Articles about spring | UserComp.com

Understanding Spring Security (Without Spring Boot): Request not Authenticated/Authorized

In this tech support article, we will explore the foundation of Spring Security and get a better understanding of how it works without Spring Boot. We'll go through basic security configuration and set up authenticator routes.

Troubleshooting Java Connect Exception: Connection Refused in Docker Compose Spring Boot Keycloak

In this article, we will discuss the steps to troubleshoot the Java Connect Exception: Connection Refused error that occurs when starting up a Spring Boot service with a Keycloak OAuth client in a Docker Compose file. We will provide a step-by-step guide to help you identify and resolve the issue.

Spring Boot Validator Doesn't Return Custom Error Message: A Comparison of Two Fields

In this tech support article, we compare two fields for entity checks, where the implementation does not see custom messages, instead it returns... SEO optimized. Read more to find out how to handle this issue in Spring Boot.

Automatic Save Many-To-Many Relationships with Spring JPA

Learn how to automatically save Many-To-Many relationships using Spring JPA. This tutorial covers index and user relationship tables and provides a SEO-optimized overview of the process.

Can't Access Static Resources in Spring Boot Application

Having trouble accessing static resources in your Spring Boot application? Learn about potential causes and solutions to resolve this issue.

Number of Elements in Select List Exceeds Maximum Allowed - Hibernate 5.6 Update Issue

This article discusses a common issue faced when updating data using Hibernate 5.6's save() method, where the number of elements in the select list exceeds the maximum allowed number of 4096 elements. A solution is provided using Spring Data JPA and jpaRepo.save() method, which avoids generating many select statements and reducing the impact on the database.

ShardingJDBC Forced Routing Failed: Troubleshooting with Maven Dependency

This article provides a brief overview of the ShardingJDBC forced routing failed issue when using the Maven dependency for sharding-jdbc-spring-boot-starter in version 4.0.0-RC2. Learn how to troubleshoot this problem and find potential solutions.

Spring Data JPA Duplicate Key Violation in Concurrent Postgres DB Transactions

In this tech support article, we discuss an issue that can occur when using Spring Data JPA to add new entities to a Postgres database in concurrent transactions. Specifically, we look at the duplicate key violation that can occur and how to resolve it.

Updating Spring Boot 2.1.7.RELEASE to 2.7.10 with SQL Server and Always Encrypted Columns

Learn how to update a Spring Boot project from 2.1.7.RELEASE to 2.7.10 and use SQL Server with Always Encrypted columns via Java Keystore. Improve your tech support skills with this SE Optimized article.

Making Raspberry Pi 5 a On-Premises Server: Can it Deploy Dockerized Spring Boot Microservices?

This article explores the feasibility of deploying dockerized Spring Boot microservices on a Raspberry Pi 5 as an on-premises server. Learn about the requirements, considerations, and potential challenges.

Setting Mailspring as Default Email Client in Windows 10

Learn how to set Mailspring as the default email client on your Windows 10 system. Follow these simple steps to make Mailspring your go-to application for handling emails.

Boosting Kubernetes Performance for Debian VM: A Spring Boot Microservices Case Study

Learn how to optimize Kubernetes performance on a Debian VM by configuring resources using Helm charts for a Spring Boot microservices application.

Understanding Error Handling with Spring Cloud Gateway FilterFactories

In this article, we discuss how Spring Cloud Gateway FilterFactories can handle errors in incoming requests and responses. We explore a scenario where a custom gateway filter factory mutates incoming requests and one backend microservice responds with HTTP-400 or HTTP-404 status codes.

NGINX Blocks Cross-Origin Request in Tech Support Deployment

While deploying a React app on a Ubuntu VM with NGINX, Spring, and a local database, the tech support team encountered an issue with Cross-Origin Request Blocked. This JSON provides a suggested title, short title, and tags for the article.

Setting Up Spring Boot App with OpenID Connect (OIDC) Login in GitPod

In this tutorial, we will guide you through the process of setting up a Spring Boot application with OpenID Connect (OIDC) login in GitPod. We will be using the @oktadev/auth0-spring-boot-passkeys-demo GitHub repository as a reference. By the end of this guide, you will have a working Spring Boot app with OIDC login in GitPod.

