I am new to using log4j and am getting the standard error "log4j:ERROR No
appenders could be found for category (Actions). log4j:ERROR Please
initialize the log4j system properly." I don't know if this means that
Tomcat, Struts, or the Application (Chiki) is not initialized
properly. The manual has the following for Tomcat, and I don't know if I
should immediately get into that. Could someone kick me to the right place
to start? I did not have this problem with Tomcat 4.1.12, so I assume this
is some difference in Tomcat 4.1.18. However, the error seems to be
related to Struts actions, so I am not sure where to start. Thanks for any
assistance, which I don't really expect, since I have asked this question
before and have not gotten an answer.
package com.foo;
import org.apache.log4j.PropertyConfigurator;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.io.IOException;
public class Log4jInit extends HttpServlet {
public
void init() {
String prefix = getServletContext().getRealPath("/");
String file = getInitParameter("log4j-init-file");
// if the log4j-init-file is not set, then no point in trying
if(file != null) {
PropertyConfigurator.configure(prefix+file);
}
}
public
void doGet(HttpServletRequest req, HttpServletResponse res) {
}
}
Define the following servlet in the web.xml file for your web-application.
<servlet>
<servlet-name>log4j-init</servlet-name>
<servlet-class>com.foo.Log4jInit</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>
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