演示功能：
点击启动生成页面
步骤：
1、建文件
下图是三层架构列表，Models里面有模拟数据库中列的类，DAL中有DBHelper和service,BLL中有BllManager文件用于ui界面直接调用，其中img文件用户储存照片，数据库中直接存照片地址
2、添加引用关系
DAL引用Models文件，BLL引用DAL和Models文件，主文件WebApplication1引用Bll和Models
3、根据数据库中的列写Models下的XueshengModels类
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Models { public class NewModels { private string newID; public string NewID { get { return newID; } set { newID = value; } } private string newTitle; public string NewTitle { get { return newTitle; } set { newTitle = value; } } private string newsContent; public string NewsContent { get { return newsContent; } set { newsContent = value; } } private string typeType; public string TypeType { get { return typeType; } set { typeType = value; } } private string publisher; public string Publisher { get { return publisher; } set { publisher = value; } } private string pubTime; public string PubTime { get { return pubTime; } set { pubTime = value; } } private string imgUrl; public string ImgUrl { get { return imgUrl; } set { imgUrl = value; } } } }
4、DAL下的DBHelper（对数据库进行操作）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
namespace DAL
{
public class DBHelper
{
public static string connstr = "server=.;database=Info;uid=sa;pwd=123123";
public static SqlConnection conn = null;
public static void Connect() {
if ( conn==null)
{
conn = new SqlConnection(connstr);
}
conn.Close();
conn.Open();
}
public static bool NoQuery(string sql) {
Connect();
SqlCommand cmd = new SqlCommand(sql,conn);
int temp= cmd.ExecuteNonQuery();
conn.Close();
return temp>0;
}
public static SqlDataReader Reader(string sql)
{
Connect();
SqlCommand cmd = new SqlCommand(sql, conn);
return cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
}
}
}
5、DAL数据访问层下的service文件
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
namespace DAL
{
public class SeviceDAL
{
public static List<Models.NewModels> Query() {
string sql = "select * from New";
SqlDataReader reader= DBHelper.Reader(sql);
List<Models.NewModels> list = new List<Models.NewModels>();
while (reader.Read())
{
Models.NewModels model=new Models.NewModels();
model.NewID = reader["NewID"].ToString();
model.NewsContent = reader["NewsContent"].ToString();
model.NewTitle = reader["NewTitle"].ToString();
model.Publisher = reader["Publisher"].ToString();
model.TypeType = reader["TypeType"].ToString();
model.PubTime = reader["PubTime"].ToString();
model.ImgUrl = reader["ImgUrl"].ToString();
list.Add(model);
}
return list;
}
}
}
6、BLL业务逻辑层下调用DAL的文件
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Bll
{
public class BllManager
{
public static List<Models.NewModels> Query() {
return DAL.SeviceDAL.Query();
}
}
}
7、ui表现层主界面前端部分
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Index.WebForm1" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:Repeater ID="Repeater1" runat="server"> <HeaderTemplate> <table border="1"> </HeaderTemplate> <ItemTemplate> <tr> <td><%#Eval("NewID") %></td> <td><%#Eval("NewTitle") %></td> <td><%#Eval("NewsContent") %></td> <td><img src='Img/<%#Eval("ImgUrl") %>' width="60px" height="50px"/></td> <td><%#Eval("TypeType") %></td> <td><%#Eval("Publisher") %></td> <td><%#Eval("PubTime") %></td> </tr> </ItemTemplate> <FooterTemplate> </table> </FooterTemplate> </asp:Repeater> </div> </form> </body> </html>
8、ui表现层主界面后端部分
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Index
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
List<Models.NewModels> list= Bll.BllManager.Query();
this.Repeater1.DataSource = list;
this.Repeater1.DataBind();
}
}
}
