I installed a java web service on a machine that accesses an Oracle DB via JDBC on the same network. The service was functioning fine for several months until this morning when I installed another applicaiton that access the database using ODP.NET. I'm trying to figure out what went wronge to cause the ORA-01017 exceptions that I'm getting. This generally means that the login credentials are invalid, but the login credentials haven't changed. I also verified it the service's log4j output that it is indeed still trying to connect to the DB correctly.
I realize I don't have much to go off of here, but I'm trying to figure out what other dependencies that. The web service came packaged with ojdbc14.jar, so that tells me that it targets java1.4, but presumably would work fine in later java versions. Not too sure about it working with later java versions, however, it was working fine until today.
Does OJDBC rely on tnsnames.ora. If it depends on how the service uses OJDBC, then I'm not sure which it is doing. I suppose it's possible I deleted the tnsnames.ora, but that is a bit of a longshot. I also tried manging Apache Tomcat (running on Win Server 2003 x64) to target different java jvm versions, but to no avail. It was initially targeting the default jvm.
Are there other dependencies that I've missed here, or any diagnostic measures I could try? THe same web service is running on another machine on the same network which I am pretty sure is configured exactly the same. Again, it was working on both machines until today, and is now just working on the one.
Tomcat targets JDK 7.
Looks like replacing ojdbc14.jar with ojdbc6_g.jar did the trick. No idea why it was the case only for 1 of the 2 machines. ojdbc6 targets JDK 6, but ojdbc14 did, and should have continued to work. If anyone has any additional insight here, let me know.
Related
I have been trying to understand and clone the spring mvc login and registration process. As far as I know I am following the same code and process. Only thing I have changed is database details.0 Which works fine I am able to insert the data into the MySQL (8.0.27) database using test file. I am getting the same error even when I am trying his code I am getting error.
here is my code: https://drive.google.com/drive/folders/1JNkZp_O1Lh0y_1NdZ-A85KI1gfgy0_Em?usp=sharing
here is GitHub code: https://github.com/javabyranjith/spring-framework-mvc/tree/master/springmvc-userlogin
Errors I am getting:
action keyword in form was giving error "element loginProcess is not found"-> so I changed it to the form action then it worked
The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
my questions are
can a different version of Apache Tomcat(10.0.13) server can cause the issue?
since I am using new Eclipse so I have updated the new libraries can this cause the issues?
Please suggest the changes so that I can run this project. Suggest the changes here or directly change it in the google drive folder.
Tomcat 10 does not work with Spring 5. Downgrade to Tomcat 9.
10th has jakarta packages renamed from javax, which spring 5 does not support.
Friendly advice, if you are using code from git, they left versions of stuff like java and tomcat for a reason, and the newest versions like Tomcat 10 and JDK17 went through a lot of changes, so always try with suggested versions and try to migrate them to higher ones. Except for Tomcat 10, you will have to wait for Spring 6 for that.
As for the new eclipse, it does not make any difference, the maven project is still the maven project, src, and pom.xml, the structure remained the same.
First try with suggested versions then you can ramp them up once you are sure that it is working.
I had to develop an app with Flutter for my dissertation. The app was an update and an extension of an old app devepoled by another student of my university, 2 years ago.
He developed also the backend that was written in Java using Spring and Maven.
Developing my app, I had to do some changes and additions in his code.
Some days ago I tried to export the backend project as a war file compiling with the JDK 15 (during the developing I used the Intellij's build-in Tomcat to test the new features) and I did the deploy on my Tomcat and I got error 404.
After reading many posts about this error on this site I found the solution by simply installing and compiling with java 12.
At that point, excited by the idea of finally being able to use my application and start the tests necessary for my thesis, I deployed the same war file to the Tomcat running on university server and I got error 404 again:
"HTTP Status 404 - /backend-api/
type Status report
message /backend-api/
description The requested resource is not available.
Apache Tomcat/7.0.52 (Ubuntu)"
I tried to install the same JDK (1:7:0 79) that was used by the developer of the backend during his dissertation, but the problem wasn't solved.
In the second anwser of this thread it seems that they are talking about a similar problem, the point is that I can't modify any setting of the server of my univeristy and, right now, I can not even access to the logs of Tomcat.
I think the problem may be an outdated version of the JDK or Tomcat running on the university server.
But what seems strange to me is that the old version of the backedn is still running on that server and working without problems, and I have not made any changes to the configuration files, but only added a couple of functions.
Do you have any suggestions for me to solve the problem or understand what the cause is?
In a few days I should graduate and without my backend the application is not usable.
On my PC i deployed the war file on Tomcat 7.0.107 with JVM version 1.8.0_271-b09, while the university is running Apache Tomcat / 7.0.52 (Ubuntu) with JVM version 1.7.0_79-b14.
Thanks a lot to anyone who takes their time for trying to help me.
