公共类：
CommonClass.cs
View Code
public class CommonClass
{
///
/// 连接数据库
///
///Sqlconnection对象
public SqlConnection GetConnection()
{
string str = ConfigurationManager.AppSettings["Connection"].ToString();
SqlConnection conn = new SqlConnection(str);
return conn;
}
///
/// 在客户端弹出对话框
///
///对话框显示的内容
///对话框关闭后跳转的URL
///
public string MessageBox(string TxtMessage, string Url)
{
string str;
str = "";
return str;
}
///
///执行sql
///
///SQL字符串
///操作是否成功(true/false)
public Boolean ExecSQL(string sqlStr)
{
SqlConnection conn = GetConnection();
conn.Open();
SqlCommand cmd = new SqlCommand(sqlStr, conn);
try
{
cmd.ExecuteNonQuery();
conn.Close();
}
catch (Exception)
{
conn.Close();
return false;
}
return true;
}
///
/// 返回数据源的数据集
///
///
///
///数据集DataSet
public DataSet GetDataset(string sqlStr, string TableName)
{
SqlConnection conn = GetConnection();
conn.Open();
SqlDataAdapter adapter = new SqlDataAdapter(sqlStr, conn);
DataSet ds = new DataSet();
adapter.Fill(ds, TableName);
conn.Close();
return ds;
}
///
/// 防止SQL注入
///
///登录名
///登录密码
///
public int check_Login(string loginName, string loginPwd)
{
SqlConnection conn = GetConnection();
SqlCommand cmd = new SqlCommand("select count(*) from tb_User where Name=@loginName and PassWord=@loginPwd", conn);
cmd.Parameters.Add(new SqlParameter("@loginName", SqlDbType.VarChar, 20));
cmd.Parameters["@loginName"].Value = loginName;
cmd.Parameters.Add(new SqlParameter("@loginPwd", SqlDbType.VarChar, 50));
cmd.Parameters["@loginPwd"].Value = loginPwd;
conn.Open();
int i = (int)cmd.ExecuteScalar();
cmd.Dispose();
conn.Close();
return i;
}
///
/// 实现随机验证码
///
///显示验证码的个数
///返回生成的随机数
public string RandomNum(int n)
{
//定义一个包括数字，大小写英文的字符串
string strchar = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
//将strchar字符串转化为数组
//string.Split方法返回包含此实例的子字符串(由指定char数组的元素隔离)的string数组
string[] vcArray = strchar.Split(',');
string vNum = "";
//记录上次随机数值，尽量避免几个一样的随机数
int temp = -1;
//采用一个简单的算法保证生成随机数不同
Random rand = new Random();
for (int i = 1; i < n + 1; i++)
{
if (temp != -1)
{
//unchecked 关键字用于取消整数运算和转换的溢出检查
//DataTime.Ticks 属性火区表示此实例的日期和事件的刻度数
rand = new Random(i * temp * unchecked((int)DateTime.Now.Ticks));
}
//Random.Next 方法返回一个小于所指定最大值的非负随机数
int t = rand.Next(35);
if (temp != -1 && temp == t)
{
return RandomNum(n);
}
temp = t;
vNum += vcArray[t];
}
return vNum;//返回生成的随机数
}
}
Add.aspx 添加信息
添加按钮
protected void btnAdd_Click(object sender, EventArgs e)
{
cc.ExecSQL("insert into tb_News(Title,Content,Style,Type,IssueDate) values ('" + this.txtNewsTitle.Text.Trim() + "','" + this.txtNewsContent.Text.Trim() + "','" + this.labTitle.Text.Trim() + "','" + this.ddlNewsType.SelectedIndex.ToString() + "','" + DateTime.Now.ToString("yyyy-MM-dd") + "')");
Response.Write(cc.MessageBox("添加成功!",""));
}
List.aspx 管理页面（搜索、删除）
public partial class Manager_list : System.Web.UI.Page
{
CommonClass cc = new CommonClass();
public static int InSearch;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//页面初始化时，指定IntSearch=0
InSearch = 0;
