项目 6 数据存储：仿冒 SqlClient（T-SQL 转写成 SQLite）、数据库页面、DataGridView、DateTimePicker
- 每个学生一套数据库，长期保存（data/databases/<用户编号>/库名.db）；学生程序运行时挂进沙箱可读写 - Sim.Data：SqlConnection / SqlCommand / SqlDataReader / SqlDataAdapter / SqlCommandBuilder / SqlParameter； 连接字符串只按库名打开学生自己的库；ScriptDom 解析 T-SQL 后按白名单转写成 SQLite 语句， STRICT 表 + 元数据表还原 SQL Server 的列类型，报错编号和中文信息与 SQL Server 一致； INSERT 不写列名时跳过自增列，日期统一格式（书上 DateTime.ToString() 拼接的日期能正确比较） - 常驻 SQL 服务（Sim.Runner sql-server）：数据库页面的查询、对象资源管理器，评分前按实验 database.sql 建库 - 数据库页面（代替 SSMS）：对象资源管理器、查询窗口、编辑前 200 行、表设计器、恢复实验初始数据 - DataGridView（绑定 DataView/DataTable/DataSet，单元格修改写回 DataTable）、DateTimePicker；设计器工具箱加入 - 评分：每个检查项一份新建的实验库；新增点 / 修改表格单元格、选日期、表格里有 / 没有某行的检查 - 示例：项目 6 任务 2、3；时间格式改成和中文 Windows 一致（9:05:03）；异常堆栈不暴露服务器路径 - 测试：数据库端到端、接口（每人只看到自己的库、恢复实验数据）、评分出错情况、T-SQL 生成 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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namespace 校园数据存储
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{
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partial class Form1
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{
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/// <summary>
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/// 必需的设计器变量。
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/// </summary>
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private System.ComponentModel.IContainer components = null;
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/// <summary>
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/// 清理所有正在使用的资源。
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/// </summary>
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/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
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protected override void Dispose(bool disposing)
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{
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if (disposing && (components != null))
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{
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components.Dispose();
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}
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base.Dispose(disposing);
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}
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#region Windows 窗体设计器生成的代码
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/// <summary>
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/// 设计器支持所需的方法 - 不要
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/// 使用代码编辑器修改此方法的内容。
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/// </summary>
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private void InitializeComponent()
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{
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this.groupBox4 = new System.Windows.Forms.GroupBox();
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this.dataGridView1 = new System.Windows.Forms.DataGridView();
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this.btnCx = new System.Windows.Forms.Button();
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this.LblStartTime = new System.Windows.Forms.Label();
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this.LblEndTime = new System.Windows.Forms.Label();
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this.StartTime = new System.Windows.Forms.DateTimePicker();
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this.EndTime = new System.Windows.Forms.DateTimePicker();
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this.groupBox4.SuspendLayout();
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((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
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this.SuspendLayout();
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//
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// groupBox4
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//
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this.groupBox4.Controls.Add(this.dataGridView1);
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this.groupBox4.Location = new System.Drawing.Point(1, 52);
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this.groupBox4.Margin = new System.Windows.Forms.Padding(2);
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this.groupBox4.Name = "groupBox4";
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this.groupBox4.Padding = new System.Windows.Forms.Padding(2);
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this.groupBox4.Size = new System.Drawing.Size(642, 283);
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this.groupBox4.TabIndex = 3;
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this.groupBox4.TabStop = false;
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this.groupBox4.Text = "历史记录";
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//
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// dataGridView1
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//
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this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
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this.dataGridView1.Location = new System.Drawing.Point(4, 17);
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this.dataGridView1.Margin = new System.Windows.Forms.Padding(2);
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this.dataGridView1.Name = "dataGridView1";
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this.dataGridView1.RowTemplate.Height = 27;
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this.dataGridView1.Size = new System.Drawing.Size(634, 261);
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this.dataGridView1.TabIndex = 0;
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//
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// btnCx
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//
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this.btnCx.Location = new System.Drawing.Point(541, 19);
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this.btnCx.Name = "btnCx";
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this.btnCx.Size = new System.Drawing.Size(79, 23);
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this.btnCx.TabIndex = 4;
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this.btnCx.Text = "查询";
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this.btnCx.UseVisualStyleBackColor = true;
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this.btnCx.Click += new System.EventHandler(this.btnCx_Click);
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//
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// LblStartTime
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//
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this.LblStartTime.AutoSize = true;
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this.LblStartTime.Location = new System.Drawing.Point(25, 23);
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this.LblStartTime.Name = "LblStartTime";
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this.LblStartTime.Size = new System.Drawing.Size(53, 12);
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this.LblStartTime.TabIndex = 5;
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this.LblStartTime.Text = "开始日期";
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//
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// LblEndTime
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//
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this.LblEndTime.AutoSize = true;
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this.LblEndTime.Location = new System.Drawing.Point(272, 25);
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this.LblEndTime.Name = "LblEndTime";
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this.LblEndTime.Size = new System.Drawing.Size(53, 12);
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this.LblEndTime.TabIndex = 6;
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this.LblEndTime.Text = "结束日期";
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//
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// StartTime
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//
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this.StartTime.Location = new System.Drawing.Point(84, 19);
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this.StartTime.Name = "StartTime";
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this.StartTime.Size = new System.Drawing.Size(136, 21);
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this.StartTime.TabIndex = 7;
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//
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// EndTime
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//
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this.EndTime.Location = new System.Drawing.Point(358, 19);
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this.EndTime.Name = "EndTime";
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this.EndTime.Size = new System.Drawing.Size(148, 21);
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this.EndTime.TabIndex = 8;
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//
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// Form1
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//
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this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
