【.net开发实战】物联网温湿度上报管理系统（一）

其他 2020-07-24 10:31:21 阅读次数: 0

温湿度上报管理系统

1.开发平台与背景

2.硬件准备

3.WPF登录界面开发

4.数据库开发

4.WPF上位机开发

5.ASP.net网页开发

 

一、开发平台

由于最近需要做一个物联网场景的应用，花了5天时间做了一个简单的物联网综合管理平台，借此机会分享给各位参考和学习。

开发平台使用的是Visual Studio2019；虚拟串口使用“Configure Virtual Serial Port Driver”工具

虚拟串口数据生成使用“Modbus Slave”，接受串口数据测试使用“Modbus Poll”。

二、硬件准备（可选）

由于时间紧迫，尚未来得及写单片机串口，项目调试全程使用虚拟串口工具；不会写底层硬件代码可购买温湿度变送器（RS485），采用Modbus-rtu协议，直接串口输出温湿度数据。

三、登录界面开发（WPF应用程序）

需要使用的控件：

登录界面：textbox1（账户）、textbox2（密码）、Button1（登录）、Button2（注册）、若干text文本提示和背景图片资源

注册界面：若干textbox收集用户信息、若干text文本提示和背景图片资源、Button1（注册）、Button2（取消）

最后实现效果：

登录界面

注册界面


 

第一步：因为使用Modbus-rtu协议，需要先下载插件“Nmodbus4”

菜单栏---工具（T）----Nuget包管理器---管理解决方案的Nuget程序包

第二步：放入images图片资源到项目中

第三步：创建一个存储数据的数据库（需要提前安装SQL Server环境）

打开服务器资源管理器，创建本地数据库、新建表

贴出创建注册表代码

CREATE TABLE [dbo].[Users] (

    [UserId]   INT           IDENTITY (1, 1) NOT NULL,

    [UserName] NVARCHAR (50) NOT NULL,

    [UserPwd]  NVARCHAR (50) NOT NULL,

	[Sex] [nchar](2) NULL,

	[NativePlace] NCHAR(20) NULL,

	[Hobby] [nvarchar](50) NULL

    PRIMARY KEY CLUSTERED ([UserId] ASC), 

    [Suggest] NCHAR(100) NULL,    	

);

接下来开始设计界面

工程项目名字“IntegratedPJ75”

登录WPF窗口命名“UserLogin”

UserLogin.XMAL

<Window x:Class="IntegratedPJ75.UserLogin"
        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:IntegratedPJ75"
        mc:Ignorable="d"
        Title="用户登录，用户注册界面" Height="581.992" Width="1089.56" Loaded="Window_Loaded_1">
    <Grid>

        <Grid.Background>
            <ImageBrush ImageSource="images/gourd.png"/>
        </Grid.Background>
        <Grid  >
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="176*"/>
                <ColumnDefinition Width="74*"/>
                <ColumnDefinition Width="586*"/>
                <ColumnDefinition Width="85*"/>
                <ColumnDefinition Width="161*"/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="25*"/>
                <RowDefinition Height="29*"/>
                <RowDefinition Height="169*"/>
                <RowDefinition Height="46*"/>
                <RowDefinition Height="7*"/>
            </Grid.RowDefinitions>
            <Grid.Background>
                <SolidColorBrush Color="Black" Opacity="0.3"/>
            </Grid.Background>
            <!--登陆-->
            <Grid x:Name="grdLogin" Visibility="Hidden"  Grid.Row ="2" Grid.Column ="2"   HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" >
                <Border BorderBrush="Blue" Opacity="0.6"    CornerRadius="20" BorderThickness="2" Background="#FF17547C">

