进程外Session 转载
进程外Session
三种Session： 1.InProc(进程内)-Asp.Net默认就是这种
优点：速度快
缺点：但内存小，存储有限，易爆满导致重启数据丢失
进程外：可以在IIS或ASPNET服务意外关闭时继续保持状态，注意此时存储到session中的对象必须支持序列化：
2.StateServer:使用aspnet_state.exe
2.1开启服务：我的电脑-管理-服务与应用程序-服务-ASP.NET State Service(ASP.NET 状态服务)
2.2修改配置文件： <system.web>节点中添加<sessionState mode="StateServer" stateConnectionString="tcpip=localhost:42424"/>【ASP.NET 状态服务端口号默认：42424】
2.3ASP.NET 状态服务只限本机使用如果需要保存外部的Session需要修改注册表
设置是否允许远程使用，位置：C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRenoteConnection 值改为 1
测试代码如下：
using System;
namespace WebForm {
public partial class OutSession : System.Web.UI. Page {
protected void Page_Load( object sender, EventArgs e) {
if (Session["key" ] != null) {
Person p = (Person )Session[ "key"];
Response.Write(p.GetName());
} else {
Session[ "key" ] = new Person( "piziyimao" );
}
}
}
[ Serializable] //必须是可序列化的类
public class Person {
public Person(string n) {
name = n;
}
private string name;
public string GetName() {
return name;
}
}
}
Web.Config
<? xml version =" 1.0 "?>
< configuration>
< system.web >
< compilation debug = "true " targetFramework = "4.0 " />
< sessionState mode = "StateServer "
stateConnectionString =" tcpip=localhost:42424 "/>
</ system.web >
< connectionStrings >
< add name = "ConnStr " connectionString =" server=.;database=School;uid=sa;pwd=123456 " />
</ connectionStrings >
</ configuration>
3.SQLServer
3.1使用aspnet_regsql.exe运行Session数据库脚本脚本路径C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319
临时储存区：InstallSqlState.sql & UninstallSqlState.sql
永久储存区：InstallPersistSqlState.sql & UninstallPersistSqlState.sql(InstallPersistSqlState需要使用ASPState数据库 需自己创建)
3.2修改配置文件如下：
<? xml version =" 1.0 "?>
< configuration>
< system.web >
< compilation debug = "true " targetFramework = "4.0 " />
< sessionState mode = "SQLServer"/>
</ system.web >
< connectionStrings >
< add name = "ConnStr " connectionString =" server=.;database=School;uid=sa;pwd=123456 " />
</ connectionStrings >
</ configuration>
