.net实现页面访问次数统计

数据库准备:建立一个表total里面数据项为totals类型为varchar 50

.net语言环境:C#

global.asax里的代码

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>

<script language="C#" runat="server">
string strSelect;
SqlConnection conPubs;
SqlDataAdapter dadPubs;
DataSet dstTitles;
DataRow drowTitle;

void Session_Start(Object sender , EventArgs e)
{
if ( Application[ "SessionCount" ] == null ) {
Application[ "SessionCount" ] = 0;
strSelect = "SELECT totals From total";
conPubs = new SqlConnection(@"Server=localhost;Integrated Security=SSPI;Database=test");
dadPubs = new SqlDataAdapter(strSelect, conPubs);
dstTitles = new DataSet();
dadPubs.Fill(dstTitles, "total");
drowTitle = dstTitles.Tables["total"].Rows[0];
Application[ "SessionCount" ]=System.Convert.ToInt32(drowTitle["totals"].ToString().Trim());
}
}

void Session_End() {
Application["SessionCount"] = 0;
}

</script>

============================

SessionCount.aspx里的代码

void Page_Load(Object sender , EventArgs e)
{
int total = 0;
string strSelect;
SqlConnection conPubs;
//要执行某项数据操作要用SqlCommand方式调用
SqlCommand cmdSql;

//为了防止同文档里的其他页面在访问时也进行累加运算
int intHits = 0;
intHits = (int)Application["SessionCount"];
intHits += 1;
Application["SessionCount"] = intHits;

lblSessionCount.Text = Application[ "SessionCount" ].ToString();
total = (int)Application["SessionCount"];
strSelect = "update total set totals= @total";
conPubs = new SqlConnection(@"Server=localhost;Integrated Security=SSPI;Database=test");
cmdSql = new SqlCommand(strSelect, conPubs);
cmdSql.Parameters.Add("@total", total);
conPubs.Open();
cmdSql.ExecuteNonQuery();
conPubs.Close();
}
================上段代码有个小问题,就是过了一段时间后,Application["SessionCount"]的值会变成0,而且由于前面设置了一个初始的0,也会连带的把数据库里原来保存的值更新为0起始.

更改后

global.asax

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>

<script language="C#" runat="server">
string strSelect;
SqlConnection conPubs;
SqlDataAdapter dadPubs;
DataSet dstTitles;
DataRow drowTitle;

void Session_Start(Object sender , EventArgs e)
{
if ( Application[ "SessionCount" ] == null ) {
Application[ "SessionCount" ] = 0;
strSelect = "SELECT totals From total";
conPubs = new SqlConnection(@"Server=localhost;Integrated Security=SSPI;Database=test");
dadPubs = new SqlDataAdapter(strSelect, conPubs);
dstTitles = new DataSet();
dadPubs.Fill(dstTitles, "total");
drowTitle = dstTitles.Tables["total"].Rows[0];
Application[ "SessionCount" ]=System.Convert.ToInt32(drowTitle["totals"].ToString().Trim());
}
}

void Session_End() {
Application["SessionCount"] = null;
}

</script>

------------

SessionCount.aspx

<script language="C#" runat="server">

void Page_Load(Object sender , EventArgs e)
{
int total = 0;
string strSelect;
SqlConnection conPubs;
//要执行某项数据操作要用SqlCommand方式调用
SqlCommand cmdSql;

//为了防止同文档里的其他页面在访问时也进行累加运算
int intHits = 0;
intHits = (int)Application["SessionCount"];
intHits += 1;
total = intHits;

lblSessionCount.Text = intHits.ToString();
strSelect = "update total set totals= @total";
conPubs = new SqlConnection(@"Server=localhost;Integrated Security=SSPI;Database=test");
cmdSql = new SqlCommand(strSelect, conPubs);
cmdSql.Parameters.Add("@total", total);
conPubs.Open();
cmdSql.ExecuteNonQuery();
conPubs.Close();
Application["SessionCount"] = null;
}

</script>

---------------

1楼liutiezhu9小时前

不错