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Struts & Hibernate
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| | | Logging Problem with unpackWARs= "false " | Logging Problem with unpackWARs= "false " 2006-12-21 - By James Dekker
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Hello there,
Am using JDK 1.5 and Tomcat 5.5.9...
I have two init servlets for the following purposes:
1. One is for logging
2. The other is for loading (and parsing) XML based configuration
files using Commons Digester.
When I go to %CATALINA_HOME%/conf/server.xml and inside the <HOST>
tag, when I set the unpackWars attribute to false, I see a bunch of
null values inside where my logging is supposed to be set!
If I set it to true, everything works well!
e.g. when I set unpackWars = false, redeploy my app, and then start
Tomcat this is what I get:
Dec 21, 2006 1:20:47 PM org.apache.coyote.http11.Http11Protocol  init
INFO: Initializing Coyote HTTP/1.1 on http-8080 (See http://ttp-8080.ora-code.com)
Dec 21, 2006 1:20:47 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 875 ms
Dec 21, 2006 1:20:48 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 21, 2006 1:20:48 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.9
Dec 21, 2006 1:20:48 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Dec 21, 2006 1:20:48 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive mysampleapp.war
log4j.properties not found,
C:\DevTools\tomcat\jakarta-tomcat-5 (See http://cat-5.ora-code.com).5.9\bin\nullWEB-INF\log4j.properties
attributes-config.xml not found,
C:\DevTools\tomcat\jakarta-tomcat-5 (See http://cat-5.ora-code.com).5.9\bin\nullWEB-INF\attributes-config.xml
My %CATALINA_HOME% is c:\DevTool\tomcat\jakarta-tomcat-5 (See http://cat-5.ora-code.com).5.9\
and when I deploy my application, its supposed to auto load these
particular files inside %CATALINA_HOME%\myapp\WEB-INF, but since I
didn't want to unpack my war files, it puts that weird nullWEB-INF
inside the particular path!?
Does this mean that I can't have my servlets load init params unless
my war files is always unpacked?
Here's some code for your review:
<!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>
<display-name>MySampleApp</display-name>
<description>
MySampleApp
</description>
<servlet>
<servlet-name>MySampleAppServlet</servlet-name>
<servlet-class>com.acme.MySampleAppServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MySampleAppServlet</servlet-name>
<url-pattern>/app</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>log4j-init</servlet-name>
<servlet-class>com.acme.logging.Log4jInitServlet</servlet-class>
<init-param>
<param-name>log4j-init-file</param-name>
<param-value>WEB-INF\log4j.properties</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>xml-config-init</servlet-name>
<servlet-class>com.acme.config.XmlConfigInitServlet</servlet-class>
<init-param>
<param-name>xml-config-file</param-name>
<param-value>WEB-INF\attributes-config.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
</web-app>
package com.acme.logging;
import java.io.File ;
import javax.servlet.ServletException ;
import javax.servlet.http.HttpServlet ;
import org.apache.log4j.PropertyConfigurator ;
public class Log4jInitServlet extends HttpServlet {
public void init() throws ServletException {
String prefix = getServletContext().getRealPath("/");
String file = getInitParameter("log4j-init-file");
File propFile = new File(prefix+file);
if(!propFile.exists()){
System.out.println("log4j.properties not found, " +
propFile.getAbsolutePath());
}
PropertyConfigurator.configureAndWatch(propFile.getAbsolutePath(),10000
);
}
}
package com.acme.config;
import java.io.File ;
import javax.servlet.ServletException ;
import javax.servlet.http.HttpServlet ;
import org.apache.log4j.Logger ;
import com.acme.AttributeBeanXmlConfigHelper;
public class XmlConfigInitServlet extends HttpServlet {
public void init() throws ServletException {
String prefix = getServletContext().getRealPath("/");
String file = getInitParameter("xml-config-file");
File xmlConfigFile = new File(prefix + file);
if (!xmlConfigFile.exists()) {
System.out.println("attributes-config.xml not found, "
+ xmlConfigFile.getAbsolutePath());
}
try {
// Configure Digester from XML ruleset
AttributeBeanXmlConfigHelper.parse(xmlConfigFile);
Logger.getLogger(this.getClass()).warn("Finished parsing the config file.");
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
Has anyone experienced the same kind of thing?
Happy holidays,
JD
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