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Spring Boot

A collection of 31 issues

Configuring Web Security in Spring Web and Spring WebFlux with Spring Boot 3.x and Java 17

Team is proactively working on spring boot 3.x upgrade and java 17. this post guide you how to migrate those Web Security Config in both Spring Web and Spring WebFlux. Securing web applications is a critical aspect of modern software development. In Spring applications, configuring web security is made

Implementing Filters in Spring Web and Spring WebFlux

Introduction Team is proactively working on spring boot 3.x upgrade and java 17. this post guide you how to migrate those Filters in both Spring Web and Spring WebFlux. Filters are a fundamental aspect of web development, allowing developers to intercept and manipulate incoming requests and outgoing responses. In

A Comprehensive Guide to Context Path Configuration in Spring Web and Spring WebFlux

Introduction Team is working on spring boot version upgrade to 3.x and java to java 17. We noticed a few changes required for Context Path. The context path plays a crucial role in web applications, serving as the prefix to all URLs within the application. Configuring the context path

A Comprehensive Guide to Using H2 In-Memory Database in Unit Tests

Introduction Unit testing is an integral part of software development, ensuring that individual components of an application function as expected in isolation. When testing components that interact with databases, using an in-memory database is a common approach to achieve fast and reliable tests. In this guide, we'll explore how to

why @WithMockUser still got 401 unauthorized

@AutoConfigureMockMvc for none reactive spring application, the Servlet API and Servlet containers, spring-boot-starter-web, please use MockMvc. import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc; @DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD) @AutoConfigureMockMvc @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT) public class IntegrationTestsBase { @Autowired protected MockMvc mockMvc; ... mockMvc.perform(

Spring Boot Retry Example

we encountered an unusual SSL handshake error affecting a subset of our applications. The issue exhibited a sporadic nature, with approximately a 20% reproduction rate, and intriguingly, a retry attempt consistently resolved it. For a straightforward workaround, we aim to implement the retry logic elegantly. Spring Retry module provides the

Investigating SSL Handshake Issues(javax.net.ssl.SSLException: Received fatal alert: internal_error) During Migration to Spring Boot 3.x and Java 17

Recently, our team embarked on the task of migrating applications to Spring Boot 3.x and Java 17. However, during this transition, we encountered an unusual SSL handshake error affecting a subset of our applications. The issue exhibited a sporadic nature, with approximately a 20% reproduction rate, and intriguingly, a

Automate Form Filling in PDFs Using iText 5 Library in Java

Have you ever needed to automatically fill out PDF forms with preset data using a Java application? In this post, we'll explore how to achieve this using the iText 5 library. iText is a popular Java library for creating and manipulating PDF documents, including form filling. We'll walk you through

Efficient File Transfer: Pushing and Pulling Files Between a Spring Boot App and an sFTP Server

Are you a developer looking to seamlessly exchange files between your Spring Boot application and an sFTP server? Whether it's pushing files from your app to the server or pulling files from the server to your app, this post will guide you through the process. In this tutorial, we'll cover

how to do LDAP paged search via spring-ldap?

When an LDAP client is accessing a server across a slow connection, or if the client suspects that the result set from a given query may be very large, the client should be able to retrieve a result set in small pieces. The Simple Paged Result extended control allows this