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/*
* created on 2004-8-15
* 目前log最好的大概是log4j吧，不过在我的运用中,log4j比较难
* 设，设了半天还是不行，特别在tomcat运用中，不知如何可以定
* 义日志文件与项目的相对目录。
* 还有有时想用main做测试时log4j也不工作。
* 一怒之下自己写了个简单的logger
* 你可以自己改改用到你的项目中。
* 调用大概这个 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是一个自己写的取得项目根目录路径的类。
*/
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("<tr bgcolor=\""+scolor[ilevel]+"\">");
out.println("<td>"+now.tolocalestring());
out.println("<td>"+name);
out.println("<td>["+slever][ilevel]+"]");
out.println("<td>"+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("<html>");
out.println("<head>");
out.println("<title>logger</title>");
out.println("<style type=\"text/css\">");
out.println("body,table,td{font-size:12px}");
out.println("");
out.println("");
out.println("</style>");
out.println("</head>");
out.println("<table width=\"96%\" align=\"center\" bgcolor=\"#000000\" cellspacing=\"1\" cellpadding=\"3\">");
out.println("<tr bgcolor=#006699>");
out.println("<th width=130>time</th>");
out.println("<th width=250>from</th>");
out.println("<th width=50>level</th>");
out.println("<th width=*>info</th>");
out.println("</tr>");
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");
}
}
