jpa-example | JPA demo | Object-Relational Mapping library
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kandi X-RAY | jpa-example Summary
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jpa-example Examples and Code Snippets
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QUESTION
I am following this tutorial to setup spring boot project with docker-compose. Here is what I did:
My application.properties:
...ANSWER
Answered 2019-Jul-02 at 14:16You should be aware of this very important footnote in the reference documentation of Docker Compose:
depends_on
does not wait fordb
andredis
to be “ready” before startingweb
- only until they have been started. If you need to wait for a service to be ready, see Controlling startup order for more on this problem and strategies for solving it.
In your case, your Spring boot container starts right after your MySQL container is being started. There's no guarantee though that MySQL will be able to take connections when Spring boot is setting up its connection pool.
This means that your Spring boot connection will fail to startup, because MySQL isn't ready yet. This results in your application container to be killed.
The solution to this problem is mentioned within the documentation I quoted. Namely, you have to use some kind of polling mechanism to see if you can connect to your database or not.
If you don't want to use tools like wait-for-it
or wait-for
, you could write a simple Shell script that does something like this:
QUESTION
I've tried to add the users and authentication with OAuth. I followed by tutorial: Video Here is his source code: https://github.com/arocketman/Spring-oauth2-jpa-example
I've done exactly like him but my Intellij showed me some issuses.
I had to change my pom.xml from
...ANSWER
Answered 2019-Jun-27 at 08:43i think you need to add lombok plugin in your IDE. to add plugin
- Go to File > Settings > Plugins
- Click on Browse repositories...
- Search for Lombok Plugin
- Click on Install plugin
- Restart IntelliJ IDEA
QUESTION
I'm using Hibernate in my Java SE program, so no application server.
I'm using my persistence manager:
...ANSWER
Answered 2019-May-04 at 16:43You seems to run in the same issue that this post https://stackoverflow.com/a/29987290/10691359. He solved his problem with a
-Dexec.cleanupDaemonThreads=false
Your problem has nothing to do with Hibernate.
Another solution here https://stackoverflow.com/a/45470078/10691359 is to use System.exit(0)
at the end of your main.
QUESTION
I am wanting to have the equivalent of this karaf command:
...ANSWER
Answered 2019-Mar-25 at 15:38If I got what you are trying to do, this should do the trick:
QUESTION
I have set up a Java web application that uses JPA. My container is WildFly 14. I'm using Maven.
If I deploy my WAR without manifest file containing dependency for org.hibernate
, the container displays ClassNotFoundException for Hibernate-related classes.
My question, is this the normal behavior of WildFly deployment? I'm aiming for portable war file, so what would happen if I bring the same war to another Java EE container whose JPA implementation isn't hibernate?
persistence.xml
ANSWER
Answered 2018-Nov-01 at 05:37Like I said, you should just be using the Java EE API dependency in your pom. Wildfly seems to come with a built in ExampleDS but I don't think that's portable, but you can update the persistence.xml to suit your needs. This gets me started:
QUESTION
I am new to spring MVC and I have one problem. I am creating object of ModelAndView and returing it from the controller method. I debugged it and nothing wrong is in this method, But response is Not Found
error. (I have tried to return String
-> "nameOfjspFile
" and same happens).
this is my project structure:
This is SimpleWebConfiguration
Class:
ANSWER
Answered 2018-Oct-30 at 08:53In your project I changed few things
First one is Change your package name com.GtuMVC
to com.test
Second, change @ComponentScan(basePackages = "com.GtuMVC")
to @ComponentScan(basePackages = "com.test")
Third, in your controller remove @RequestMapping("/ui")
and ada a method in controller
QUESTION
I have a very simple JPA project. This is my directory layout..
...ANSWER
Answered 2017-May-24 at 19:47Adding this to pom.xml worked:
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Install jpa-example
You can use jpa-example like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the jpa-example component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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