int n = Convert.ToInt32(Request.QueryString["id"]);
//指定新闻类别
this.dllNewsStyle.SelectedIndex = (n - 1);
this.bind();
}
}
public void bind()
{
this.gvNewsList.DataSource = cc.GetDataset("select * from tb_News where style='" + this.dllNewsStyle.SelectedValue.Trim() + "' order by id", "tbNews");
this.gvNewsList.DataKeyNames = new string[] { "id" };
this.gvNewsList.DataBind();
}
protected void btnSearch_Click(object sender, EventArgs e)
{
InSearch = 1;
this.searchBind();
}
public void searchBind()
{
//使用like定义字符串
string strSql = "select * from tb_News where style='" + this.dllNewsStyle.SelectedValue.ToString() + "'";
strSql += " and (content like '%" + this.txtKey.Text + "%')";
strSql += " or (Title like '%" + this.txtKey.Text + "%')";
strSql += " and style='" + this.dllNewsStyle.SelectedValue.ToString() + "'";
gvNewsList.DataSource = cc.GetDataset(strSql, "tbNews");
this.gvNewsList.DataKeyNames = new string[] { "id" };
gvNewsList.DataBind();
}
//实现 删除功能
protected void gvNewsList_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
cc.ExecSQL("delete from tb_News where id='" + this.gvNewsList.DataKeys[e.RowIndex].Value.ToString() + "'");
if (InSearch == 1)
{
this.searchBind();
}
else
{
bind();
}
}
//删除 提示
protected void gvNewsList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Cells[5].Attributes.Add("onclick", "return confirm('你确认要删除吗?')");
}
}
//实现 分页
protected void gvNewsList_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
this.gvNewsList.PageIndex = e.NewPageIndex;
if (InSearch == 1)
{
this.searchBind();
}
else
{
bind();
}
}
}
Menu.aspx控件
前台搜索按钮
protected void Page_Load(object sender, EventArgs e)
{
this.labDate.Text = System.DateTime.Now.ToString("yyyy年MM月dd日") + "" + DateTime.Now.DayOfWeek.ToString();
}
protected void btnSearch_Click(object sender, EventArgs e)
{
Session["tool"] = "新闻 ——> 站内查询(" + this.ddlStyle.SelectedValue.Trim() + ")----输入的关键字为“" + this.txtKey.Text.Trim() + "”";
string strSql = "select * from tb_News where style='" + this.ddlStyle.SelectedValue.ToString() + "'";
//strSql += " and (content like '%" + this.txtKey.Text + "%')";
strSql += " and Title like '%" + this.txtKey.Text + "%'";
//strSql += " or issueDate='" + DateTime.Today.ToString() + "'";
Session["search"] = strSql;
Response.Redirect("search.aspx");
//Response.Write(Session["search"].ToString());
}
Newslist.aspx
新闻列表页
根据值 选择 前台显示
当前页码为：
[<asp:Label ID="labPage" runat="server" Text="1">asp:Label>] 总页码为：[<asp:Label
ID="labBackPage" runat="server" Text="">asp:Label>]
<br />
<asp:LinkButton ID="lnktnOne" runat="server" ForeColor="Red"
onclick="lnktnOne_Click">第一页asp:LinkButton>
<asp:LinkButton ID="lnktnUp" runat="server" ForeColor="Red"
onclick="lnktnUp_Click">上一页asp:LinkButton>
<asp:LinkButton ID="lnktnDown" runat="server" ForeColor="Red"
onclick="lnktnDown_Click">下一页asp:LinkButton>
<asp:LinkButton ID="lnktnBack" runat="server" ForeColor="Red"
onclick="lnktnBack_Click">最后一页asp:LinkButton>
Newslist.aspx.cs
DataList 分页
View Code
CommonClass cc = new CommonClass();
protected void Page_Load(object sender, EventArgs e)
