Problem when using Logger with Tomcat and eclipse

Question

Hi, Iam using Tomcat 5.5.7 and my IDE is eclipse.Iam using java.util.logging.Logger class for logging.Iam putting the properties file in Appname/WEB-INF directory.The properties file is not identified.The error Iam getting is Error initialising log file java.lang.NullPointerException and java.io.FileNot FoundException
The content of my logging.properties file is
java.util.logging.ConsoleHandler java.util.logging.ConsoleHandler.level=SEVERE java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
java.util.logging.FileHandler.level=ALL java.util.logging.FileHandler.pattern=%h/javalogs%u.log java.util.logging.FileHandler.append=true java.util.logging.FileHandler.count=1
My servlet is
import java.io.*;
import java.util.logging.*;
import java.util.logging.Logger;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorldServlet extends HttpServlet
      public void init(ServletConfig config) throws ServletException
           try
                     String file=getServletConfig().getInitParameter("java.util.logging.config.file");
                    InputStream is = getServletContext().getResourceAsStream(file);
                    LogManager.getLogManager().reset();
                      LogManager.getLogManager().readConfiguration(is);
           catch(Exception e)
                System.out.println("Error initialising log file"+e);
      public void doGet (HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException 
               final Logger fLogger =
             Logger.getLogger(HelloWorldServlet.class.getName());
             PrintWriter  out; 
             String title = "Simple Servlet Output";
            // set content type and other response header fields first                                   
            // then write the data of the response
             response.setContentType("text/html");
             fLogger.finest("this is finest");
             fLogger.finer("this is finer");
             fLogger.fine("this is fine");
             fLogger.config("this is config");
             fLogger.info("this is info");
             fLogger.warning("this is a warning");
             fLogger.severe("this is severe");
             out = response.getWriter();
            out.println("<P>This is output from SimpleServlet!!!!!!!!.");  
}My web.xml file is
<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
  "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <servlet>
    <init-param>
     <param-name>java.util.logging.config.file</param-name>
     <param-value>/WEB-INF/classes/logging1.properties</param-value>
    </init-param>
    <servlet-name>HelloServlet</servlet-name>
    <servlet-class>HelloWorldServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>HelloServlet</servlet-name>
    <url-pattern>/hello</url-pattern>
  </servlet-mapping>
</web-app>Can anybody help me out.

Answer 1

Hi, Iam using Tomcat 5.5.7 and my IDE is eclipse.Iam using java.util.logging.Logger class for logging.Iam putting the properties file in Appname/WEB-INF directory.The properties file is not identified.The error Iam getting is Error initialising log file java.lang.NullPointerException and java.io.FileNot FoundException
The content of my logging.properties file is
java.util.logging.ConsoleHandler java.util.logging.ConsoleHandler.level=SEVERE java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
java.util.logging.FileHandler.level=ALL java.util.logging.FileHandler.pattern=%h/javalogs%u.log java.util.logging.FileHandler.append=true java.util.logging.FileHandler.count=1
My servlet is
import java.io.*;
import java.util.logging.*;
import java.util.logging.Logger;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorldServlet extends HttpServlet
      public void init(ServletConfig config) throws ServletException
           try
                     String file=getServletConfig().getInitParameter("java.util.logging.config.file");
                    InputStream is = getServletContext().getResourceAsStream(file);
                    LogManager.getLogManager().reset();
                      LogManager.getLogManager().readConfiguration(is);
           catch(Exception e)
                System.out.println("Error initialising log file"+e);
      public void doGet (HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException 
               final Logger fLogger =
             Logger.getLogger(HelloWorldServlet.class.getName());
             PrintWriter  out; 
             String title = "Simple Servlet Output";
            // set content type and other response header fields first                                   
            // then write the data of the response
             response.setContentType("text/html");
             fLogger.finest("this is finest");
             fLogger.finer("this is finer");
             fLogger.fine("this is fine");
             fLogger.config("this is config");
             fLogger.info("this is info");
             fLogger.warning("this is a warning");
             fLogger.severe("this is severe");
             out = response.getWriter();
            out.println("<P>This is output from SimpleServlet!!!!!!!!.");  
}My web.xml file is
<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
  "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <servlet>
    <init-param>
     <param-name>java.util.logging.config.file</param-name>
     <param-value>/WEB-INF/classes/logging1.properties</param-value>
    </init-param>
    <servlet-name>HelloServlet</servlet-name>
    <servlet-class>HelloWorldServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>HelloServlet</servlet-name>
    <url-pattern>/hello</url-pattern>
  </servlet-mapping>
</web-app>Can anybody help me out.