Spring Boot Windows Server: Fix Stack Overflow Error in Java Aspose-PDF Accept Method

Learn how to fix the Stack Overflow error that occurs in the Java Aspose-PDF Accept method in a Spring Boot application deployed on Windows Server. This SEO-optimized article provides a solution to the issue and invites the audience to read more on the tech support site.

Issue Unable to Switch SMS Message Email Message at Runtime using Spring Boot

Having trouble switching SMS and Email messages at runtime in Spring Boot? Learn how to modify spring.profiles.active to resolve the issue.

Springboot 3.2: Managing DB Switchover for Write Db Queries with Tomcat JDBC Pool

Learn how to manage database switchover for write Db queries in Springboot 3.2 using Tomcat JDBC Pool (org.apache.tomcat.jdbc.pool.DataSource). This tutorial provides a step-by-step guide on how to configure and use DataSource in your Springboot application for efficient database operations.

Unable to Execute Platform Threads in Spring Boot Application: NIO Threads Working

Having trouble executing platform threads in your Spring Boot web application? Learn about the issue and how to solve it with NIO threads.

How to Implement Cucumber Integration Tests with JWT Tokens in Spring Security Application

Learn how to implement Cucumber integration tests in a Spring Security application that uses JWT tokens for authentication. This tutorial will guide you through creating custom filters and configuring your application for successful test execution.

Specify 'not null' Spring Data REST/QueryDSL HTTP Query Parameter in Tech Support Site

Learn how to specify 'not null' Spring Data REST/QueryDSL HTTP query parameter for a purchaseDate field in a Car entity type in a tech support site.

StompJS Client Disconnects Not Firing afterConnectionClosed Method in React Spring Boot App

Having trouble with StompJS client disconnects not firing the afterConnectionClosed method in a React Spring Boot application? This article provides a potential solution.

Migrating Spring Boot 2.7 to 3.2 with Jakarta Faces 4.0: A Comprehensive Guide

In this article, we will guide you through the process of migrating a Spring Boot 2.7 project that uses JSF (Mojarra, 4) to Spring Boot 3.2 with Jakarta Faces 4.0. We'll explore the necessary configurations, changes, and potential challenges, to ensure a smooth transition. Don't miss out on this essential guide for Java developers looking to upgrade their Spring Boot projects.

Troubleshooting OAuth2.0 Access Token Response: 401 in Spring Boot 3 with Azure AD

Having trouble connecting to Azure AD and receiving an authentication response in Spring Boot 3? Learn how to troubleshoot OAuth2.0 Access Token Response: 401 errors in this tech support article. Read more to find a solution.

Which Spring Boot Version is Compatible with Tomcat 10.0.27?

This tech support article aims to help those who are trying to update their Spring Boot applications to version 2.7.x and are having difficulty figuring out which version is compatible with Tomcat 10.0.27.

Saving Shopping Cart Lists in a Java Spring Boot and Angular App using localStorage

Learn how to save shopping cart lists in a Java Spring Boot and Angular application using localStorage for price and quantity calculations. This approach allows for a faster and more efficient user experience.

Spring Boot React CRUD App: Button Changes URL But Page Doesn't Change

Having trouble with a Spring Boot React CRUD app where buttons change the URL but not the page? Learn how to troubleshoot this issue with our step-by-step guide.

Spring Boot 3.2.1: Can't Load Implementation Version

Having trouble with Spring Boot 3.2.1? Learn how to troubleshoot the issue of the Implementation Version not loading in this tech support article. Discover the causes and solutions to this problem, and how to prevent it in the future. Stay informed with the latest tech support tips and tricks. Read more!

Spring WebFlux WebFilter: Response Body Modification Issue

Learn about the issue with modifying the response body in Spring WebFlux WebFilter and possible solutions. Stay updated on the latest tech support news and tips.

Setting Default Encoding in application.properties for Springboot Applications

Learn how to set the default encoding in application.properties for Springboot applications. This article covers the basics of configuring encoding settings in your Springboot application. Improve your tech support knowledge with this essential guide.

Excluding Included Profiles in Spring: A Comprehensive Guide

Learn how to exclude included profiles in Spring with this easy-to-follow guide. Improve your Java development skills and optimize your Spring configurations.

Configuring Multiple FilterChains with WebSecurityConfigurerAdapter

Learn how to configure multiple FilterChains in Spring Security using the WebSecurityConfigurerAdapter. This tutorial will guide you through the process and help you secure your web applications. Read more about tech support tips and tricks.

