Am trying to use log4j in a JSP file.
Have set up a properties file, made an initialisation servlet, added the
servlet to the applications web.xml,
but I can't get my jsp page to log anything. No errors come up, but
nothing is logged into the file.
I have listed all files below.
Suggestions much appreiciated, cheers
Duncan Smith - Decker Telecom Ltd
log4j.lcf:
#---------------------------------------------------------------------------
#define our two catagories
log4j.logger.PM.ErrLog=DEBUG, flErr
#define our appenders
log4j.appender.flErr=org.apache.log4j.FileAppender
log4j.appender.flErr.File=c:\\test1234.log
#Define Layouts
log4j.appender.flErr.layout.layout=org.apache.log4j.SimpleLayout
#---------------------------------------------------------------------------
Logging.java:
//---------------------------------------------------------------------------
package PM;
import org.apache.log4j.PropertyConfigurator;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
public class Logging extends HttpServlet {
public void init() {
String sPrefix = getServletContext().getRealPath("/");
String sFile = getInitParameter("log4j-init-file");
PropertyConfigurator.configure(sPrefix + sFile);
}
public void doGet(HttpServletRequest req, HttpServletResponse
res) {
}
}
//---------------------------------------------------------------------------
Addition to web.xml:
<servlet>
<servlet-name>log4j-init</servlet-name>
<servlet-class>PM.Logging</servlet-class>
<init-param>
<param-name>log4j-init-file</param-name>
<param-value>WEB-INF/classes/log4j.lcf</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
Test.jsp:
<%@ page import="java.text.*,java.util.*,java.io.*" %>
<%@ page import="org.apache.log4j.Logger" %>
<%
Logger lgErr = Logger.getLogger("com.ErrLog");
lgErr.info("hello");
lgErr.error("hello");
lgErr.fatal("hello");
%>
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