磁盘剩余：代码实现
摘要：
1、系统运维中，需要不定时监控和查看服务器的磁盘剩余空间
2、现在自动化运维工具中，有zabbix可以解决，这里不做展开，这里是代码手段的解决方案
3、关键代码有：
（1）获得磁盘剩余值
（1）获得磁盘剩余值
（2）磁盘空间大小KB到GB的转换
（3）安全鉴权操作
原文链接：
http://www.lookdaima.com/page/docItemDetail.html?id=48e4cd1b-71a4-42f0-b9e5-fd584efffa2b
界面效果：
关键代码：
磁盘空间大小显示的转换
#region FileSizeGetText|文件大小转成MB/GB等内容显示(如:123MB) /// <summary> /// 获得文件大小的标签提示 - FileSizeGetLengthName /// </summary> /// <param name="fileRate">文件倍数</param> /// <returns></returns> protected string FileSizeGetLengthName(int fileRate) { switch (fileRate) { case 0: return ""; case 1: return "KB"; case 2: return "MB"; case 3: return "GB"; case 4: return "TB"; default: return "TB"; } } /// <summary> /// 文件大小获得提示文字 - FileSizeGetText /// </summary> /// <param name="fileLength">文件大小|如:1024012</param> /// <returns></returns> protected string FileSizeGetText(long fileLength) { double dLen = (double)fileLength; int fileRate = 0; while (fileRate < 5) { if (dLen < 1024) break; ++fileRate; dLen = dLen / 1024; } dLen = Math.Round(dLen, 2); return dLen.ToString() + FileSizeGetLengthName(fileRate); } #endregion FileSizeGetText|文件大小转成MB/GB等内容显示(如:123MB)
获得磁盘和磁盘信息
System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives(); foreach (System.IO.DriveInfo drive in drives) { tbSb.AppendLine("<tr>"); strTmp = IoDrawDriveInfoTdHtml(true, drive.Name, "center"); tbSb.AppendLine(strTmp); strTmp = IoDrawDriveInfoTdHtml(true, drive.VolumeLabel, "center"); tbSb.AppendLine(strTmp); strTmp = FileSizeGetText(drive.TotalFreeSpace); strTmp = IoDrawDriveInfoTdHtml(true, strTmp, "center"); tbSb.AppendLine(strTmp); strTmp = FileSizeGetText(drive.TotalSize); strTmp = IoDrawDriveInfoTdHtml(true, strTmp, "center"); tbSb.AppendLine(strTmp); tbSb.AppendLine("</tr>"); }
判断是否访问的权限
#region 判断是否访问的权限 /// <summary> /// 判断是否访问的权限 /// </summary> /// <param name="isRedirect">权限校验失败，是否重定向到指定提示页面</param> /// <returns></returns> protected override bool CheckPower(bool isRedirect) { //if (Request.IsLocal) // return true; WebUtil wu = WebUtil.GetWebUtilInstance(); bool adminFlag = wu.UserIsAdmin(null); if (adminFlag) return true; string userName = Request.QueryString["UserName"]; string userPwd = Request.QueryString["UserPwd"]; string sign = Request.QueryString["Sign"]; eKing.EkUtil.Helpers.eKingEkUtilHelper eku = eKing.EkUtil.Helpers.eKingEkUtilHelper.GetInstance(); string md5 = eku.GetGB2312MD5(userName + userPwd + MD5_KEY); if (sign != md5) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } eKing.BmLib.Business.User.UTB_BM_USER_ITEM bll = eKing.BmLib.Business.User.UTB_BM_USER_ITEM.GetInstance(); eKing.BmLib.Model.User.UTB_BM_USER_ITEM model = bll.GetModelByUserName(userName, null); if (model == null) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } string md5Pwd = eku.GetGB2312MD5(model.UserName + model.UserPwd + MD5_KEY); if (md5Pwd != userPwd) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } return true; } #endregion 判断是否访问的权限
完整代码
aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="WebForms_WebPages_Blanks_Common_SysAdms_SysInfos_Drives_Default" ValidateRequest="false" %> <!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> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title> <%=WebPageTitle %></title> <link href="<%=strPhyPath %>/css/PM.css?v=20170909" rel="stylesheet" media="all" /> <script language="javascript" type="text/javascript" src="<%=strPhyPath %>/js/My97DatePicker/WdatePicker.js"></script> <script language="javascript" type="text/javascript" src="<%=strPhyPath %>/JS/PM.js"></script> </head> <body style="padding: 5px;"> <form id="form1" runat="server"> <asp:Literal ID="lt_Html" runat="server"></asp:Literal> </form> </body> </html>
aspx.cs
using System; using System.Reflection; using System.Web.UI.WebControls; using SlowX.DAL.Helpers; using SlowX.Core.ICoreClasses; using eKing.EkWeb.Classes.PageParams; using eKing.EkUtil.Helpers; using eKing.EkWebUtil.Helpers; using SlowX.Core.Classes.ShowDatas; using System.Text; public partial class WebForms_WebPages_Blanks_Common_SysAdms_SysInfos_Drives_Default : PageBase { private const string MD5_KEY = "******"; #region FileSizeGetText|文件大小转成MB/GB等内容显示(如:123MB) /// <summary> /// 获得文件大小的标签提示 - FileSizeGetLengthName /// </summary> /// <param name="fileRate">文件倍数</param> /// <returns></returns> protected string FileSizeGetLengthName(int fileRate) { switch (fileRate) { case 0: return ""; case 1: return "KB"; case 2: return "MB"; case 3: