asp.net如何动态的获取cpu利用率

调用WINDOWS API
外层放个UPDATEPANLE
在用TIMER去控制
显示用图标吧
VS08里的MSCHART

不用API也行
用 PerformanceCounter(Windows NT 性能计算机器组件)

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="CheckCupAndMemory.aspx.cs"
    Inherits="ChartWeb.CheckCupAndMemory" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:Chart ID="ChartMemory" runat="server" BackColor="LightSteelBlue" BackGradientStyle="TopBottom"
                    BackSecondaryColor="White" EnableTheming="False" EnableViewState="True" Height="363px"
                    Width="415px">
                    <Legends>
                        <asp:Legend Alignment="Center" Docking="Bottom" Name="Legend1" Title="图例">
                        </asp:Legend>
                    </Legends>
                    <Titles>
                        <asp:Title Font="微软雅黑, 16pt" Name="Title1" Text="系统内存监控图表">
                        </asp:Title>
                    </Titles>
                    <Series>
                        <asp:Series BorderColor="White" BorderWidth="3" ChartArea="ChartArea1" ChartType="Spline"
                            Legend="Legend1" Name="已使用物理内存" XValueType="Double" YValueType="Double">
                        </asp:Series>
                        <asp:Series BorderWidth="3" ChartArea="ChartArea1" ChartType="Spline" Legend="Legend1"
                            Name="全部占用内存">
                        </asp:Series>
                        <asp:Series ChartArea="ChartArea2" ChartType="StackedArea" Legend="Legend1" Name="CPU">
                        </asp:Series>
                    </Series>
                    <ChartAreas>
                        <asp:ChartArea BackColor="224, 224, 224" BackGradientStyle="LeftRight" Name="ChartArea1">
                        </asp:ChartArea>
                        <asp:ChartArea Name="ChartArea2">
                        </asp:ChartArea>
                    </ChartAreas>
                </asp:Chart>
                <asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="1000">
                </asp:Timer>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>
    </form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Runtime.InteropServices;
using System.Text;
using System.Diagnostics;
using System.Web.UI.DataVisualization.Charting;namespace ChartWeb
{
    public partial class CheckCupAndMemory : System.Web.UI.Page
    {
        static PerformanceCounter pc = new PerformanceCounter("Processor", "% Processor Time", "_Total");
        protected void Page_Load(object sender, EventArgs e)
        {        }        protected void Timer1_Tick(object sender, EventArgs e)
        {
            MEMORY_INFO MemInfo = new MEMORY_INFO();
            ComputerInfo.GlobalMemoryStatus(ref MemInfo);
            //UseMemory
            Series series = ChartMemory.Series[0];
            int xCount = series.Points.Count == 0 ? 0 : series.Points.Count - 1;
            double lastXValue = series.Points.Count == 0 ? 1 : series.Points[xCount].XValue + 1;
            double lastYValue = (double)(MemInfo.dwTotalPhys - MemInfo.dwAvailPhys) / 1024 / 1024;
            series.Points.AddXY(lastXValue, lastYValue);
            //Total Memory
            series = ChartMemory.Series[1];
            lastYValue = (double)(MemInfo.dwTotalVirtual + MemInfo.dwTotalPhys - MemInfo.dwAvailPhys - MemInfo.dwAvailVirtual) / 1024 / 1024;
            series.Points.AddXY(lastXValue, lastYValue);            //CPU
            series = ChartMemory.Series[2];
            lastYValue = (double)pc.NextValue();
            series.Points.AddXY(lastXValue, lastYValue);            // Remove points from the left chart side if number of points exceeds 100.
            while (this.ChartMemory.Series[0].Points.Count > 80)
            {
                // Remove series points
                foreach (Series s in this.ChartMemory.Series)
                {
                    s.Points.RemoveAt(0);
                }
            }
            // Adjust categorical scale
            double axisMinimum = this.ChartMemory.Series[0].Points[0].XValue;
            this.ChartMemory.ChartAreas[0].AxisX.Minimum = axisMinimum;
            this.ChartMemory.ChartAreas[0].AxisX.Maximum = axisMinimum + 99;        }
        public class ComputerInfo
        {
            /// <summary>
            /// 取得Windows的目录
            /// </summary>
            /// <param name="WinDir"></param>
            /// <param name="count"></param>
            [DllImport("kernel32")]
            public static extern void GetWindowsDirectory(StringBuilder WinDir, int count);
            /// <summary>
            /// 获取系统路径
            /// </summary>
            /// <param name="SysDir"></param>
            /// <param name="count"></param>
            [DllImport("kernel32")]
            public static extern void GetSystemDirectory(StringBuilder SysDir, int count);
            /// <summary>
            /// 取得CPU信息
            /// </summary>
            /// <param name="cpuinfo"></param>
            [DllImport("kernel32")]
            public static extern void GetSystemInfo(ref CPU_INFO cpuinfo);
            /// <summary>
            /// 取得内存状态
            /// </summary>
            /// <param name="meminfo"></param>
            [DllImport("kernel32")]
            public static extern void GlobalMemoryStatus(ref MEMORY_INFO meminfo);
            /// <summary>
            /// 取得系统时间
            /// </summary>
            /// <param name="stinfo"></param>
            [DllImport("kernel32")]
            public static extern void GetSystemTime(ref SYSTEMTIME_INFO stinfo);            public ComputerInfo()
            {            }
        }        //定义CPU的信息结构
        [StructLayout(LayoutKind.Sequential)]
        public struct CPU_INFO
        {
            public uint dwOemId;
            public uint dwPageSize;
            public uint lpMinimumApplicationAddress;
            public uint lpMaximumApplicationAddress;
            public uint dwActiveProcessorMask;
            public uint dwNumberOfProcessors;
            public uint dwProcessorType;
            public uint dwAllocationGranularity;
            public uint dwProcessorLevel;
            public uint dwProcessorRevision;
        }
        //定义内存的信息结构
        [StructLayout(LayoutKind.Sequential)]
        public struct MEMORY_INFO
        {
            public uint dwLength;
            public uint dwMemoryLoad;
            public uint dwTotalPhys;
            public uint dwAvailPhys;
            public uint dwTotalPageFile;
            public uint dwAvailPageFile;
            public uint dwTotalVirtual;
            public uint dwAvailVirtual;
        }
        //定义系统时间的信息结构
        [StructLayout(LayoutKind.Sequential)]
        public struct SYSTEMTIME_INFO
        {
            public ushort wYear;
            public ushort wMonth;
            public ushort wDayOfWeek;
            public ushort wDay;
            public ushort wHour;
            public ushort wMinute;
            public ushort wSecond;
            public ushort wMilliseconds;
        }
    }
}

例子发你邮件了检测内存和CPU利用率的

你那边运行出错了吗我这边有个错误using System.Web.UI.DataVisualization.Charting; 这个找不到我的也是vs2008

必须的那个一个组件你得安装下
MSCHART这组件

我把组件给你发过去了你按下就好了如果按不明白我在把DLL给你。

给我也发一份吧
[email protected]

调试易

asp.net如何动态的获取cpu利用率

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