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.net页面访问次数统计实现原理与代码

作者：

网站访问量统计、页面访问次数统计，比较实用的一个功能，很多新手朋友都想实现，本文处于此目的整理了一些，感兴趣的朋友可以了解下

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

复制代码 代码如下:

<%@ 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
复制代码 代码如下:

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
复制代码 代码如下:

<%@ 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
复制代码 代码如下:

<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>

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