I audit changes to a com.example.TaskSupplier entity with Javers by annotating the corresponding Spring Data repository The primary key of this entity is a UUID, so I can retrieve an instance with However, the entry in Javers’ jv_global_id table for this instance wraps the ID in quotes, so in order to r…
Tag: spring-boot
Spring boot 2.3.3.RELEASE project fails build with exception “org.gradle.api.plugins.UnknownPluginException” in gradle version 5.6.3
my gradle version is 5.6.3. while I run a spring boot project of 2.3.3.RELEASE with ‘gradle clean build’ it shows me following error: Updating my question: my build.gradle : and my settings.gradle contains just the root project name Answer Spring boot 2.3.3.RELEASE definitely exists on gradle cent…
Retrive value from yaml file to field in external library
I have a Spring Boot application I have a external library (written by me, also using Spring parent) as dependency In application.yml (in application, not in library) I have property example In library, I have a class with code like this: The value for this field is null, but when I’m calling for Enviro…
how to configure FlatFileItemWriter to output the file to a ByteArrayRecource?
I have a situation in which the deployment server doesn’t allow the application to output files to its file system … so what i’m trying to do is to configure the FlatFileItemWriter to output the result file to a static Resource property (multi Threading is not an issue here ) . the current c…
Get access token using Spring Security with a specific use-case
Is this use-case supported for Spring Security 5, or something else, where we don’t have to reinvent the wheel? Thoughts on how to (re)implement this better? Details are as follows. 3rd party vendor supplied endpoints. We pull info from upstream source then forward to the downstream vendor. Only 2 APIs …
Retrieving limited columns using jpa specifications
I am using spring boot JPA specifications for executing complex queries. However, the table I am querying contains more than 20 columns and I need to pull just 3. I tried cq.multiselect(…) but it didn’t work and returned me the entity with all the columns. On investigation, I got to know that it&#…
how to resolve error executing ddl commands in spring boot
Hi I am new to spring Boot and i created new project(Demo) using spring initilizr Project structure is Project : Maven Project Language : Java Spring Boot : 2.4.2 application.propertites file is like I have Created some classes and controllers : Entity Repository : Service : Controller : But when i run the pr…
Spring Boot application.properties custom variable in a non-controller class
How come application.properties will work in a RestController, but not in a service class? Works Perfect! Returns “Null” Answer The inviteservice class is not configured for Spring IoC (Inversion of Control) as a bean, so Spring will not handle the inviteservice class lifecycle. In this case, @Aut…
Spring autowiring dependency with constructor arguments
I have created a service class, TestService whose constructor takes an array of Strings and has a little logic to return a list of Strings with length greater than 5. How do I get about injecting this into my Controller class with the array of Strings argument? Answer I think it is impossible. Instead inject …
Image and PDF files getting corrupted while uploading on AWS S3
I am trying to upload images and PDF on AWS S3 using my Spring Boot app. They are getting uploaded in corrupt format without any error. Text files are uploaded successfully. Below is the dependencies we have used. Answer My code works fine. The issue was in the AWS API Gateway. We need to add ‘*/*’…