/*
* Created on 2004-8-15
* 目前Log最好的大概是log4j吧，不過在我的運用中,log4j比較難
* 設，設了半天還是不行，特別在tomcat運用中，不知如何可以定
* 義日志文件與項目的相對目錄。
* 還有有時想用main做測試時log4j也不工作。
* 一怒之下自己寫了個簡單的logger
* 你可以自己改改用到你的項目中。
* 調用大概這個 private MyLogger log= MyLogger.getLogger(name);
* 或 private MyLogger log= MyLogger.getLogger(className.class);
* 其它的和log4j差不多了
* log.debug(message);
* log.info(message);
* log.warn(message);
* log.error(message);
* 注意:SystemPath是一個自己寫的取得項目根目錄路徑的類。
*/
package net.ftiger.mis.tools.log;
import Java.io.File;
import Java.io.FileWriter;
import Java.io.IOException;
import Java.io.PrintWriter;
import Java.util.Date;
import Java.util.HashMap;
import net.ftiger.mis.tools.SystemPath;
/**
* @author Ftiger
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
* Date 2004-8-15
*/
public class MyLogger
{
private static HashMap instances = null;
private String name;
private static String logFilePath = "d:\\";
private static int level =0;
private static String[] sLever = {"debug","info ","warn ","error"};
private static String[] sColor = {"#eeeeee","green","yellow","red"};
private MyLogger(String name)
{
this.name = name;
}
public synchronized static MyLogger getLogger(Class cll)
{
String name = cll.getName();
return getLogger(name);
}
public synchronized static MyLogger getLogger(String name)
{
if (instances==null)
{
init();
}
Object obj = instances.get(name);
if (obj ==null)
{
MyLogger instance = new MyLogger(name);
instances.put(name,instance);
return instance;
}
else
{
return (MyLogger) obj;
}
}
private static void init()
{
instances= new HashMap();
logFilePath = SystemPath.getSystemPath("\\WEB-INF\\logs\\");
}
private void log(String message, int iLevel)
{
if (iLevel< level)
return;
Date now = new Date();
StringBuffer sLog = new StringBuffer("");
sLog.append(now.toLocaleString());
sLog.append(" ["+sLever][iLevel]+"] ");
sLog.append(message);
sLog.append("["+name+"]:");
System.out.println(sLog.toString());
//System.out.println(logFilePath);
if (logFilePath==null)
{
return;
}
String logFileName=logFilePath + now.getYear()+"_"+now.getMonth()+"_"+now.getDate()+"log.htm";
//System.out.println("logFileName="+logFileName);
File logFile = new File(logFileName);
if (!logFile.exists())
createNewFile(logFileName);
try
{
FileWriter writer = new FileWriter(logFileName,true);
PrintWriter out = new PrintWriter(writer);
out.println("");
out.println(""+now.toLocaleString());
out.println(""+name);
out.println("["+sLever][iLevel]+"]");
out.println(""+message);
out.close();
writer.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace(System.out);
}
}
private void createNewFile(String fileName)
{
try
{
System.out.println(fileName);
FileWriter writer = new FileWriter(fileName,false);
PrintWriter out = new PrintWriter(writer);
out.println("");
out.println("");
out.println("");
out.println("");
out.println("");
out.println("
");out.println("
");out.println("
");out.println("
");out.println("
");out.println("
");out.println("
");out.println("");
out.close();
writer.close();
}
catch (IOException e)
{
e.printStackTrace(System.out);
}
}
public void debug ( String message )
{
log(message,0);
}
public void info ( String message )
{
log(message,1);
}
public void warn ( String message )
{
log(message,2);
}
public void error (String message )
{
log(message,3);
}
public static void main(String[] args)
{
MyLogger log=MyLogger.getLogger(MyLogger.class);
log.debug("ok");
log.info("info ok");
log.warn("warn ok");
log.error("error ok");
}
}
