Comments on: Java Servlet Filter tutorial example using Eclipse & Tomcat http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html Tutorials, Java, J2EE, Struts, AJAX, JavaScript, CSS, Web 2.0, MySQL, Articles Sun, 14 Mar 2010 11:27:38 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Paras Jotangiya http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-12274 Paras Jotangiya Thu, 11 Mar 2010 13:42:10 +0000 http://viralpatel.net/blogs/?p=606#comment-12274 Hi Viral , First of i am thanking you to give nice example. And I want to ask one questions . where r u from?? Gujarat?? Hi Viral ,
First of i am thanking you to give nice example. And I want to ask one questions .
where r u from?? Gujarat??

]]> By: Hao Nhien http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-12270 Hao Nhien Thu, 11 Mar 2010 04:38:56 +0000 http://viralpatel.net/blogs/?p=606#comment-12270 Hi Viral, What a good job u've done. I have something to ask you. This example is ok when I run the first time, but when I run the second time, I didn't get the IP as well as the time. I guess the problem because of there's nothing in destroy method, and we need to put something there to run example again, is that right? (when I close my eclipse and open again and run the example again, then it's ok). Thank you very much for your article and look forward to hearing from your answer. Thanks a lot Hi Viral,
What a good job u’ve done. I have something to ask you. This example is ok when I run the first time, but when I run the second time, I didn’t get the IP as well as the time. I guess the problem because of there’s nothing in destroy method, and we need to put something there to run example again, is that right? (when I close my eclipse and open again and run the example again, then it’s ok). Thank you very much for your article and look forward to hearing from your answer. Thanks a lot

]]> By: Ghada http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-12037 Ghada Sun, 07 Feb 2010 09:24:51 +0000 http://viralpatel.net/blogs/?p=606#comment-12037 Nice article.Thanks Nice article.Thanks

]]> By: George http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11970 George Fri, 22 Jan 2010 13:44:46 +0000 http://viralpatel.net/blogs/?p=606#comment-11970 Hi Viral, Yes! Silly of me that I was doing Cut n Paste the code. If I was to type I would have noticed the small typo (Missing s in filter(s)). Amazing but always true - the devil is in the details...LOL Then as Brian wrote on 19 December, 2009, 10:43: "Remember that a Filter is an interface component, and not a Servlet, so in order for it to render output to the browser, you will want to map it to a Servlet." it still has a reason to tgrow a 404. But as it prints in the console it's OK for now. I will try writting some code now to build some experience as I am new to Http Sessions and have to learn, so I later come up with more constructive questions.. Thanks for the quick reply (and the correction to the listing..) George Hi Viral,
Yes! Silly of me that I was doing Cut n Paste the code. If I was to type I would have noticed the small typo (Missing s in filter(s)).
Amazing but always true – the devil is in the details…LOL

Then as Brian wrote on 19 December, 2009, 10:43:
“Remember that a Filter is an interface component, and not a Servlet, so in order for it to render output to the browser, you will want to map it to a Servlet.” it still has a reason to tgrow a 404.
But as it prints in the console it’s OK for now.

I will try writting some code now to build some experience as I am new to Http Sessions and have to learn, so I later come up with more constructive questions..

Thanks for the quick reply (and the correction to the listing..)
George

]]> By: Viral Patel http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11968 Viral Patel Fri, 22 Jan 2010 11:29:11 +0000 http://viralpatel.net/blogs/?p=606#comment-11968 Hi George, There was a type error in my web.xml. I have updated the code. Here is the change. <pre class="brush: xml;"> <filter-class> net.viralpatel.servlet.filters.LogFilter </filter-class> </pre> I have changed net.viralpatel.servlet.<b>filter</b>.LogFilter to net.viralpatel.servlet.<b>filters</b>.LogFilter. Hi George, There was a type error in my web.xml. I have updated the code. Here is the change.


	        net.viralpatel.servlet.filters.LogFilter

I have changed net.viralpatel.servlet.filter.LogFilter to net.viralpatel.servlet.filters.LogFilter.

