我的第一个ASP.NET项目总结

我的第一个ASP.NET项目总结

最近期末比较忙，没时间更新博客，下面我将对我自己做的一个ASP.NET项目（设备管理系统）进行总结，页面模板用的是母版，这样大大减少了代码量。最后在文章底部附上项目源码及数据库。

1. 先看效果吧
   1.1 登录页
   
   1.2 欢迎页
   
   1.3 主页/列表页
   
   1.4 查询效果（全字段查询）
   
   1.5 详情页/新建、修改
   

2. 登录示例demo
   为让大家看的更加清楚，我将连接连接数据库的操作直接写在登录示例里了。并且考虑数据安全性，我将密码进行了哈希加密。

/// 

    /// 登录
    /// 
    /// 
    /// 
    [Obsolete]
    protected void Button1_Click(object sender, EventArgs e)
    {
        
        //【1】 判断账号密码是否为空
        if (TextBox1.Text.Trim() =="" || TextBox2.Text.Trim() == "")
        {
            //提示账号密码不能为空
            //Response.Write("");
            Label1.Text = "账号/密码不能为空";
        }
        else
        {
            //清空提示语
            Label1.Text = "";

            //创建数据库连接
            SqlConnection con = new SqlConnection("server=(local);uid=sa;pwd=123;database=sbgl_db");
            //打开数据库连接
            con.Open();
            //通过用户名查询用户密码
            string strsql = "select Password from Userinfo where UserName='" + TextBox1.Text.Trim()+"'";
            //SqlDataAdapter myda = new SqlDataAdapter(strsql,con);
            SqlDataReader dr = new SqlCommand(strsql,con).ExecuteReader();
            if (dr.Read())
            {
                //对密码进行SHA1加密
                string TBpwd = FormsAuthentication.HashPasswordForStoringInConfigFile(TextBox2.Text, "SHA1");
                if (TBpwd == dr["Password"].ToString())
                {
                    //创建cookie
                    FormsAuthentication.SetAuthCookie(TextBox1.Text, false);
                    Session["username"] = TextBox1.Text.Trim();
                    //登录成功跳转页面
                    Response.Redirect("welcome.aspx");
                }
                else
                {
                    //密码错误
                    Label1.Text = "密码错误";
                }
            }
            else
            {
                //用户不存在
                Label1.Text = "用户不存在";
            }


            //关闭数据库连接
            con.Close();

        }
    }

3. 功能示例
   下面以一个表的完整过程进行解析。
   3.1 首先我们可以在前面的【主页/列表页】的效果中看到当我们选择左侧边栏的导航时会切换右侧的内容区显示相应的数据列表。那么这个其实很简单，一个gridview控件绑定数据源就能实现，下面是核心逻辑代码：

/// 

    /// 封装了绑定数据操作
    /// 
    public void BindDates()
    {
        //实例化类
        publicDB pb = new publicDB();
        //查询sql语句
        string strsql = "select * from Assetinfo";
        //调用BindDate函数
        object set = pb.BindDate(strsql);

        //绑定数据源
        GridView1.DataSource = set;
        GridView1.DataBind();
    }

3.11（全字段）查询的核心代码

/// 

    /// 查询操作
    /// 
    /// 
    /// 
    protected void butQuery(object sender, EventArgs e)
    {
        string param = TextBox1.Text;
        //string queryStr = "select * from Assetinfo where AssetDesc like '%"+param+"%'";
        string queryStr = "SELECT * FROM Assetinfo WHERE CONCAT(ISNULL(AssetNo,''),ISNULL(AssetDesc,''),ISNULL(AssetType,''),ISNULL(CheckinDate,''),ISNULL(Other,'')) LIKE  '%" + param + "%'";
        DataSet myset = publicDB.ExcuteDataSet(queryStr);
        GridView1.DataSource = myset;
        GridView1.DataBind();
    }

3.12 完整的代码如下（包括查询、翻页、删除，以及跳转详情页的操作等）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;

public partial class home : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        BindDates();
        GridView1.DataKeyNames = new string[] { "AssetNo" };
    }