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this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
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this.ClientSize = new System.Drawing.Size(654, 346);
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this.Controls.Add(this.EndTime);
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this.Controls.Add(this.StartTime);
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this.Controls.Add(this.LblEndTime);
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this.Controls.Add(this.LblStartTime);
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this.Controls.Add(this.btnCx);
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this.Controls.Add(this.groupBox4);
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this.Margin = new System.Windows.Forms.Padding(2);
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this.Name = "Form1";
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this.Text = "查询校园灾情数据";
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this.groupBox4.ResumeLayout(false);
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((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
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this.ResumeLayout(false);
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this.PerformLayout();
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}
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#endregion
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private System.Windows.Forms.GroupBox groupBox4;
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private System.Windows.Forms.DataGridView dataGridView1;
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private System.Windows.Forms.Button btnCx;
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private System.Windows.Forms.Label LblStartTime;
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private System.Windows.Forms.Label LblEndTime;
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private System.Windows.Forms.DateTimePicker StartTime;
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private System.Windows.Forms.DateTimePicker EndTime;
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}
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}
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using System.Data.SqlClient;
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using System.IO.Ports;
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namespace 校园数据存储
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{
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public partial class Form1 : Form
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{
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public Form1()
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{
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InitializeComponent();
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}
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string sqlConnectString = @"Data Source=.;Initial Catalog=环境数据表;User ID=sa;Password=123456";//数据库的连接字符串
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SqlConnection mySqlConnection;
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SqlCommand mySqlCmd;
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SqlDataAdapter sqldata;
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DataSet ds;
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private void btnCx_Click(object sender, EventArgs e)
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{
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mySqlConnection = new SqlConnection(sqlConnectString);//创建数据库连接对象
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mySqlConnection.Open();//打开数据库
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//查询开始日期和结束日期之间的数据
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SqlCommand sqlcmd = new SqlCommand("select ID as '编号',temperature as '温度',humidity as '湿度',light as '光照度',addtime as '时间' from CampusEnvironment where addtime BETWEEN '" + StartTime.Value.ToString() + "' AND '" + EndTime.Value.ToString() + "'", mySqlConnection);
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sqldata = new SqlDataAdapter(sqlcmd);
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ds = new DataSet();
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sqldata.Fill(ds);
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dataGridView1.DataSource = ds.Tables[0].DefaultView;
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mySqlConnection.Close();//关闭数据库
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}
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}
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}
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@@ -0,0 +1,22 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace 校园数据存储
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{
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static class Program
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{
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/// <summary>
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/// 应用程序的主入口点。
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/// </summary>
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[STAThread]
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static void Main()
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{
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(false);
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Application.Run(new Form1());
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}
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}
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}
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# 评分规则：书上评价表的功能项。每项单独启动一次程序（使用 database.sql 建的初始数据库），按步骤操作，核对结果。
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# 初始数据有 3 行：2024-01-16 09:00、2024-01-18 14:30、2024-01-23 08:15
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# 格式说明见 server/src/grading/checks.ts
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- title: 能实现按日期查询灾情数据
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steps:
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- pick: { control: StartTime, value: '2024-01-15' }
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- pick: { control: EndTime, value: '2024-01-20' }
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- click: btnCx
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- expect: { control: dataGridView1, row: [编号=1], desc: 查到 1 月 16 日的数据 }
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- expect: { control: dataGridView1, row: [编号=2], desc: 查到 1 月 18 日的数据 }
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- expect: { control: dataGridView1, noRow: [编号=3], desc: 不包含时间段以外（1 月 23 日）的数据 }
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- pick: { control: StartTime, value: '2024-01-21' }
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- pick: { control: EndTime, value: '2024-01-31' }
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- click: btnCx
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- expect: { control: dataGridView1, row: [编号=3], desc: 改变日期后重新查询，查到 1 月 23 日的数据 }
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- expect: { control: dataGridView1, noRow: [编号=1], desc: 改变日期后重新查询，不再包含 1 月 16 日的数据 }
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-- 实验的初始数据库：任务 1 建的"环境数据表"库和 EnvironmentWork 表，任务 2 第 1 步建的 CampusEnvironment 表。
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-- 学生可以在数据库页面"恢复实验初始数据"；评分时每个检查项用一份新的。
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CREATE DATABASE 环境数据表
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GO
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USE 环境数据表
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GO
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CREATE TABLE EnvironmentWork (light varchar(MAX) NULL, temperature varchar(MAX) NULL, humidity varchar(MAX) NULL)
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CREATE TABLE CampusEnvironment (ID int IDENTITY(1,1) PRIMARY KEY, light varchar(50), humidity varchar(50), temperature varchar(50), addtime datetime)
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GO
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INSERT INTO EnvironmentWork VALUES ('520', '24', '58')
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INSERT INTO EnvironmentWork VALUES ('480', '25', '61')
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INSERT INTO CampusEnvironment (light, humidity, temperature, addtime) VALUES ('520', '58', '24', '2024-01-16 09:00:00')
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INSERT INTO CampusEnvironment (light, humidity, temperature, addtime) VALUES ('610', '55', '26', '2024-01-18 14:30:00')
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INSERT INTO CampusEnvironment (light, humidity, temperature, addtime) VALUES ('300', '63', '21', '2024-01-23 08:15:00')
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{
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"title": "项目6 任务3 查询校园安防数据",
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"source": "教材书 p127–128，界面取自配套参考工程；补上书上漏写的 ds = new DataSet();（不写时 Fill 报空引用）。数据库和任务 2 相同（环境数据表）"
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}
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