I am really new to WebLogic deployments. I have the below situation:
I have a war file which is already deployed on WebLogic 8.1, I want to pick the same war and deploy it on the same server without bringing the original site down. This would definitely give me a exception saying the context path already exists. I have no way of recreating the war file, hence I will somehow have to modify the war file to change the context root. Is this possible?
And if it is possible could you also confirm that both using the same data-source(JNDI) would not cause any issues to the existing site.
Thanks,
Sahana
Yes you can deploy the same war file multiple times and yes you can change the context root. You will want to do something like the following if you cannot rebuild the war file yourself.
Unzip the war file (jar xvf myfile.war)
This isn't entirely necessary but it will help you understand the structure of the war file. Zip tools can modify a file in place. Try 7zip or use the Windows zip utility via right-click Open
Edit the weblogic.xml file with the new root <context-root>/new-root</context-root>
Rezip the war file (jar cvf mywar.war folder_it_is_in)
Here are other examples that may help as well:
How to deploy EAR application twice on WebLogic server?
How to deploy the same web application twice on WebLogic 11g?
How can I use Weblogic (12 C) without the application context in the URL?
Related
There is a project in github:
https://github.com/chexagon/redis-session-manager
I downloaded and created jar file via maven. But I must use war file for deploying it to Tomcat and use it in our own application. Because of this project doesn't have web.xml file or any entry point (at least I couldn't find it) I couldn't create war file properly. Can anyone help me to solve this issue.
Thanks in advance
The software you downloaded is not a web application. It is a component that can be used as part of a web application.
Correction - Actually it is an add-on component / plugin for Tomcat itself ... that allows the session state of web applications to be persisted in Redis.
Turning it into a WAR file won't help.
Even putting it into your application's WAR file won't help.
The JAR file needs to be copied to the tomcat/lib directory. Then you add a a <Manager> element to the conf/server.xml file. The README.md file describes the attributes of <Manager>.
I have a java application(not a EJB, not a MDB, it has a class implements ApplicationLifecycleListener). I build this java application into a jar file then create an EAR file include this jar, deploy the EAR file on a weblogic server, it works perfectly fine.
Now I want to use weblogic deployment plan to update some of the values in a configuration file which located inside the jar file. I generated the deployment plan, but it does not recognize my configuration XML file. I tried manually add it to the deployment plan, and use the deployment plan to redeploy this application. But nothing is updated.
I have read some examples of updating ejbs, but did not find anything about update a JAR's configuration inside an EAR, can anyone please give me example or send leave a link on how to properly use weblogic deployment plan to update a configuration file inside a JAR which is packed within an EAR file. Thanks.
You probably have to place the XML file in a jar file with same name under the same path as the original and use this jar in AppFileOverrides.
I am working on weblogic 12c and i deploy .ear file which inside contains .jars and project stuff.
After ANT Build all java classes goes as jar inside 'project/bin' folder. This bin folder will be part of .ear file.
I then deploy .ear on weblogic. But apart from doing this, it is also
forcing me to copy 'project/bin' folder stuff into 'Weblogic/domain/lib' folder and restart the weblogic server. If i dont do this, i am getting ClassNotFoundException for all java classes.
Why should i copy 'project/bin' folder into 'Weblogic/domain/lib' ?
Is this a ideal way of doing deployment ?
If not, How to avoid doing this every time ?
Please help.
I have a Java Web project (Struts + Spring) working perfectly in my localhost. I have to deploy it on my website, but the Tomcat Manager interface given by the webhost says it cannot upload a WAR file due to safety reasons. When contacting the tech support I was told it is not possible to upload a WAR and that I should try deploying my project by uploading the files directly (I have FTP access).
My problem is that no one at the tech support gave specific instructions on where I should put my project files (I don't know if it should be on de same folder the WAR would be sent to) neither how to start/stop it (Will the Tomcat Manager recognize it once I upload the files?).
You can always try to upload a war file to webapps folder of tomcat.
if tomcat is running with autoDeploy set to true it will auto deploy your application.
i think that the same will happen if you upload the exploded war to the webapps, the context will be the name of the directory you put your files in.
Just place your apllication's root folder to the Tomcat's directory webapps and configure tomcat to auto deploy. Restart the server and your application will be deployed.
You transfer the files to the same place as the war file would go - but just as an expanded war.
Whether or not tomcat will recognise that the files have changed depends on the configuration of the tomcat server. I'd just give it a go - transfer the files and see what happens. If it doesn't pick up the changes then you'll need to find out from tech support how to restart tomcat.
In Tomcat 5, I would build a WAR file and place it on my test server. On this server there was a my-app.xml file in the CATALINA_HOME/conf/[EngineName]/[HostName] directory that pointed to my test database. Once I finished testing, I would send the WAR file to my clients IT department and they would put the file in the CATALINA_HOME/webapps directory. On their instance of Tomcat, they had a different my-app.xml file that pointed to the production database.
Recently we upgraded to Tomcat 6, when either of us copy the WAR file into the webapps directory, it deletes the my-app.xml file. After it is deleted, if I copy a backup of my-app.xml file into the CATALINA_HOME/conf/[EngineName]/[HostName] directory, Tomcat ignores it, even if I reload the webapp from Tomcat Manager.
I tried adding a context.xml file to the META-INF directory in the WAR file. When Tomcat was expanding the WAR file, it would overwrite the my-app.xml file with the context.xml file. If I then copied the backup of my-app.xml file back into the CATALINA_HOME/conf/[EngineName]/[HostName] directory, Tomcat deletes the WAR file and the expanded directory.
I can include the appropriate my-app.xml file inside the WAR file, but this means building two WAR files, one with the test my-app.xml and one with the production my-app.xml. I also can get it to work if I copy the WAR files or the my-app.xml backup files in a specific order into the correct directories. I am not fond of either of these solution for multiple reasons.
What am I doing wrong? Why does this not work in the new version? Do I need to change an option? Do I need to change my process? (NOTE: The client's IT department does not want to have to stop and start Tomcat to redeploy a new WAR file.)
Thanks!
It sounds like Tomcat's auto-deploy is interfering with your manual deployment. Try either deploying your WAR file to another directory (i.e. not the webapps dir) or turning of autoDeploy in your server.xml. There's some more notes here: http://tomcat.apache.org/tomcat-6.0-doc/config/host.html#Automatic%20Application%20Deployment.