I got in charge to create a website based on Java. Production environment specs include Solaris 11.1, OHS 12.1.3, WebLogic 12.1.3, Java 1.7.0_51 and Oracle Database 11.2.
I want to create a server on some cloud or hosting service as Development environment with the same specs to avoid migration problems to Production. I also think this approach helps to give my team a single server where they can work and have some testers/client to visit the site.
Normally I would use a local Development environment but a lot of people is involved and differences with Production can become a problem at migration.
I checked http://www.polarhome.com/ but I don't know if it will fit all specs needed. I looked at Windows Azure and Google Cloud with no success. AWS maybe? I also checked https://cloud.oracle.com but I don't understand if they already offer what I need.
Do you know any providers to create my Development environment or another approach/suggestion to develop this project??
Thanks!
EDIT.
To clarify, the client's Production environment already exists and is running somewhere. My project will be installed on that environment when development is finished. I personally think that developing on any VM with WebLogic 12.1.X and Oracle Database 11.X should be enough, but I've never done it so I wanted to follow client's advise on having a Development environment similar to Production.
Do you think I can just create a VM on any OS and just install WebLogic 12 with Oracle Database 11?? Any suggestions to avoid migration issues if I take that route?
I think that develop a new website from scratch thinking to use the architecture proposed by you is a nonsense. I think that if you will use cloud services like PaaS you will do something better.
In any case, you can find solaris VMs on Cloudsigma , Entic and Oracle Public Cloud
I am here to get some expert advice on deploying applications to WebLogic Production Server.
Is it a best practice to use Admin Server Console for deploying and redeploying applications in production. Actually I am deploying to a cluster having two managed server instances.
I have encountered this issue while i am redeploying application in the production. When i am deleting existing .ear file and adding updated .ear file will put the updated .ear file into prepared state. I can not make it Active state using Admin Server Console. If i try it will through some exceptions. But after some time it automatically goes in to active state, but i don't know what is happening inside. Sometimes i restart the server to make it active. Could anybody explain me what is the procedure when deploying application and redeploying applications in weblogic
Thanks in advance for any Help...
Generally WLST (WebLogic Scripting Tool) is used to deploy the applications. Administration Console can also be used to deploy/upgrade the applications but if there are many environments that need to be upgraded then WLST (which works like a command line tool) is much better option.
Get an overview of WLST to know how to use it to deploy/undeploy/upgrade applications.
Check out "Understanding WebLogic Server Deployment" and the "Redeploying Applications in a Production Environment". There are different factors that affect redeployment of an application which you might be running into.
http://docs.oracle.com/cd/E23943_01/web.1111/e13702/understanding.htm#i1057116
http://docs.oracle.com/cd/E23943_01/web.1111/e13702/redeploy.htm#g1039635
Additionally, there is a WebLogic Plug-in for Maven in more recent WebLogic releases that you can use for deployments in conjunction with Maven.
I have ColdFusion Builder 2.0.0 installed and I am trying to look at the much vaunted step debugging. However, I cannot seem to get it to work as I don't have my site / JRun install setup in the naive way the examples show.
I am using version 9,0,1,274733 of ColdFusion and my configuration is as follows:-
Installed as multi-server version with Jrun here:- c:\Apps\JRun4
application files are here:- d:\websites\my.website.com
web root is here d:\websites\my.website.com\www
core library of CFCs is here d:\websites\frameworks\core which is mapped in CF as core
I have read this watched this http://help.adobe.com/en_US/ColdFusionBuilder/Using/WS0ef8c004658c1089-31c11ef1121cdfd6aa0-7fff.html and this http://forta.com/blog/index.cfm/2007/5/30/CF8-Debugger-Getting-Started and watched this https://experts.adobeconnect.com/_a204547676/p33029638/?launcher=false&fcsContent=true&pbMode=normal but I get stuck at the point after you have configured RDS and you are setting up the server for your project.
Now I am pretty sure the above is correct, when I move to the next page in the wizard I get the following:-
Now I as I understand it my Server Home should be c:\Apps\JRun4 and my Document root should be d:\websites\my.website.com
This all looks like it is going to be fine until you actually try and debug when I get
followed by
I can confirm that the server is running and RDS is enabled as in the RDS Dataview I can see all my databases.
Any help would be gratefully received as this is very frustrating and the documentation is very lacking.
There is a video tutorial as well that you may want to check and see if that helps. http://blogs.adobe.com/anand/2011/01/learn-how-to-debug-coldfusion-applications-using-coldfusion-builder-2.html
You need to specify the RDS username/password and the "application server name". If you are using the base instance that was installed when you setup the multiserver install of CF that is "cfusion", otherwise its the name of the instance you are using.
The RDS username is most likely "admin" unless you setup custom users for RDS. The password is the RDS password you specified when you installed CF.