Friday, May 15, 2015

Spring Boot Internationalization with Default Locale for Message Strings

How to add Spring Boot Internationalization with Default Locale for Storing Message Strings such as Validation Messages in a file 

 This article will show you how to use a properties file to define static text in your application such as for validation message.

All the code is appended at the bottom of the article. 

Add Default locale and Message Source beans to your Application class 

 Add these classes to set your default locale and configure the location of your message properties file

Add beans to your Spring Boot Application class
Add locale and MessageSource beans to your Application Class

Add a Service and Interface to retrieve message text 

 This service will pull the default locale from the session and then get the message text from your properties file using the messageSource.

Create Service to get messages by locale
Add a service to get the msgs in your props file

In your controller, use the Message service to get the message text 

 You will inject the message service in the controller and then pass in the id to get the value from the props file

Inject svc and get message from i18n props file
Inject service into your controller and get the message

Create the file in the locale folder 

 In resources, create the locale folder and then create a file called

Create localized message props file
Create message properties file

Review the code here

You can view all the code here: Link to Github Gist here

Thursday, May 7, 2015

Change Port on a Spring Boot Application when using intelliJ

Change Port on a Spring Boot Application when using intelliJ 

Two ways to change the port that the embedded Tomcat is using in a Spring Boot Application.

The first way is to modify the application properties in the resources folder:

Update application properties to change port
Update application props in Spring Boot Application

There are a couple issues with this approach.  You might only want this port change in your local environment and if you check it in by accident you might break things.

Alternatively, you can use a command line parameter.

Go to Run -> Edit Configurations -> VM options

Then enter in the following argument:


Then click apply and OK and attempt to run the application again.

Update port on Spring Boot application using VM option
Update port using VM option