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Full-Stack Internet Architecture
Full-Stack Internet Architecture
Jul 21, 2020 · Backend Development

Preventing Duplicate Submissions in Java: Front‑end and Back‑end Solutions with HashMap, Fixed Array, DCL and LRUMap

This article explains how to prevent duplicate form submissions in a single‑node Java Spring Boot application by first simulating the user scenario, then showing front‑end button disabling, and finally presenting five back‑end idempotency implementations ranging from a simple HashMap to a reusable LRUMap‑based utility.

BackendIdempotencyJava
0 likes · 17 min read
Preventing Duplicate Submissions in Java: Front‑end and Back‑end Solutions with HashMap, Fixed Array, DCL and LRUMap
macrozheng
macrozheng
Jul 20, 2020 · Backend Development

How to Prevent Duplicate Submissions in Java: Simple Backend Solutions

This article explores practical methods to prevent duplicate submissions in Java applications, starting with a simple front‑end button disabling technique and progressing through several backend strategies—including HashMap, fixed‑size array, double‑checked locking, and Apache Commons LRUMap—complete with code samples and performance considerations.

BackendIdempotencyJava
0 likes · 17 min read
How to Prevent Duplicate Submissions in Java: Simple Backend Solutions