    /// 

    /// 查询操作
    /// 
    /// 
    /// 
    protected void butQuery(object sender, EventArgs e)
    {
        string param = TextBox1.Text;
        //string queryStr = "select * from Assetinfo where AssetDesc like '%"+param+"%'";
        string queryStr = "SELECT * FROM Assetinfo WHERE CONCAT(ISNULL(AssetNo,''),ISNULL(AssetDesc,''),ISNULL(AssetType,''),ISNULL(CheckinDate,''),ISNULL(Other,'')) LIKE  '%" + param + "%'";
        DataSet myset = publicDB.ExcuteDataSet(queryStr);
        GridView1.DataSource = myset;
        GridView1.DataBind();
    }

    /// 

    /// 翻页操作
    /// 
    /// 
    /// 
    protected void GridView1_PageIndexChanging1(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        GridView1.DataBind();
    }

    /// 

    /// 删除操作
    /// 
    /// 
    /// 
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        //sql语句字符串
        string delete_sql = "delete from Assetinfo where AssetNo='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

        bool delete = ExceSQLs(delete_sql);

        if (delete)
        {
            //重定向刷新页面
            Response.Write("");
        }
        else
        {
            Response.Write("");
        }
    }

    /// 

    /// 封装了绑定数据操作
    /// 
    public void BindDates()
    {
        //实例化类
        publicDB pb = new publicDB();
        //查询sql语句
        string strsql = "select * from Assetinfo";
        //调用BindDate函数
        object set = pb.BindDate(strsql);

        //绑定数据源
        GridView1.DataSource = set;
        GridView1.DataBind();
    }

    /// 

    /// 封装了传递sql语句调用ExceSQL执行sql语句的方法
    /// 
    /// 要执行的sql语句
    /// 返回sql语句执行的状态，即成功与否
    public bool ExceSQLs(string sqlStr)
    {
        //实例化类
        publicDB pb = new publicDB();
        //调用ExceSQL执行sql语句返回bool值（即sql执行成功与否）
        bool sqtState = pb.ExceSQL(sqlStr);
        return sqtState;
    }

    /// 

    /// 修改操作
    /// 
    /// 
    /// 
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        string id = GridView1.DataKeys[e.NewEditIndex]["AssetNo"].ToString();
        Response.Redirect("equipmentUpdate.aspx?AssetNo=" + id);
    }

    /// 

    /// 点击新建跳转到编辑详情页
    /// 
    /// 
    /// 
    protected void toAdd(object sender, EventArgs e)
    {
        Response.Redirect("equipmentAdd.aspx");
    }

    /// 

    /// 刷新操作
    /// 
    /// 
    /// 
    protected void refresh(object sender, EventArgs e)
    {
        Response.Write("");
    }

    
}

3.2 刚刚前面说到了跳转详情，下面介绍详情页。
因为这个项目的字段比较多（28个），因此直接在共一个页面进行修应该添加操作不美观，因此我特意添加了一个详情页用来完成添加/修改数据的操作。
主要功能就包括，保存、 清空（重置）、新建、返回等功能
代码如下：
3.2.1 添加操作
Tip: 这里面用到了一个外部的公共类publicDB，这个类是我自己写的，封装了对数据/数据库的基本操作，如有连接数据、执行增删改查的基本操作等。

/// 

    /// 保存/更新操作
    /// 
    /// 
    /// 
    protected void butSave(object sender, EventArgs e)
    {
        //insert sql语句
        string addSql = "insert into Assetinfo(AssetNo,AssetModel,EquipNumber,AssetDesc,AssetType,AssetStat,AssetBooker,StockDate,CheckinDate,YearsOfService,ProduceDate,YearOfUse,SoftwareNo,RejectDate,Unit,EUser,UserPhone,NetConfInfo,Remark,CPU,Mainboard,GraphicsCard,HDisk,NetCard,Memory,CDROM,FloppyDriver,Other) values(@AssetNo,@AssetModel,@EquipNumber,@AssetDesc,@AssetType,@AssetStat,@AssetBooker,@StockDate,@CheckinDate,@YearsOfService,@ProduceDate,@YearOfUse,@SoftwareNo,@RejectDate,@Unit,@EUser,@UserPhone,@NetConfInfo,@Remark,@CPU,@Mainboard,@GraphicsCard,@HDisk,@NetCard,@Memory,@CDROM,@FloppyDriver,@Other)";

