". NET" Log4net writes the operation log to the database

configuration file can refer to the ". NET" Log4net profile resolution in the previous blog post .

First in Global . aspx add such a code to the , to read the configuration file , Initialize log4net the Environment .

public class Global:System.Web.HttpApplication    {        protected void Application_Start (object sender, EventArgs e)        {            log4net. Config.XmlConfigurator.Configure ();        }

Create a newLogfolder,The required classes under the log are built under this folder.develop a good habit of coding.be aware that the namespaces for these classes must be consistent.

first oneLogMessageclass.

This class includes a custom attribute , is all the fields to write to the database , corresponds to the configuration file Insert the contents of the statement .

Using system.web;using system.web.sessionstate;namespace logdb{//<summary>///logmessage Summary description///</ Summary> public class Logmessage:irequiressessionstate {public LogMessage () {} public Logmessag E (String UserID, String username,string ip,string clazz,string method,string result) {This.userid = use            RID;            This.username = Username;            This.ip = IP;            This.clazz = Clazz;            This.method = method;                    This.result = result;        } private string UserID;            public string Userid {get {return Userid;}        set {UserID = value;}        } private string Username;            public string Username {get {return Username;}        set {username = value;}        } private string IP;            public string IP {get{return IP;}        Set{ip=value;}  } private string Clazz;      public string Clazz {Get{return clazz;}        Set{clazz=value;}        } private String method;            public string Method {Get{return method;}        Set{method=value;}        } private string result;            public string Result {get {return Result;}        set {result = value;} }    }}

a secondCustomLayoutclass.

This class customizes the log output type , The idea is to put the custom fields into the Hashtable , How many custom fields are written ADD Number of , the field name and configuration file remain the same , the namespaces and configuration files here correspond to the following sections .

Using system;using system.collections;using system.io;using log4net. Core;using log4net. Layout.pattern;using log4net. Util;using log4net. Layout;namespace logdb{public class customlayout:log4net.        Layout.layoutskeleton {Public const string defaultconversionpattern = "%message%newline";        Public Const string Detailconversionpattern = "%timestamp [%thread]%level%logger%NDC-%message%newline";        private static Hashtable s_globalrulesregistry;        private string M_pattern;        Private Patternconverter M_head;         Private Hashtable m_instancerulesregistry = new Hashtable ();            Static CustomLayout () {s_globalrulesregistry = new Hashtable (6);            S_globalrulesregistry.add ("username", typeof (Usernamepatternconverter));            S_globalrulesregistry.add ("userid", typeof (Useridpatternconverter));            S_globalrulesregistry.add ("IP", typeof (Ippatternconverter)); S_globalrulesregistry.add ("Clazz", typeof (ClazzpatTernconverter));            S_globalrulesregistry.add ("Method", typeof (Methodpatternconverter));        S_globalrulesregistry.add ("Result", typeof (Resultpatternconverter)); }//--------------------------------------------------------------------public customlayout (): This (Defaultconversionpattern) {} public CustomLayout (string pattern) {Ignoresexception            = true;            M_pattern = pattern;            if (M_pattern = = null) {M_pattern = Defaultconversionpattern;        } activateoptions ();            } public string Conversionpattern {get {return m_pattern;}        set {M_pattern = value;} }///<summary>///Convert values in hashtable///</summary>//<param name= "pattern" & gt;</param>//<returns></returns> virtual protected Patternparser Createpatternparser (St Ring PAttern) {Patternparser patternparser = new Patternparser (pattern); foreach (DictionaryEntry entry in s_globalrulesregistry) {Patternparser.patternconverters[entry . Key] = entry.            Value; } foreach (DictionaryEntry entry in m_instancerulesregistry) {PATTERNPARSER.PATTERNC Onverters[entry. Key] = entry.            Value;        } return patternparser; } override public void Activateoptions () {m_head = Createpatternparser (M_pattern).            Parse ();            Patternconverter curconverter = M_head; while (curconverter! = null) {Patternlayoutconverter layoutconverter = Curconverter as Patternl                Ayoutconverter;                    if (layoutconverter! = null) {if (!layoutconverter.ignoresexception) {this.                        Ignoresexception = false; BreaK            }} curconverter = Curconverter.next;  }} override public void Format (TextWriter writer, loggingevent loggingevent) {if (writer            = = null) {throw new ArgumentNullException ("writer");            } if (loggingevent = = null) {throw new ArgumentNullException ("Loggingevent");            } patternconverter C = M_head;                while (c! = null) {C.format (writer, loggingevent);            c = C.next; }} public void Addconverter (Converterinfo converterinfo) {addconverter (Converterinfo.nam        E, Converterinfo.type); } public void Addconverter (string name, type type) {if (name = = null) throw new ARGUMENTNULLEXCE            Ption ("name");            if (type = = null) throw new ArgumentNullException ("type"); if (!typeof (PatterNconverter). IsAssignableFrom (type)) {throw new ArgumentException ("The converter type specified [" + Type + "] must be a subclass of Log4net.            Util.patternconverter "," type ");        } M_instancerulesregistry[name] = type;            } public sealed class Converterinfo {private string m_name;            Private Type M_type;                Public Converterinfo () {} public string Name {get {return m_name;}            set {m_name = value;}                } public Type type {get {return m_type;}            set {M_type = value;} }        }    }}

and then the Useridpatternconverter ./Usernamepatternconverter/Ippatternconverter A series of classes.How many custom fields have a number of classes,and theCustomLayoutstay consistent below.

Logutilclass.

Logutil class encapsulates the method of logging , Common External calls , parameters define fields for each , Method Body Call Log 4net the method .

A summary description of the Using log4net;///<summary>///logutil//</summary>public class logutil{public    logutil ()    {    }    Private Logdb.logmessage message = NULL;    public void Writelog (string strloggername, String UserID, String username,string ip,string clazz,string method,string Res Ult)    {        log4net. ILog log = log4net. Logmanager.getlogger (strloggername);        message = new Logdb.logmessage (UserID, Username,ip,clazz,method,result);//Used to field auxiliary class        log. Info (message);}    }

test our project..

Add default . aspx, writing tests in the background code :

namespace logdb{public    partial class Default:System.Web.UI.Page    {        protected void Page_Load (object sender , EventArgs e)        {            Logutil logutil = new Logutil ();            Logutil.writelog ("Authoritysystem", "1", "1", "1", "1", "1", "1");            Logutil.writelog ("Basesystem", "1", "1", "1", "1", "1", "1");            Logutil.writelog ("Examsystem", "1", "1", "1", "1", "1", "1");            Logutil.writelog ("Evaluationsystem", "1", "1", "1", "1", "1", "1");            Logutil.writelog ("Freshsystem", "1", "1", "1", "1", "1", "1");}}}    

Run after build , all the operations are recorded in the database. , 5 each subsystem log is recorded in the 5 in the table .

". NET" Log4net writes the operation log to the database