C#错误日志记录-优快云博客

本文介绍了一个使用C#实现的错误日志记录系统。该系统通过XML文件存储错误信息，并利用配置文件设置错误日志文件路径。文章详细展示了如何创建错误日志类、结构体及其实现细节。

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using System;

using System.Collections.Generic;

using System.Text;

using System.IO;

using System.Xml;

using System.Web.SessionState;

using System.Data;

using System.Configuration;

using System.Collections;

namespace ynet.cba.WebLogic.YongDian

{

public class errorlog

{

private static errorlog _Instance = null;

private static string strRootName;

private static XmlElement xmlRoot;

private static XmlDocument xmlDoc;

private string errorfile = ((Hashtable)ConfigurationManager.GetSection("errorfile"))["setting1"].ToString();

public errorlog()

{

Load();

}

private bool Load()

{

if (!File.Exists(errorfile))

CreateErrorLogFile(errorfile);

if (xmlDoc == null)

xmlDoc = new XmlDocument();

try

{

xmlDoc.Load(errorfile);

}

catch

{

return false;

}

xmlRoot = xmlDoc.DocumentElement;

if (xmlRoot != null)

strRootName = "/" + xmlRoot.Name + "/";

return true;

}

private void CreateErrorLogFile(string strFileName)

{

StringBuilder sb = new StringBuilder();

sb.Append("<?xml version='1.0' ?> ");

sb.Append("<ERRORLOG>");

sb.Append("</ERRORLOG>");

XmlDocument xmlDoc = new XmlDocument();

xmlDoc.LoadXml(sb.ToString());

xmlDoc.Save(strFileName);

}

private void AddXmlAttribute(XmlElement xNode, string strAttr, string strAttrvalue)

{

XmlAttribute xAttr = (XmlAttribute)xmlDoc.CreateNode(XmlNodeType.Attribute, strAttr, null);

xAttr.InnerText = strAttrvalue;

xNode.Attributes.Append(xAttr);

}

public void SetErrorLog(ErrorLogItem errItem)

{

XmlElement xErrorElement = xmlDoc.CreateElement("error");

AddXmlAttribute(xErrorElement, "username", errItem.User);

AddXmlAttribute(xErrorElement, "application", errItem.AppName);

AddXmlAttribute(xErrorElement, "classname", errItem.ClassName);

AddXmlAttribute(xErrorElement, "functionname", errItem.FunctionName);

AddXmlAttribute(xErrorElement, "position", errItem.Position);

AddXmlAttribute(xErrorElement, "occurtime", errItem.OccurTime.ToString("g"));

xErrorElement.InnerText = errItem.ErrorInfo;

xmlRoot.AppendChild(xErrorElement);

if (xmlRoot.ChildNodes.Count > 1000)

xmlRoot.RemoveChild(xmlRoot.FirstChild);

xmlDoc.Save(errorfile);

}

public static errorlog Instance()

{

if(_Instance == null)

{

_Instance = new errorlog();

}

return _Instance ;

}

public static void LogAppError(string thisErr, string strClass, string strFunc, string strPos, string strUser)

{

ErrorLogItem errItem = new ErrorLogItem();

errItem.AppName = "远能电力抄表管理系统";

errItem.ClassName = strClass;

errItem.ErrorInfo = thisErr;

errItem.FunctionName = strFunc;

errItem.OccurTime = DateTime.Now;

errItem.Position = strPos;

errItem.User = strUser;

try

{

errorlog.Instance().SetErrorLog(errItem);

//SendErrorLogMail(ErrorLogEmail, sb.ToString());

}

catch(Exception ee )

{

throw new Exception("An error occur :"+ ee.Message);

}

finally

{

}

public struct ErrorLogItem

{

public string User;//当前登录人

public string AppName;//应用程序名称

public string ClassName;//错误发生的类名称

public string FunctionName;//错误发生的方法（事件）名称

public string Position;//错误的位置（或其它信息）

public string ErrorInfo;//错误信息

public DateTime OccurTime;//错误发生的时间

}

在web.config中的配置

<?xml version="1.0" encoding="utf-8"?><CONFIGURATION>

</SECTIONGROUP>

</CONFIGSECTIONS>

</CONNECTIONSTRINGS>

错误处理类