Questions tagged [spring]
The Spring Framework is an open-source framework for application development on the Java platform. At its core is rich support for component-based architectures, and it currently has over twenty highly integrated modules. For Spring Boot related questions, also include the tag [spring-boot].
spring
211,859
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When i am. trying to run spring intializr using ./mvnw spring-boot:run. it showing the error
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:3.3.2:run (default-cli) on project initializr: Unable to find a suitable main class, please add a 'mainClass' property -...
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5
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Session using springboot
Category page show the msg whenever category is added . i want that whenever user refresh the page it will removed from the webpage(msg).
@Service
public class CommonServiceImpl implements ...
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19
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Does my design violate the Liskov Substitution Principle?
I'm working on a Spring Boot application with the following structure for sending messages
public interface MessageService {
void send(String message);
}
@Component("SendEmailService")
...
- 87
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1
answer
16
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Kafka offset incrementing after 10 attempts in Spring boot
We have spring boot application to consume the messages from Kafka and put into DB.
We dont want any error handling to be performed in the application if any exception occurs (like DB down etc) ...
- 53
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1
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18
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File upload into ClassPathResource - IOException
i want to upload images added by admin(add category) into folder in project directory but i try to do so with the help of controller but it throws Unhandled exception type IOException
@PostMapping(&...
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9
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Why is a Thread-Scoped Bean Injected Instead of a Default-Scoped Bean in Spring Boot?
I recently made a change to my Spring Boot project. I initially had a bean without a specific scope. Due to an implementation that uses threads and the occurrence of concurrency issues, I needed to ...
- 1
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1
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13
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Swagger UI doos not show Authenticate button in Spring Boot
I am using Swagger UI to test apis for Spring Boot on mac. However, the authenticate button does not show up so that I can put JWT token for authentication. How can I solve this issue?
I searched the ...
-1
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19
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Why SftpSession from spring-integration-sftp (Spring Boot 3.3.2 ) not able to find folder with relative path over SFTP?
I am migrating a spring boot application from V2.7.18 to V3.3.2 which connects to remote server to perform SFTP operations. The application is able to make SFTP connection post migration, but it is ...
- 33
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1
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40
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Invalid bean definition is defined in class path resource as there is already a Generic bean
I am trying to convert a spring application to springboot application. The application runs fine when I run it using the intellij GUI, but if i use the terminal and try to run it by java -cp command ...
- 11
-1
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63
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Spring for a library [closed]
I have written a library to provide a Java API for a Rest service with all the fun stuff like RestTemplate, RestTemplateRequestCustomizer, ResponseErrorHandler, etc. I now want to distribute the ...
- 307
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18
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For virtual threads, how to control the number of platform threads via Spring
I need to use virtual threads through SimpleAsyncTaskExecutor and I have the following three questions:
How do I control the number of platform threads used to dispatch the virtual threads?
By ...
- 1
-1
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0
answers
11
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How to Implement Configurable Grading Grids in a PFE Dashboard
I'm working on a project for managing grades and evaluation grids for students in PFE internships. The goal is to allow the director of stage services to modify the evaluation grids and grading ...
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15
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Spring Shell not running interactive mode windows 11 - Unable to create a system terminal, creating a dumb terminal
I'have created simple SpringShell app (java 21 and maven) using spring initializr and created class HelloCommand.java.
While running app in IntelliJ IDEA I'm occurring a warning Unable to create a ...
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16
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RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "//"
In my attempt to make my web application secure, I was testing the URL "myapp/resources//etc/passwd" to see if it correctly handles any malicious URL. Although the request itself returns a ...
- 135
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2
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23
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Is it possible to expose multiple GraphQL endpoints in one spring boot application?
Does Spring support exposing multiple GraphQL endpoints and having separate schemas for those endpoints?
I found nothing about it in the documentation. I know that Spring supports multiple schemas, ...
- 11
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19
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How to avoid session creation in cookies when going to STATELESS in spring 6
I am using spring security with spring 6(XML based) and tomcat.
Previously i was using session but now i am moving to JWT. I already set it create-session="stateless" in spring-security.xml ...
-1
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2
answers
32
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any scenario's to use @Transactional annotation at Repository delete method?
I am reveiewing the code for one of the senior member for the first peer review so he added @Transactional annotation at custom repository with delete method. The custom Repository delete method is ...