        //将所有字段装到数据里
        SqlParameter[] prams = new SqlParameter[28];
        prams[0] = new SqlParameter("AssetNo", TextBox1.Text.Trim());
        prams[1] = new SqlParameter("AssetModel", TextBox2.Text.Trim());
        prams[2] = new SqlParameter("EquipNumber", TextBox3.Text.Trim());
        prams[3] = new SqlParameter("AssetDesc", TextBox4.Text.Trim());
        prams[4] = new SqlParameter("AssetType", TextBox5.Text.Trim());
        prams[5] = new SqlParameter("AssetStat", TextBox6.Text.Trim());
        prams[6] = new SqlParameter("AssetBooker", TextBox7.Text.Trim());
        prams[7] = new SqlParameter("StockDate", TextBox8.Text.Trim());
        prams[8] = new SqlParameter("CheckinDate", TextBox9.Text.Trim());
        prams[9] = new SqlParameter("YearsOfService", TextBox10.Text.Trim());
        prams[10] = new SqlParameter("ProduceDate", TextBox11.Text.Trim());
        prams[11] = new SqlParameter("YearOfUse", TextBox12.Text.Trim());
        prams[12] = new SqlParameter("SoftwareNo", TextBox13.Text.Trim());
        prams[13] = new SqlParameter("RejectDate", TextBox14.Text.Trim());
        prams[14] = new SqlParameter("Unit", TextBox15.Text.Trim());
        prams[15] = new SqlParameter("EUser", TextBox16.Text.Trim());
        prams[16] = new SqlParameter("UserPhone", TextBox17.Text.Trim());
        prams[17] = new SqlParameter("NetConfInfo", TextBox18.Text.Trim());
        prams[18] = new SqlParameter("Remark", TextBox19.Text.Trim());
        prams[19] = new SqlParameter("CPU", TextBox20.Text.Trim());
        prams[20] = new SqlParameter("Mainboard", TextBox21.Text.Trim());
        prams[21] = new SqlParameter("GraphicsCard", TextBox22.Text.Trim());
        prams[22] = new SqlParameter("HDisk", TextBox23.Text.Trim());
        prams[23] = new SqlParameter("NetCard", TextBox24.Text.Trim());
        prams[24] = new SqlParameter("Memory", TextBox25.Text.Trim());
        prams[25] = new SqlParameter("CDROM", TextBox26.Text.Trim());
        prams[26] = new SqlParameter("FloppyDriver", TextBox27.Text.Trim());
        prams[27] = new SqlParameter("Other", TextBox28.Text.Trim());

        if (publicDB.ExcuteNonQuery(addSql, prams) > 0)
        {
            Response.Write("");
        }
        else
        {
            Response.Write("");
        }
    }

3.2.2 重置、返回操作
原理都是重定向页面

/// 

    /// 清除页面数据操作
    /// 
    protected void butClean(object sender, EventArgs e)
    {
        //重定向清除页面数据
        Response.Write("");
    }

    /// 

    /// 返回上级页面
    /// 
    /// 
    /// 
    protected void butBack(object sender, EventArgs e)
    {
        Response.Redirect("equipment.aspx");
    }

3.2.3 修改/更新操作

/// 

    /// 保存/更新操作
    /// 
    /// 
    /// 
    protected void butSave(object sender, EventArgs e)
    {

