,属于常规的数据管理页面,如下所示:

 

源码下载

 

1. gitee下载

 

源码已上传至gitee,用户可通过gitee链接进行下载,如下所示:
项目链接:https://gitee.com/ahsiang/easy-lucky

 

2. 关键字下载

 

关注个人公众号,回复关键字Lucky即可,如下所示:

以上就是基于WPF+Sqlite开发抽奖软件实例的全部内容,希望可以抛砖引玉,一起学习,共同进步。

posted @ 2024-05-22 17:32  老码识途呀  阅读(266)  评论(2编辑  收藏  举报