Enterprise Java
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Enable or Disable Embedded Tomcat in Spring Boot Using Profiles
In many Spring Boot applications, especially those that support multiple deployment modes, it is common to encounter different runtime environments.…
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Introduction to J2CL
J2CL (Java to JavaScript Compiler) is a Google-backed compiler that enables Java source code to be transpiled into optimized JavaScript.…
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Fine-Grained Authorization with Spring Security and @PreAuthorize Annotations
Spring Security provides powerful tools to secure your Java applications—but one of its most underrated features is method-level authorization using…
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Fix Cannot Load Driver Class: com.mysql.jdbc.driver in Spring Boot
1. Introduction The “can not find driver exception” with “com.mysql.jdbc.driver" means that the Spring Boot application can not load the…
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Securing GraphQL with Spring Security: A Practical Guide
GraphQL provides a flexible and efficient way to query APIs, but with that power comes the need for robust security.…
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Jolokia Spring Boot Integration Example
Monitoring and managing Spring Boot applications can be greatly enhanced using tools like Jolokia, which exposes JMX MBeans over HTTP.…
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Spring Boot 3 + Record-Based DTOs: Cleaner APIs with Better Type Safety
Java 16 introduced records, a new kind of class designed to model immutable data. With the advent of Spring Boot…
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Implementing Multi-Tenant Security with Spring Boot and Spring Security
Multi-tenancy is a software architecture where a single application instance serves multiple tenants (clients), each with its own data and…
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How to Secure REST APIs with Spring Security and JWT (2025 Edition)
In 2025, stateless authentication remains the go-to approach for securing REST APIs. Spring Security combined with JWT (JSON Web Tokens)…
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