- 1,653
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25
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do it acquire hikaricp connection when using repository interface?
spring data redis version: 2.7.18
Defined Repository
public interface MemberCacheRepository extends CrudRepository<MemberPrincipal, Long> {}
refrence link: https://docs.spring.io/spring-data/...
- 62
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21
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How to apply ant_path_matcher on Spring Cloud Gateway MVC?
I'm migrating from zuul gateway to Spring Cloud Gateway MVC.
But I knew that no more patterns like "/foo/**/bar/**" is allowed since ant_path_mathcer is deprecated.
And I want to keep ...
- 3
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votes
2
answers
30
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Generate access tokens after successful social login with Google
I am implementing a spring authorization server with Spring Security 6. Simple authentication of users registered in a local database is already implemented and generating access tokens perfectly.
I ...
1
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1
answer
26
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How to dynamically assign TransactionalManager for multiple datasources in Spring boot
Say, I have configured 5 DataSources in my Spring application.
Each of those connections have also created a matching bean of type TransactionalManager.
When I declare a @Service annotated classes ...
- 151
1
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0
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34
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Sprintboot Opentelemetry with spring-boot-starter Error
I am trying to enable opentelemetry leveraging sprint-boot-starter. I added io.opentelemetry.instrumentation:opentelemetry-spring-boot-starter to the build.gradle file. However, the application throws ...
- 105
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13
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How to implement Spring boot 3 webflux switchuserwebfilter
I am trying to implement switchuserwebfilter to impersonate different user in a stateless webflux app using jwt bearer token
- 120
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15
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SpringBoot 3.2.4: sleuth.reactor.instrumentation-type: decorate-queues replacement in micrometer
How to migrate/replace the below sleuth property in spring boot 3 with micrometer tracing?
sleuth:
reactor:
instrumentation-type: decorate-queues
The application is a webflux project
On doing ...
- 41
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1
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36
views
How to force XmlMapper to retain the root element?
I have the following minimal code:
final var xmlString = "<parent><child>data</child></parent>";
final var xmlMapper = XmlMapper.xmlBuilder()
.enable(...
- 43.6k
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1
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22
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Spring Security OAuth2 blocks the Redirect URL from Keycloak [closed]
I am integrating OAuth2 authentication using Spring Security and Keycloak in my Spring Boot application. The setup involves a magic link solution where users click a magic link and are redirected back ...
- 1
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1
answer
27
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Springdoc OpenApi add Classpath Yaml
I have a OpenApi Spec defined in its own library.
This library is used as gradle dependency in my project.
I am using Springdoc v.2.5.0.
My project is a Spring Cloud Gateway.
Currently I am trying to ...
- 143
-3
votes
1
answer
49
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findAll() method in MongoRepository returns an empty list [closed]
MovieService.java
package com.example.movies;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public ...
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1
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43
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unable to implement streaming while generating response of ollama
I am using langchain4j, PGVector and Ollama (llama3) for my RAG application
there is an API endpoint "/generate" where the user gives a string and it returns the response generated by the ...
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0
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45
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Spring Redis serialization issue with Spring Security's DefaultSavedRequest class
I am using spring-session-data-redis, spring-boot-starter-data-redis for session persistence in Redis. The Spring Boot version for the application is 3.2.6. I am also using Spring Boot security with ...
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13
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Spring Batch how to create fixed size file when reading multiple flat files?
I'd like to further extend Reading data form multiple csv file and writing it into one csv file using Spring Batch, in my case I've to read multiple files (with the same filename) from different sub-...
- 11.5k
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0
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34
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Cannot receive request from Java spring framework [closed]
I'm using CentOS Web Panel on CentOS 7 and currently I have this problem.
My server is intended to receive a push data in XML format from 3rd party using Java Spring, and it return with 403 forbidden ...
-1
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1
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32
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How to pass multiple images as @RequestPart in Spring feign client?
I am trying to pass multiple files (images) using feign client. However, when I am using @RequestPart annotation for list or array of MultipartFile, I am getting an error. For a single MultipartFile ...
- 128
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1
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34
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I can't auto login user after registration in spring boot
when i registrate user my project throws stackOverFlowError, but user is saved to database.I also have registration form. Here is my registration controller:
@PostMapping("/register-user")
...
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0
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26
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Connecting Jconsole to java app on GCP via SSL ( connect to JMX through JNDI )
I'm trying to make a connection to my java app, using Jconsole. I want to secure that by SSL. At the end I want to move this app to GKE and make the same connection.