{
bind();
}
string strStyle;
public void bind()
{
int n = Convert.ToInt32(Request.QueryString["id"]);
switch (n)
{
case 1: strStyle = "时政要闻";
this.Label1.Text = "新闻网络中心 —> 时政要闻";
this.imageLag.ImageUrl = "~/images/图片时政要闻.jpg";
break;
case 2: strStyle = "经济动向";
this.Label1.Text = "新闻网络中心 —> 经济动向";
break;
default:
break;
}
int curPage = int.Parse(this.labPage.Text);
PagedDataSource ps = new PagedDataSource();
DataSet ds = cc.GetDataset("select * from tb_News where style='" + strStyle + "' order by issueDate Desc", "tbNews");
ps.DataSource = ds.Tables["tbNews"].DefaultView;
//是否分页
ps.AllowPaging = true;
//分页数量
ps.PageSize = 12;
//取得当前页的页码
ps.CurrentPageIndex = curPage - 1;
this.lnktnBack.Enabled = true;
this.lnktnDown.Enabled = true;
this.lnktnOne.Enabled = true;
this.lnktnUp.Enabled = true;
if (curPage ==1)
{
//不显示第一页
this.lnktnOne.Enabled = false;
this.lnktnUp.Enabled = false;
}
if (curPage == ps.PageCount)
{
//不显示下一页
this.lnktnDown.Enabled = false;
this.lnktnBack.Enabled = false;
}
//显示分页数量
this.labBackPage.Text = Convert.ToString(ps.PageCount);
//绑定DataList
this.DataList1.DataSource = ps;
this.DataList1.DataKeyField = "id";
this.DataList1.DataBind();
}
protected void lnktnOne_Click(object sender, EventArgs e)
{
this.labPage.Text = "1";
this.bind();
}
protected void lnktnUp_Click(object sender, EventArgs e)
{
this.labPage.Text = Convert.ToString(Convert.ToInt32(this.labPage.Text) - 1);
this.bind();
}
protected void lnktnDown_Click(object sender, EventArgs e)
{
this.labPage.Text = Convert.ToString(Convert.ToInt32(this.labPage.Text) + 1);
this.bind();
}
protected void lnktnBack_Click(object sender, EventArgs e)
{
this.labPage.Text = this.labBackPage.Text;
this.bind();
}
protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
int id = Convert.ToInt32(DataList1.DataKeys[e.Item.ItemIndex].ToString());
//Response.Write("");
Server.Transfer("shownews.aspx?id='" + id + "'");
Shownews.aspx.cs
新闻内容页
View Code
CommonClass CC = new CommonClass();
protected void Page_Load(object sender, EventArgs e)
{
DataSet ds = CC.GetDataset("select * from tb_News", "tbNews");
DataRow[] row = ds.Tables["tbNews"].Select("id =" + Request.QueryString["id"] + "");
foreach (DataRow rs in row)
{
this.Page.Title = rs["title"].ToString();
this.labTitle.Text = rs["title"].ToString();
this.txtContent.Text = "" + rs["content"].ToString();
}
}
protected void btnClose_Click(object sender, EventArgs e)
{
Response.Write("");
}
Search.aspx
//新闻列表的ID
//int id = Convert.ToInt32(dlNews.DataKeys[e.Item.ItemIndex].ToString());
CommonClass cc = new CommonClass();
protected void Page_Load(object sender, EventArgs e)
{
this.dlNews.DataSource = cc.GetDataset(Convert.ToString(Session["search"]), "tbNews");
this.dlNews.DataKeyField = "id";
this.dlNews.DataBind();
//显示查询条件
this.Label1.Text = Convert.ToString(Session["tool"]);
}
protected void dlNews_ItemCommand(object source, DataListCommandEventArgs e)
{
int id = Convert.ToInt32(dlNews.DataKeys[e.Item.ItemIndex].ToString());
Response.Write("");
}