Christoph Burmeister

little JMX-Client

März 4, 2012 Keine Kommentare

Goldelse on top of Siegessäule in Berlin, by Christoph Burmeister (own photo)

Goldelse on top of Siegessäule in Berlin, by Christoph Burmeister (own photo)


Right the second part of my first post on JMX-playing. A simple client that connects to a running MBean-Server, looks for a specific MBean, sets attributes and retrieve the values of these attributes.
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Programmierung , ,

playing with MBeans

Februar 28, 2012 Keine Kommentare

Hamburger Rathaus, by Christoph Burmeister (own photo)

Hamburger Rathaus, by Christoph Burmeister (own photo)

Just for a small dive into java.lang.management and javax.management. With little overhead you can create remote-manageable objects. With tools like jconsole or other jmx-clients one can manage those objects. In the following scenario I will create a little bean that implements an mbean-conform interface to be made manageable vie JMX-client. weiter lesen

Programmierung , ,

simple form-validation with jquery

Februar 17, 2012 Keine Kommentare

Jaffo (Tel Aviv, Israel), by Christoph Burmeister (own photo)

Jaffo (Tel Aviv, Israel), by Christoph Burmeister (own photo)


Creating a form is easy… event with some not-so-nice table-tags, some tr’s and some td’s and so on. But what if you have a requirement like a valid email-adress? Sure, serverside-validation with PHP is on option, but I heard of a library called JQuery :-) Just head-out for the 1st class documentation of jquery and soon found what I desired: weiter lesen

Programmierung

Deploy war-file with maven to remote (standalone) tomcat

Februar 5, 2012 Keine Kommentare

Vansu bridge (Riga), by Christoph Burmeister (own photo)

Vansu bridge (Riga), by Christoph Burmeister (own photo)


Let’s assume you write classes, code or JSP-scripts for a java-project which should be deployed into an application server like Tomcat from ASF. Setting up a maven webapp-project in eclipse is meanwhile nothing more then 5 clicks, a bit of fantasy with the artifactId and that’s it… thanks to predefined archetypes. Now the devteam is ready for some real-world-tests of the code and you wanna like to run the war. Sure, you can do it by using embedded jetty, but in this case we wanna have it up and running in a “real” app-server: the Tomcat. weiter lesen

Programmierung , , ,

debug your webapp – the simple way

Januar 30, 2012 Keine Kommentare
Ben Gurion-University Beersheva (Israel), by Christoph Burmeister (own photo)

Ben Gurion-University Beersheva (Israel), by Christoph Burmeister (own photo)

Debugging your webapp is not as hard as it could be without Tomcat ;-) Just take a normal Tomcat-Installation (download, unzip, configure) and put your packaged war-file into the webapps-directory. If it works, fine. If not, search the bug. Of course, you could do the debugging in your eclipse, maybe with an integrated tomcat or app-server-plugin, but sometimes the deployment-process takes a while and if there are to much things unknown, you would likely deploy the war-file to another machine and let the tests begin. Then you can connect remotely and debug while real data is flowing through your application. weiter lesen

Programmierung , , ,
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