                </Border>
                <Border   Background="#015CAF" Visibility="Visible" Margin="20"     CornerRadius="20" BorderThickness="2" BorderBrush="#FF002EFF">
                    <Grid Margin="20">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="137*"/>
                            <ColumnDefinition Width="115*"/>
                            <ColumnDefinition Width="250*"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="38*"/>
                            <RowDefinition Height="29*"/>
                            <RowDefinition Height="28*"/>
                            <RowDefinition Height="32*"/>
                        </Grid.RowDefinitions>
                        <Image HorizontalAlignment="Center"  Grid.RowSpan="1" Grid.ColumnSpan="3" VerticalAlignment="Stretch"  Source="images/image_user.png" Grid.Column="0" />
                        <Label Content="用户名：" Foreground="White"  Grid.Column="0" Grid.Row="1" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center"></Label>
                        <TextBox x:Name="txtLoginUserName" Grid.Column="1" Grid.Row="1" Grid.ColumnSpan="2" FontSize="30"  HorizontalAlignment="Stretch"  VerticalAlignment="Center" Background="#FF4084C3" BorderBrush="{x:Null}"  />
                        <Label Content="密　码：" Foreground="White"  Grid.Column="0" Grid.Row="2" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center"></Label>
                        <PasswordBox  x:Name="pwdLoginUserPwd" Grid.Column="1" Grid.Row="2" Grid.ColumnSpan="2" FontSize="30"  HorizontalAlignment="Stretch"   VerticalAlignment="Center" Background="#FF4084C3" Padding="0" SelectionOpacity="0" BorderBrush="{x:Null}" />
                        <Button Grid.Column="2" Click="btnRegisteredShow_Click_1" x:Name="btnRegisteredShow" Content="注册" FontSize="23" Foreground="White" Grid.Row="3" Width="150" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center" Background="#0085FE"/>
                        <Button Grid.Column="0" Click="btnLogin_Click_1" x:Name="btnLogin"  Content="登录" FontSize="23" Foreground="White"  Grid.Row="3"  Grid.ColumnSpan="2" Width="150" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center" Background="#FFF0A401"></Button>
                    </Grid>
                </Border>
            </Grid>
            <!--注册-->
            <Grid x:Name="grdRegistered"  Grid.Row ="1" Grid.RowSpan="3" Visibility="Visible" Grid.Column ="1" Grid.ColumnSpan="3"  HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" >
                <Border BorderBrush="Blue" Opacity="0.6"    CornerRadius="20" BorderThickness="2" Background="#FF17547C">

