Anh Trần Tuấn articles - 250 total
Design Multi-Step Forms Efficiently on the Server-Side with Java
1. Understanding Multi-Step Forms on the Server-Side A multi-step form breaks a single...
Secrets to Masking Sensitive Data Before Sending to the Frontend in Java
1. Why Masking Sensitive Data is Essential Masking data refers to transforming sensitive...
Reasons and Ways to Fix 'Required a Bean That Could Not Be Found' in Spring Boot
1. What Does 'Required a Bean That Could Not Be Found' Mean? Spring Boot relies on...
Solving FileNotFoundException When Handling MultipartFile in Spring Boot
1. Understanding the FileNotFoundException This exception occurs when your application...
Upload Files with Special Characters to S3 Buckets and Handle Presigned URL Errors
1. Understanding the Problem Before diving into solutions, let’s examine why files with...
Why ‘String Cannot Be Converted to JSONObject’ Occurs and How to Fix It
1. Understanding the Error: What Does It Mean? When Java processes JSON data using...
Why Your Spring Data JPA Entity Classes Are Not Recognized and How to Fix It
1. Understanding the Issue Spring Data JPA relies on entity classes to interact with your...
Building a Detailed Role-Based Access Control System with Spring Security and Spring Boot
1. Introduction to Role-Based Access Control (RBAC) RBAC is a widely adopted model where...
Secrets to Optimizing and Organizing Liquibase Scripts in Spring Boot for Seamless Database Migrations
1. Understanding Liquibase in Spring Boot 1.1 What is Liquibase? Liquibase is...
Secrets to Designing an Effective UserDTO in Spring Boot Applications
1. What is a UserDTO, and Why is it Important? The UserDTO is a lightweight object used to...
Reasons You’re Not Receiving JWT Tokens and How to Fix It in Spring Security
1. Understanding Why JWT Tokens Are Not Received JWT issues can arise at several stages of...
DTO and Entity Separation is Crucial for Java Backend Applications
1. What are DTOs and Entities? Before exploring their nuances, it is crucial to define...
Reasons Why Request Mapping Fails in Spring Boot and How to Fix It
1. Why Request Mapping Fails in Spring Boot The failure of request mappings typically...
Techniques for Configuring Executors and Guava RateLimiter for Effective Multithreaded Processing
1. Understanding Executors and Their Role in Multithreading 1.1 What is an...
Building Dynamic Queries in Spring Boot with JPASpecificationExecutor
1. Understanding JPASpecificationExecutor JPASpecificationExecutor is a Spring Data JPA...
Handling Errors When Importing CSV Data into a Database in Spring Boot
1. Why CSV Data Import Is Tricky Importing data from CSV files is deceptively simple. At...
Thymeleaf or WebMvcConfigurer is the Right Choice for Your Spring UI Application
1. Understanding Thymeleaf and WebMvcConfigurer 1.1 What is...
Build a Custom Event Logger for API Monitoring in Spring Boot
1. Why Do You Need a Custom Event Logger? A custom event logger enables you to track API...
Your Java Application in Docker Fails on HTTP and How to Fix It
1. Understanding the Problem: Why HTTP Errors Occur in Dockerized Java Applications Java...
Spring State Machine Is Crucial for Managing Complex Workflows and Error Handling
1. What Is Spring State Machine? Spring State Machine is a lightweight yet powerful...
Techniques for Sorting by Multiple Columns in JPA with Dynamic Calculations
1. Understanding the Basics of Multi-Column Sorting in JPA Multi-column sorting involves...
ThreadContext.put() and MDC.put() Differ in Log4j: A Deep Dive with Examples
1. What Are ThreadContext and MDC in Log4j? Before comparing, let's first establish a...
Visualizing Data with Graphs in Java Using NetBeans
1. Why Choose Java and NetBeans for Graph Visualization? Java, being a versatile and...
Mastering Java Programming with Conversion and Casting
1. What Are Conversion and Casting? Before diving into examples, let’s clarify the...
Methods and Techniques for Working with CSV Files in Java
1. Reading CSV Files in Java One of the most common operations with CSV files is reading...
Local Variables and Method Parameters in Java
1. What Are Local Variables and Method Parameters? 1.1 Local Variables: The...
Secrets to Avoiding Common Mistakes in Java's Try-Catch Blocks
1. Understanding the Basics of Try-Catch in Java To lay the foundation, let’s revisit how...
Tips for Iterating Through Arrays with Null Elements in Java: A Complete Guide with Code Examples
1. Why Null Elements Matter in Arrays Null elements in arrays can represent missing or...
Building a Binary Tree in Java is Essential: A Step-by-Step Guide with In-Depth Analysis
1. What Is a Binary Tree? A binary tree is a hierarchical data structure where each node...
Reasons Your Java Code Compiles in IDE but Fails with javac
1. IDE vs javac: Understanding the Difference To uncover the reasons for this issue, it's...