return "GB"; case 4: return "TB"; default: return "TB"; } } /// <summary> /// 文件大小获得提示文字 - FileSizeGetText /// </summary> /// <param name="fileLength">文件大小|如:1024012</param> /// <returns></returns> protected string FileSizeGetText(long fileLength) { double dLen = (double)fileLength; int fileRate = 0; while (fileRate < 5) { if (dLen < 1024) break; ++fileRate; dLen = dLen / 1024; } dLen = Math.Round(dLen, 2); return dLen.ToString() + FileSizeGetLengthName(fileRate); } #endregion FileSizeGetText|文件大小转成MB/GB等内容显示(如:123MB) /// <summary> /// 绘制td或th /// </summary> /// <param name="tdFlag"></param> /// <param name="cellText"></param> /// <param name="align"></param> /// <returns></returns> protected string IoDrawDriveInfoTdHtml(bool tdFlag, string cellText, string align) { if (align == null || align.Length == 0) { align = "left"; } if (tdFlag) { return @"<td align=""" + align + @""" height=""30px"">" + cellText + "</td>"; } else { return @"<th align=""" + align + @""" height=""30px"">" + cellText + "</th>"; } } /// <summary> /// 绘制磁盘空间大小的HTML /// </summary> /// <returns></returns> public string IoDrawDriveInfoTableHtml() { string strTmp = null; StringBuilder tbSb = new StringBuilder(); tbSb.AppendLine("<table class=\"table-oneline\" style=\"width:99%;\">"); tbSb.AppendLine("<tbody>"); tbSb.AppendLine("<tr>"); strTmp = IoDrawDriveInfoTdHtml(false, "磁盘", "center"); tbSb.AppendLine(strTmp); strTmp = IoDrawDriveInfoTdHtml(false, "标签", "center"); tbSb.AppendLine(strTmp); strTmp = IoDrawDriveInfoTdHtml(false, "可用空间", "center"); tbSb.AppendLine(strTmp); strTmp = IoDrawDriveInfoTdHtml(false, "总空间", "center"); tbSb.AppendLine(strTmp); tbSb.AppendLine("</tr>"); System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives(); foreach (System.IO.DriveInfo drive in drives) { tbSb.AppendLine("<tr>"); strTmp = IoDrawDriveInfoTdHtml(true, drive.Name, "center"); tbSb.AppendLine(strTmp); strTmp = IoDrawDriveInfoTdHtml(true, drive.VolumeLabel, "center"); tbSb.AppendLine(strTmp); strTmp = FileSizeGetText(drive.TotalFreeSpace); strTmp = IoDrawDriveInfoTdHtml(true, strTmp, "center"); tbSb.AppendLine(strTmp); strTmp = FileSizeGetText(drive.TotalSize); strTmp = IoDrawDriveInfoTdHtml(true, strTmp, "center"); tbSb.AppendLine(strTmp); tbSb.AppendLine("</tr>"); } tbSb.AppendLine("</tbody>"); tbSb.AppendLine("</table>"); return @" <style type=""text/css""> .table-oneline { -moz-border-bottom-colors: none; -moz-border-left-colors: none; -moz-border-right-colors: none; -moz-border-top-colors: none; border-collapse: collapse; border-color: #ccc; border-image: none; border-style: solid; border-width: 1px 0 0 1px; margin-top: 5px; } .table-oneline th, .table-oneline td { -moz-border-bottom-colors: none; -moz-border-left-colors: none; -moz-border-right-colors: none; -moz-border-top-colors: none; border-color: #ccc; border-image: none; border-style: solid; border-width: 0 1px 1px 0; padding: 6px; } </style> " + tbSb.ToString(); } /// <summary> /// 判断是否登录的权限 /// </summary> /// <param name="isRedirect">权限校验失败，是否重定向到指定提示页面</param> /// <returns></returns> protected override bool CheckPower(bool isRedirect) { //if (Request.IsLocal) // return true; WebUtil wu = WebUtil.GetWebUtilInstance(); bool adminFlag = wu.UserIsAdmin(null); if (adminFlag) return true; string userName = Request.QueryString["UserName"]; string userPwd = Request.QueryString["UserPwd"]; string sign = Request.QueryString["Sign"]; eKing.EkUtil.Helpers.eKingEkUtilHelper eku = eKing.EkUtil.Helpers.eKingEkUtilHelper.GetInstance(); string md5 = eku.GetGB2312MD5(userName + userPwd + MD5_KEY); if (sign != md5) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } eKing.BmLib.Business.User.UTB_BM_USER_ITEM bll = eKing.BmLib.Business.User.UTB_BM_USER_ITEM.GetInstance(); eKing.BmLib.Model.User.UTB_BM_USER_ITEM model = bll.GetModelByUserName(userName, null); if (model == null) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } string md5Pwd = eku.GetGB2312MD5(model.UserName + model.UserPwd + MD5_KEY); if (md5Pwd != userPwd) { if (isRedirect) { Response.Redirect(strPhyPath + "/userlogin.aspx"); } return false; } return true; } /// <summary> /// 页面加载 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void Page_Load(object sender, EventArgs e) { if (!CheckPower(true)) return; if (!this.IsPostBack) { string tbHtml = IoDrawDriveInfoTableHtml(); lt_Html.Text = tbHtml; } CurPageTitle = "查看看服务器磁盘空间剩余"; // DebugOper(); } }