Solving Sentry JDBC Integration and P6Spy Connection URL Issues in Spring Boot Project

Learn how to troubleshoot and resolve common issues with Sentry JDBC integration and P6Spy connection URL approach in Spring Boot projects. Improve the performance and reliability of your applications by following our step-by-step guide.

Upgrading to Spring Boot 3.2 with Spring Security 6.2.0: Resolving Argument Type Naming Issues

Upgrading to Spring Boot 3.2 and Spring Security 6.2.0 can result in naming issues for arguments of type [java.lang.String]. Learn how to resolve this issue in this tech support article. For more tech support articles, visit our site.

Understanding Okta User Roles & Authorities in Spring Boot Applications

Learn about the roles and authorities of Okta users in Spring Boot applications. This article covers the basics of integrating Okta with Spring Boot and how to manage user permissions. Improve your application's security and user management with Okta. Read more about tech support and user management.

Implementing Spring Security LDAP without WebSecurityConfigurerAdapter

Explore how to implement Spring Security LDAP without using WebSecurityConfigurerAdapter. Learn about the benefits of this approach and how to configure it for your application's security needs.

SpringBoot package does not exist: How to solve it?

SpringBoot package does not exist is a common error faced by Java developers. Learn how to solve it and avoid the issue in the future. Discover more about Java and SpringBoot on our tech support site.

Can Springdoc Read and Combine Configs from Autoscan and File?

Learn how Springdoc can read and combine configs from autoscan and file. Discover the benefits of using Springdoc for your API documentation.

Issues with ECS Service Discovery and Spring Boot Connectivity

ECS Service Discovery and Spring Boot Connectivity: A Guide to Resolving Issues

Troubleshooting Spring Boot JPA Issues: A Comprehensive Guide

Learn how to effectively troubleshoot common issues with Spring Boot JPA. This comprehensive guide provides step-by-step solutions and best practices to resolve any problems you may encounter while using Spring Boot JPA.

Troubleshooting CORS Configuration Issues in Spring Cloud Gateway

Learn how to troubleshoot and fix CORS configuration issues in Spring Cloud Gateway. This article provides step-by-step instructions and tips to ensure seamless cross-origin resource sharing in your Spring Boot applications.

How to Use SSH Tunnelling in IntelliJ Spring Boot Application

Learn how to use SSH tunnelling in your IntelliJ Spring Boot application. This article provides a step-by-step guide on setting up and configuring SSH tunnelling for secure communication between your application and the server.

Byte Array vs Spring Resources: Differences and Pros and Cons

Learn about the differences and pros and cons of using byte arrays and Spring resources in your tech projects. Explore how these concepts relate to arrays, Spring, images, files, and resources.

Unused properties in aplication.properties file in Spring Boot

Learn how to identify and remove unused properties in the aplication.properties file in Spring Boot. This article provides step-by-step instructions and tips for optimizing your Spring Boot application.

Microservice Health Check Instance Docker

Learn how to perform health checks on microservice instances running in Docker containers. This article explores the use of Java, Spring Boot, Docker, and Kubernetes to ensure the health and availability of microservices.

Fixing the Spring Okta Callback Set-Cookie SESSION Issue

Learn how to resolve the issue of Spring Okta callback setting the Set-Cookie SESSION twice. This article provides step-by-step instructions and explanations, focusing on Java, Spring Boot, session management, Redis, and Okta.

HikariCP Connection Pool Configuration and Tuning in AKS

Learn how to configure and tune the HikariCP connection pool in Azure Kubernetes Service (AKS) for optimal performance. This article provides step-by-step instructions and best practices for optimizing your application's connection pooling in a Spring Boot environment with Azure SQL Database.

React Client Headers Are Missing in the Server Spring Boot - While They Do Arrive with Postman

Learn how to troubleshoot the issue of missing headers from the React client in the server Spring Boot. While the headers arrive successfully with Postman, they seem to be missing when using React. Explore potential solutions and configurations to resolve this problem.

Handling Exceptions with WebClient in Java and Spring WebFlux

Learn how to effectively handle exceptions when using a WebClient in Java and Spring WebFlux. Discover best practices, tips, and tricks for error handling in your web applications.

Spring and Factorymethod

Learn about the Spring framework and how to use the Factorymethod design pattern to enhance your application's flexibility and scalability. This article explores the integration of Spring with Factorymethod and how it can be leveraged to improve code maintainability and extensibility.