What I have:
Simple springboot app,...
- 1
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1
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17
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"java.lang.IllegalStateException: org.springframework.cloud.config.client.ConfigServerInstanceProvider$Function has not been registered"
Getting the exception:
java.lang.IllegalStateException: org.springframework.cloud.config.client.ConfigServerInstanceProvider$Function has not been registered
In Spring Cloud Config Server.
Configured ...
1
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0
answers
57
views
Spring Boot RestClient as a singleton or create new instances per request
Looking through the documentation here, the expected pattern to use for RestClient is to autowire the RestClient.Builder and then build the RestClient in the constructor method of a service. While ...
-1
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1
answer
47
views
Return whole child DTO inside parentDto [closed]
I have class student and school DTO.
Class Student{
private String name;
private School school;
}
Class School{
private String schoolName;
private String address;
}
while returning ...
- 45
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25
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How to Convert a Complex SQL Query to Hibernate Criteria API
I'm learning about Hibernate's Criteria API and would like to know how to convert this particular SQL query to Criteria API. Here is the SQL query I’m working with:
select s1.score as score,count(s1....
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0
answers
15
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Any new changes in Angular UI code not reflecting in running war file, generated from Angular and Java Spring code and deployed in wildfly server
I am working on support for one legacy project with below environment:
Client: Angular UI, version: 4
Backend developed in: Spring,
Server: Wildfly
Java version: 8
Below is screenshot of my project ...
-1
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1
answer
37
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How to set the principal name of a Spring Security OAuth2AuthorizedClient using access token response?
I am currently playing around with Spring Security 6's OAuth2 Client in Spring Boot 3.
I am using an authorization_code grant which is exchanged for an access token using the following security config:...
1
vote
1
answer
52
views
Memory / garbage collector issues with Java Spring service
I have a memory issue with a Java service (21) using the Spring framework (3.2.1).
The service is quite simple. It exposes a REST endpoint.
When this endpoint is called, the service makes an HTTP ...
- 13
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1
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60
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4Read file from executable spring boot jar on Java 17
I have a jar with the following structure on my jar:
I am trying to read the file under custom/file.txt but it's throwing me an error:
java.io.FileNotFoundException: URL cannot be resolved to ...
- 807
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21
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Caused by: org.springframework.jdbc.BadSqlGrammarException: Executing query; bad SQL grammar [SELECT * FROM employee where age in (:ageList)];
I'm using Spring Batch XML code in my project where I'm reading from MySQL DB using IN clause and writing it into CSV/CustomItemWriter etc.
Getting below error, it appears that Spring Batch is not ...
- 11.5k
-1
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1
answer
67
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java.lang.ClassNotFoundException: Could not load requested class : charset
I am attempting to add spring data jpa to an existing spring boot 2.7.3 web app. We're using hibernate 5.6.9. I've added spring data jpa as a maven dependency via the spring-boot-starter-data-jpa ...
- 6,845
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1
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34
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Spring @Autowired in mapped object from Jackson ObjectMapper
Is there a way to get @Autowired Objects initialized properly inside a newly created Object that came from objectMapper.readValue()?
BaseEventInfo eventInfo = objectMapper.readValue(eventJson, ...
- 379
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0
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21
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Spring boot serialize different fields according to users role [duplicate]
I've a spring boot project that is about 90% of development complete and I just faced a new requirement, for one specific endpoint the response must only include certain entity fields if authenticated ...
- 3,364
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34
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Getting 404 on several resources or endpoints when using antMatchers instead of antMatcher [closed]
I'm using two configuration classes with different goals.
SecurityConfig
This class manage permissions for all endpoints of my web application:
package com.IOTProjectUI.security;
import java.util....
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31
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How to pass list in SQL query - Spring Batch Caused by: java.sql.SQLException: Parameter index out of range (2 > number of parameters, which is
Before posting the question - I went through below URLS, but it was clear enough to me
Using SpringBatch JdbcCursorItemReader with List as NamedParameters
How to set list of parameters on prepared ...
- 11.5k
1
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0
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32
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SpringBootTest with Togglz
I just recently added togglz to the spring-boot 3.1.9 application, which contains also much stuff like spring-security, spring-data, etc.
Maven dependency:
<dependency>
<groupId>org....
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