I have a word document which was generated with docx4j, when i unzip the docx file, the contents of folder is the contents of ./word/document.xml is as below the relationship xml has below relationship when we unzip chunk.docx it has below file contents and the ./word/document.xml has below contents relations…
Tag: spring
How to elegantly convert from MSSQL Datetime2 to java.time.Instant
I have a simple spring boot REST API application, using plain jdbc to fetch data from a MSSQL DB. I am trying to figure out how best to retrieve a DATETIME2 column from the DB (which stores no timezone info), and serialize it as a UTC timestamp (and treat it as such in general in code). My DB server timezone
Multiple nested exceptions while trying to consume JSON documents from API’s
I’ve created a simple Spring Boot app, in which I am trying to consume an API through JSON information. Below you can see the simple code I created using RestTemplate on the Service Class. The problem I am facing is that when I am using the API url below, I am getting the following nested exception. In …
Avoid duplication on manyToMany relationships with 3 tables
I’m trying to implement a User system with roles and privileges. So I have 5 tables: users roles privileges users_roles roles_privileges My class user owns the relationship users_roles and the class roles owns the relationship roles_privileges. To describe my problem lets say I have the following in my …
Spring, Jpa : One To Many Error when the list contains values
I want to return a Profile Object in JSON containing a list of login details associated with a social network. Everything works correctly when the “reseaux_sociaux” table is empty. For my status table I get my statuses in JSON format in my Profile object. However, when “reseaux_sociaux”…
Spring upgrade issue – ClassNotFoundException
I have upgraded my spring boot from 2.2.6.RELEASE to 2.7.0. After the upgrade , i am getting ClassNotFoundException when i start the application. I tried with 2.6.6 but result is same. My pom file looks like Exception : Can anyone please help on this? Answer Finally i could solve the issue. In the parent pom …
Is there any way to use something like List.class?
I’m using SpringBoot with OpenAPI and SwaggerUI to implement a rest api. I want to annotate a @GetMapping method with @ApiResponses to provide the schema of the response, but I’m struggling with the parameter implementation of @Schema. The return type of my method is List<ScanDTO>, so I trie…
@Value not getting the value from application.properties
im trying to get a value from the application.properties in a Spring boot app. The class is defined with the tag @Component, I already tried @Service too, and with @PropertySource(“classpath:application.properties”) and without the @PropertySource but in any case they get the value. The interface …
Error while querying tables using hibernate
I am trying to query a table called student in MySQL. This is the structure: Here is the java code which I use to query: This is the error message: Here is the image of the referenced libraries: Insertion into table is working correctly. Only querying isn’t. What is the error here? Please comment if ext…
Failed to read candidate component class when testing Spring Data Repository – IndexOutOfBoundsException
I’m trying to test a Spring Data JPA repository but when I run the test I always get the following error The class it talks about is a pretty simple entity If I comment the @Table annotation I get the same error on the next class. I also had the issue on a classe with @Cacheable and it gave me