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Questions tagged [spring-boot]

Spring Boot is a framework intends to easily create Spring-powered, production-grade applications and services with the absolute minimum fuss. It takes an opinionated view of the Spring platform designed to work for new and experienced users of Spring.

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DomainClassConverter not working in Spring Boot

I have a very simple Spring Boot MVC project in which I try to use the DomainClassConverter to load the Entity directly. But it seems that the DomainClassConverter is not found. I have the following ...
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Docker with “--network host” does not allow to access to port of application

I have Spring Boot app inside docker and I am running my app like this: docker run --rm --network host --name myapp1 myapp But when i am trying to access it from host machine it fails: my_machine:~ ...
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Using request scope for rest Api using spring boot

I am working on an application that has complex business logic and has many list and maps used. The application is expected to be accessed by many users. I see some exceptions including concurrent ...
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Spring Boot Starter : Retry Transaction Question

I'm using the mybatis-spring-boot-starter (2.0.1) and I'm having an issue where sometimes I get a deadlock writing to mysql: com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Deadlock ...
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Name alias in mapping query parameters to object in Spring

I have a class class Request { private String ftr; // more properties } And a method in controller class @GetMapping public String list(@Valid Request request) { //... } When I send ...
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Spring boot application with kafka stream

Do anyone has a hello world example of reading message as stream using kafka stream and spring boot. My kafka cluster is SASL_ SSL secured. So how do I connect my spring boot kafka stream application ...
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Crudrepository tuple from multiple entities

I have two entities, say Transaction and Customer and I want to implement a query which will join these two tables and return result as a list of tuples, like: @Query("select new ...
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Case insesitive query with Springboot CRUD Repository

Values in Room_Entity table is hardcoded and Room_Status values are in uppercase . I want my search to be case insensitive. Here is my query. I am using upper but getting error @Query(value = "...
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Array of GeoJson object serialization error. JsonGenerationException Can not start an object, expecting field name

My problem consist on list serialization error. List contains GeoJson objects where error is Caused by: com.fasterxml.jackson.core.JsonGenerationException: Can not start an object, expecting field ...
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how can I add multiple CORS configurations when I want to use my API for 2 different Apps?

My app is meant to be used by normal users and administrators. Because of that, I'm using want to use CORS for the same API with different configurations. Hopefully, the code can help me to explain my ...
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Basic BPMN question: Activiti with Spring boot

So Yesterday I started learning Activiti with Spring Boot. There are many tutorials on the internet in which Create a function that saves users to DB. Create a BPMN file of the task. Create a ...
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Java - wrapping List<Object> using ModelMapper service

I'm looking solution to map List<Order> orders = ... into @Data public class AbcDTO { List<Order> orders; } ps. I know that I can use somethink like: AbcDTO abc = new AbcDTO(); abc....
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spring security reactive - how to debug “invalid credentials” error?

I want to authenticate users with an external OAuth provider in my reactive spring boot application. Following the official tutorial, I successfully implemented the flow with the pre-configured ...
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Enum Converting Name Response

Hello I have Enum below; public enum TaskStatusEnum { READY(1, "Ready"); ON_GOING(2, "On going"); private final long id; private final long ...
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Jackson jar conflict with JBoss 7.2 module spring boot war deployment

I have compiled a spring boot war and trying to deploy it to JBoss application server. There seems to be some conflict with jackson jars present in modules of my jboss with spring boot dependencies. ...

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