]]> By: George http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11967 George Fri, 22 Jan 2010 10:33:21 +0000 http://viralpatel.net/blogs/?p=606#comment-11967 Hi Viral, Similar to what Russell Bateman wrote on 27 April, 2009, 21:28, I get the following along with HTTP Status 404 from Eclipse console: Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.Digester endElement WARNING: No rules found matching 'Server/Service/Engine/Host/Content'. Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:ADCDemo' did not find a matching property. Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:ServletFilterProject' did not find a matching property. Jan 22, 2010 12:27:20 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre6\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Apache Software Foundation\Tomcat 6.0;C:\Program Files\Java\jre6;C:\Program Files\Java\jdk1.6.0_16 Jan 22, 2010 12:27:20 PM org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 Jan 22, 2010 12:27:20 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 270 ms Jan 22, 2010 12:27:20 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Jan 22, 2010 12:27:20 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.18 Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext filterStart SEVERE: Exception starting filter LogFilter java.lang.ClassNotFoundException: net.viralpatel.servlet.filter.LogFilter at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:249) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:108) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext start SEVERE: Error filterStart Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext start SEVERE: Context [/ServletFilterProject] startup failed due to previous errors Jan 22, 2010 12:27:21 PM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Jan 22, 2010 12:27:21 PM org.apache.jk.common.ChannelSocket init INFO: JK: ajp13 listening on /0.0.0.0:8009 Jan 22, 2010 12:27:21 PM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=0/16 config=null Jan 22, 2010 12:27:21 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 213 ms Any help? Thanks Hi Viral,
Similar to what Russell Bateman wrote on 27 April, 2009, 21:28, I get the following along with HTTP Status 404 from Eclipse console:

Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.Digester endElement
WARNING: No rules found matching ‘Server/Service/Engine/Host/Content’.
Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property ’source’ to ‘org.eclipse.jst.j2ee.server:ADCDemo’ did not find a matching property.
Jan 22, 2010 12:27:20 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property ’source’ to ‘org.eclipse.jst.jee.server:ServletFilterProject’ did not find a matching property.
Jan 22, 2010 12:27:20 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre6\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Apache Software Foundation\Tomcat 6.0;C:\Program Files\Java\jre6;C:\Program Files\Java\jdk1.6.0_16
Jan 22, 2010 12:27:20 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Jan 22, 2010 12:27:20 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 270 ms
Jan 22, 2010 12:27:20 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Jan 22, 2010 12:27:20 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.18
Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter LogFilter
java.lang.ClassNotFoundException: net.viralpatel.servlet.filter.LogFilter
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:249)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4363)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Jan 22, 2010 12:27:21 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [/ServletFilterProject] startup failed due to previous errors
Jan 22, 2010 12:27:21 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Jan 22, 2010 12:27:21 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jan 22, 2010 12:27:21 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/16 config=null
Jan 22, 2010 12:27:21 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 213 ms

Any help?
Thanks

]]> By: Brian http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11812 Brian Sat, 19 Dec 2009 05:43:33 +0000 http://viralpatel.net/blogs/?p=606#comment-11812 Remember that a Filter is an interface component, and not a Servlet, so in order for it to render output to the browser, you will want to map it to a Servlet. The reason you will get a requested resource is not available 404, is because there is either no welcome-file-list setup, or you don't have a servlet mapped to the filter. Viral, this is a great example, but I'm pretty sure you did not post your web.xml in its entirety. Remember that a Filter is an interface component, and not a Servlet, so in order for it to render output to the browser, you will want to map it to a Servlet. The reason you will get a requested resource is not available 404, is because there is either no welcome-file-list setup, or you don’t have a servlet mapped to the filter. Viral, this is a great example, but I’m pretty sure you did not post your web.xml in its entirety.

]]> By: Viral Patel http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11744 Viral Patel Thu, 03 Dec 2009 11:07:50 +0000 http://viralpatel.net/blogs/?p=606#comment-11744 @Shyamshara - Thanks for the comment @Shyamshara – Thanks for the comment

]]> By: shyamshara prajapati http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11738 shyamshara prajapati Thu, 03 Dec 2009 08:36:08 +0000 http://viralpatel.net/blogs/?p=606#comment-11738 Thanks Viral, I know you are a Pro. Thanks Viral, I know you are a Pro.

]]> By: Sandeep http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html/comment-page-1#comment-11714 Sandeep Sat, 28 Nov 2009 22:06:50 +0000 http://viralpatel.net/blogs/?p=606#comment-11714 Very Useful Example............................... Very Useful Example………………………….

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