                </Border>
                <Border   Background="#015CAF" Visibility="Visible" Margin="20"     CornerRadius="20" BorderThickness="2" BorderBrush="#FF002EFF">
                    <Grid Margin="20">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="172*"/>
                            <ColumnDefinition Width="62*"/>
                            <ColumnDefinition Width="185*"/>
                            <ColumnDefinition Width="242*"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="61*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                            <RowDefinition Height="52*"/>
                        </Grid.RowDefinitions>
                        <Image HorizontalAlignment="Center"  Grid.RowSpan="3" VerticalAlignment="Stretch"  Source="images/image_user.png" Grid.Column="3"  Stretch="None" Margin="81,0" Width="80"    />
                        <Label Content="用户名：" Foreground="White" Grid.Column="0" Grid.Row="0" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,0,28,0"></Label>
                        <TextBox Grid.Column="1"  x:Name="txtRegisteredUserName"  Grid.Row="0" Grid.ColumnSpan="2" FontSize="30"  HorizontalAlignment="Stretch"  VerticalAlignment="Center" Background="#FF4084C3" BorderBrush="{x:Null}" Height="40" Margin="0,6"   />
                        <Label Content="密　码："   Foreground="White"  Grid.Column="0" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,50,28,2" Grid.RowSpan="2"/>
                        <PasswordBox Grid.Column="1"   x:Name="pwdRegisteredUserPwd1" Grid.Row="1" Grid.ColumnSpan="2" FontSize="30"  HorizontalAlignment="Stretch"  VerticalAlignment="Center" Background="#FF4084C3" BorderBrush="{x:Null}" Height="40" Margin="0,2"   />
                        <Label Content="确认密码：" Foreground="White"  Grid.Column="0" Grid.Row="1" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="8,42,60,2" Grid.ColumnSpan="2" Grid.RowSpan="2"/>
                        <PasswordBox Grid.Column="1"  x:Name="pwdRegisteredUserPwd2" Grid.Row="2" Grid.ColumnSpan="2" FontSize="30"  HorizontalAlignment="Stretch"   VerticalAlignment="Center" Background="#FF4084C3" Padding="0" SelectionOpacity="0" BorderBrush="{x:Null}" Height="38" Margin="0,3"   />
                        <Label Content="性　别：" Foreground="White"  Grid.Column="0" Grid.Row="2" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,41,28,3" Grid.RowSpan="2"></Label>
                        <RadioButton Content="男" x:Name="rbtnBoy"  FontSize="30" Height="40" Grid.Column="1" Foreground="White" HorizontalAlignment="Left" Grid.Row="3" VerticalAlignment="Center" Margin="0,2" Width="46"/>
                        <RadioButton Content="女" x:Name="rbtnGirl"   FontSize="30" Height="40" Grid.Column="2" Foreground="White" HorizontalAlignment="Left" Grid.Row="3" VerticalAlignment="Center" Margin="0,2" Width="46"/>
                        <Label Content="籍　贯：" Foreground="White"  Grid.Column="0" Grid.Row="4" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,0,28,0"></Label>
                        <ComboBox x:Name="cboOriginType"  SelectionChanged="cboOriginType_SelectionChanged_1" Grid.ColumnSpan="2" Grid.Column="1" FontSize="20" Height="30" Width="120"  HorizontalAlignment="Left" Background="#FF4084C3" Grid.Row="4" VerticalAlignment="Center" Margin="0,7" >
                            <ListBoxItem Content="省"/>
                            <ListBoxItem Content="直辖市"/>
                            <ListBoxItem Content="自治区"/>
                        </ComboBox>
                        <ComboBox x:Name="cboOriginName" IsEnabled="False" Grid.ColumnSpan="1" Grid.Column="2" FontSize="20" Height="30" Width="120"  HorizontalAlignment="Right" Background="#FF4084C3" Grid.Row="4" VerticalAlignment="Center" Margin="0,7" />
                        <Label Content="爱　好：" Foreground="White"  Grid.Column="0" Grid.Row="4" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,42,28,2" Grid.RowSpan="2"></Label>
                        <CheckBox Content="体育运动"  x:Name="chkSports"   Grid.Column="1" FontSize="25" Height="40"  Foreground="White" HorizontalAlignment="Left"   Grid.Row="5" VerticalAlignment="Center" Grid.ColumnSpan="2" Margin="0,2" Width="117"/>
                        <CheckBox Content="上网聊天" x:Name="chkInternetChat" Grid.Column="2" FontSize="25" Height="40"  Foreground="White" HorizontalAlignment="Center"   Grid.Row="5" VerticalAlignment="Center" Margin="64,2,4,2" Width="117"/>
                        <CheckBox Content="" x:Name="chkHobbiesOther"   Grid.Column="3" FontSize="25" Height="40"  Foreground="White" HorizontalAlignment="Left"   Grid.Row="5" VerticalAlignment="Center" Margin="0,2" Width="17"/>
                        <TextBox Grid.Column="3" x:Name="txtHobbiesOther"  Grid.Row="5 " FontSize="30"  HorizontalAlignment="Stretch"  VerticalAlignment="Center" Background="#FF4084C3" Margin="19,2,0,2" BorderBrush="{x:Null}" Height="40"   />

                        <Label Content="建　议：" Foreground="White"  Grid.Column="0" Grid.Row="5" FontSize="30" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" Margin="-28,42,28,2" Grid.RowSpan="2"></Label>
                        <TextBox Grid.Column="1"  x:Name="txtSuggest"  Grid.Row="6" Grid.ColumnSpan="3" Grid.RowSpan="2" FontSize="30" TextWrapping="Wrap" HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" Background="#FF4084C3" BorderBrush="{x:Null}" Margin="0,5,0,5" />
                        <Button Grid.Column="3" Click="btnRegisteredCancel_Click_1" x:Name="btnRegisteredCancel" Content="取消" FontSize="23" Foreground="White" Grid.Row="8" Width="150" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center" Background="#0085FE" Margin="46,2"  />
                        <Button Grid.Column="0" Click="btnRegistered_Click_1" x:Name="btnRegistered"  Content="注册" FontSize="23" Foreground="White"  Grid.Row="8"  Grid.ColumnSpan="2"  Width="150" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center" Background="#FFF0A401" ></Button>


                    </Grid>
                </Border>
            </Grid>
            <!--欢迎-->
            <Grid x:Name="grdWelcome" MouseDown="grdWelcome_MouseDown_1" Visibility="Hidden"  Grid.Row ="0" Grid.Column ="0" Grid.ColumnSpan="5" Grid.RowSpan="4"  HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" >
                <Grid.Background>
                    <ImageBrush ImageSource="images/welcome.png"/>
                </Grid.Background>

                <Button Content="温湿度监控" HorizontalAlignment="Left" Margin="491,416,0,0" VerticalAlignment="Top" Height="40" Width="93" FontSize="16" Click="btnWelcome_Click_1" Background="#FFF0A401"></Button>