        //1 sql
        string updateSQL = "update Assetinfo set Assetinfo.AssetModel=@AssetModel,Assetinfo.EquipNumber=@EquipNumber,Assetinfo.AssetDesc=@AssetDesc,Assetinfo.AssetType=@AssetType,Assetinfo.AssetStat=@AssetStat,Assetinfo.AssetBooker=@AssetBooker,Assetinfo.StockDate=@StockDate,Assetinfo.CheckinDate=@CheckinDate,Assetinfo.YearsOfService=@YearsOfService,Assetinfo.ProduceDate=@ProduceDate,Assetinfo.YearOfUse=@YearOfUse,Assetinfo.SoftwareNo=@SoftwareNo,Assetinfo.RejectDate=@RejectDate,Assetinfo.Unit=@Unit,Assetinfo.EUser=@EUser,Assetinfo.UserPhone=@UserPhone,Assetinfo.NetConfInfo=@NetConfInfo,Assetinfo.Remark=@Remark,Assetinfo.CPU=@CPU,Assetinfo.Mainboard=@Mainboard,Assetinfo.GraphicsCard=@GraphicsCard,Assetinfo.HDisk=@HDisk,Assetinfo.NetCard=@NetCard,Assetinfo.Memory=@Memory,Assetinfo.CDROM=@CDROM,Assetinfo.FloppyDriver=@FloppyDriver,Assetinfo.Other=@Other where AssetNo='" + index + "'";
        //2 获取页面全部数据
        SqlParameter[] prams = new SqlParameter[27];
        //prams[0] = new SqlParameter("AssetNo", TextBox1.Text.Trim());
        prams[0] = new SqlParameter("AssetModel", TextBox2.Text.Trim());
        prams[1] = new SqlParameter("EquipNumber", TextBox3.Text.Trim());
        prams[2] = new SqlParameter("AssetDesc", TextBox4.Text.Trim());
        prams[3] = new SqlParameter("AssetType", TextBox5.Text.Trim());
        prams[4] = new SqlParameter("AssetStat", TextBox6.Text.Trim());
        prams[5] = new SqlParameter("AssetBooker", TextBox7.Text.Trim());
        prams[6] = new SqlParameter("StockDate", TextBox8.Text.Trim());
        prams[7] = new SqlParameter("CheckinDate", TextBox9.Text.Trim());
        prams[8] = new SqlParameter("YearsOfService", TextBox10.Text.Trim());
        prams[9] = new SqlParameter("ProduceDate", TextBox11.Text.Trim());
        prams[10] = new SqlParameter("YearOfUse", TextBox12.Text.Trim());
        prams[11] = new SqlParameter("SoftwareNo", TextBox13.Text.Trim());
        prams[12] = new SqlParameter("RejectDate", TextBox14.Text.Trim());
        prams[13] = new SqlParameter("Unit", TextBox15.Text.Trim());
        prams[14] = new SqlParameter("EUser", TextBox16.Text.Trim());
        prams[15] = new SqlParameter("UserPhone", TextBox17.Text.Trim());
        prams[16] = new SqlParameter("NetConfInfo", TextBox18.Text.Trim());
        prams[17] = new SqlParameter("Remark", TextBox19.Text.Trim());
        prams[18] = new SqlParameter("CPU", TextBox20.Text.Trim());
        prams[19] = new SqlParameter("Mainboard", TextBox21.Text.Trim());
        prams[20] = new SqlParameter("GraphicsCard", TextBox22.Text.Trim());
        prams[21] = new SqlParameter("HDisk", TextBox23.Text.Trim());
        prams[22] = new SqlParameter("NetCard", TextBox24.Text.Trim());
        prams[23] = new SqlParameter("Memory", TextBox25.Text.Trim());
        prams[24] = new SqlParameter("CDROM", TextBox26.Text.Trim());
        prams[25] = new SqlParameter("FloppyDriver", TextBox27.Text.Trim());
        prams[26] = new SqlParameter("Other", TextBox28.Text.Trim());
        //3 执行update更新操作
        if (publicDB.ExcuteNonQuery(updateSQL, prams) > 0)
        {
            Response.Write("");
        }
        else
        {
            Response.Write("");
        }
       
    }

4. 源码及数据库链接
   链接：https://pan.baidu.com/s/1GP8kP0dus6-B4cXTtWVtlg
   提取码：9249
   复制这段内容后打开百度网盘手机App，操作更方便哦

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