            </Grid>

        </Grid>

    </Grid>
</Window>

UserLogin.xmal.cs

using System;
using System.Collections.Generic;
using System.Data.SqlClient;
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.Shapes;

namespace IntegratedPJ75
{
    /// <summary>
    /// UserLogin.xaml 的交互逻辑
    /// </summary>
    public partial class UserLogin : Window
    {
        public UserLogin()
        {
            InitializeComponent();

        }
        //用户名
        private string UserName = "";
        //用户密码
        private string UserPwd = "";
        //用户性别
        private string UserGender = "";
        //用户籍贯
        private string UserOriginName = "";
        //用户爱好
        private string UserHobbies = "";
        //用户建议
        private string UserSuggest = "";
        #region Welcome

        private void grdWelcome_MouseDown_1(object sender, MouseButtonEventArgs e)
        {
            GridShow(grdLogin);
        }
        #endregion
        #region Registered

        private void btnRegisteredCancel_Click_1(object sender, RoutedEventArgs e)
        {
            GridShow(grdLogin);
            txtRegisteredUserName.Text = "";
            pwdRegisteredUserPwd1.Password = "";
            pwdRegisteredUserPwd2.Password = "";
        }

        private void btnRegistered_Click_1(object sender, RoutedEventArgs e)
        {
            //信息完整检测
            if (txtRegisteredUserName.Text == "" ||
                pwdRegisteredUserPwd1.Password.ToString() == "" ||
                pwdRegisteredUserPwd2.Password.ToString() == "")
            {
                MessageBox.Show("请填写完整！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
                return;
            }

            //两次密码一致性检测
            if (pwdRegisteredUserPwd1.Password.ToString() !=
                pwdRegisteredUserPwd2.Password.ToString())
            {
                MessageBox.Show("两次密码不一致,请重新输入！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
                return;
            }

            //注册成功===========================
            //用户名
            UserName = txtRegisteredUserName.Text;
            //密码
            UserPwd = pwdRegisteredUserPwd1.Password.ToString();
            //性别
            if (rbtnBoy.IsChecked != null)
            {
                UserGender = (((bool)rbtnBoy.IsChecked) ? "男" : "女");
            }
            else
            {
                UserGender = "女";
            }
            //爱好
            CheckBox[] HobbiesS = new CheckBox[] { chkSports, chkInternetChat, chkHobbiesOther };
            UserHobbies = "";
            for (int i = 0; i < HobbiesS.Length; i++)
            {
                CheckBox chk = HobbiesS[i];
                if (chk.IsChecked == true && chk.Content != "")
                {
                    UserHobbies += chk.Content.ToString();
                }
                else if (chk.IsChecked == true)
                {
                    UserHobbies += txtHobbiesOther.Text;
                }
            }
            //籍贯
            UserOriginName = "";
            if (cboOriginName.IsEnabled == true)
            {
                UserOriginName = cboOriginName.Text;
            }
            //建议
            UserSuggest = txtSuggest.Text;
            MessageBox.Show(
                "用户名：" + UserName + "\r\n" +
                "性　别：" + UserGender + "\r\n" +
                "籍　贯：" + UserOriginName + "\r\n" +
                "爱　好：" + UserHobbies + "\r\n" +
                "建　议：" + UserSuggest + "\r\n" +
                "注册成功！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);

            GridShow(grdLogin);
            txtRegisteredUserName.Text = "";
            pwdRegisteredUserPwd1.Password = "";
            pwdRegisteredUserPwd2.Password = "";
      //需要更改数据库连接字符------------------------------------------------------------
            string connString = @"Data Source=(localdb)\Pooling=False;";

            string sql = String.Format("INSERT INTO Users(UserName,UserPwd,Sex,NativePlace," +

              "Hobby,Suggest) VALUES(N'{0}',N'{1}',N'{2}',N'{3}',N'{4}',N'{5}')",

              UserName, UserPwd, UserGender, UserOriginName, UserHobbies, UserSuggest);//SQL语句

            using (SqlConnection conn = new SqlConnection(connString))
            {
                conn.Open();

                SqlCommand comm = new SqlCommand(sql, conn);//command对象
                int n = comm.ExecuteNonQuery();//执行添加命令，返回值为更新的行数
                if (n > 0)
                {
                    MessageBox.Show(

                        "用户名：" + UserName + "\r\n" +

                        "性　别：" + UserGender + "\r\n" +

                        "籍　贯：" + UserOriginName + "\r\n" +

                        "爱　好：" + UserHobbies + "\r\n" +

                        "建　议：" + UserSuggest + "\r\n" +

                        "注册成功！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
                }
                else


                    MessageBox.Show(

                "注册失败！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);

            }


        }
        /// <summary>
        /// 籍贯类型选择事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboOriginType_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
        {
            string[] OriginTypeName = new string[0];
            switch (cboOriginType.SelectedIndex)
            {
                case 0:
                    {
                        //省
                        OriginTypeName = new string[]{
                            "河北省",
                            "山西省",
                            "辽宁省",
                            "吉林省",
                            "黑龙江省",
                            "江苏省",
                            "浙江省",
                            "安徽省",
                            "福建省",
                            "江西省",
                            "山东省",
                        "河南省",
                        "湖北省",
                        "湖南省",
                        "广东省",
                        "海南省",
                        "四川省",
                        "贵州省",
                        "云南省",
                        "陕西省",
                        "甘肃省",
                        "青海省",
                        "台湾省"

                       };
                    }
                    break;
                case 1:
                    {//直辖市
                        OriginTypeName = new string[] {
                        "北京",
                        "天津",
                        "上海",
                        "重庆"
                        };
                    }
                    break;
                case 2:
                    {
                        //自治区
                        OriginTypeName = new string[] {
                        "新疆维吾尔族自治区",
                        "广西壮族自治区",
                        "宁夏回族自治区",
                        "内蒙古自治区",
                        "西藏自治区"
                        };
                    }
                    break;
                default:
                    break;
            }
            if (OriginTypeName.Length > 0)
            {
                cboOriginName.ItemsSource = OriginTypeName;
                if (cboOriginName.IsEnabled == false)
                {
                    cboOriginName.IsEnabled = true;
                }
            }
            else
            {
                cboOriginName.IsEnabled = false;
            }
        }
        #endregion
        #region Login

        private void btnRegisteredShow_Click_1(object sender, RoutedEventArgs e)
        {
            GridShow(grdRegistered);
            txtLoginUserName.Text = "";
            pwdLoginUserPwd.Password = "";
        }

        private void btnLogin_Click_1(object sender, RoutedEventArgs e)
        {
//需要更改数据库连接字符------------------------------------------------------------
            string connString = @"Data Source=(localdb)\ProjectsXXXPooling=False;";

            //创建数据库连接对象

            SqlConnection conn = new SqlConnection(connString);

            string sql = String.Format("select count(*)from [Users] where UserName='{0}'and UserPwd='{1}'", txtLoginUserName.Text, pwdLoginUserPwd.Password);

            try

            {

                conn.Open();

                SqlCommand comm = new SqlCommand(sql, conn);

                int n = (int)comm.ExecuteScalar();//执行查询语句，返回匹配的行数

                if (n >= 1)

                {

                    //登陆成功

                    GridShow(grdWelcome);

                    txtLoginUserName.Text = "";

                    pwdLoginUserPwd.Password = "";

                }

                else

                {

                    MessageBox.Show("您输入的用户名或密码错误！请重试", "登录失败", MessageBoxButton.OK, MessageBoxImage.Error);

                }


            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message, "操作数据库出错", MessageBoxButton.OK, MessageBoxImage.Error);

            }

            finally { conn.Close(); }
        }
        #endregion
        private void GridShow(Grid grd)
        {
            grdRegistered.Visibility = Visibility.Hidden;
            grdLogin.Visibility = Visibility.Hidden;
            grdWelcome.Visibility = Visibility.Hidden;
            grd.Visibility = Visibility.Visible;
        }

        private void Window_Loaded_1(object sender, RoutedEventArgs e)
        {
            GridShow(grdLogin);
        }

        private void btnWelcome_Click_1(object sender, RoutedEventArgs e)
        {

            UserLogin userlogin = new UserLogin();
            this.Close();
        }
    }
}

注意：126行和258行需要更改字符串连接字段（否则无法连接到数据库） 脱离数据库只能在内存中存储注册信息。

string connString = @"Data Source=(localdb)\ProjectsV13;Initial Catalog=Mydata;Integrated Security=True;Pooling=False;";

获取方法：打开服务器资源管理器-右键数据库-属性-即可得到连接字符串“Data Source..............."

敬请关注 持续整理更新中............

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