Drastically reduces GC overhead during heavy multi-threaded batch operations. Enhanced DesensitizedUtil with Passport Number masking.
Simple JSON parsing and generation, designed for ease of use over extreme performance.
If you’re a Java developer, you’ve almost certainly run into the same pain points: tedious date conversions, clunky file I/O, reflection headaches, and the dreaded if (collection == null || collection.isEmpty()) . has been quietly solving these problems for years.
Even as newer versions like 5.x become standard for JDK 8+, the 3.x and 4.x branches remain relevant for legacy environments. The "39 new" release solidified Hutool's reputation as a "swiss-army knife" for Java because: Zero Dependencies
To use Hutool 5.8.39 in your project, add the following dependency to your pom.xml : hutool 39 new
：修复了 ZipUtil 在调用 zlib 和 unZlib 后未正确释放资源的问题，避免资源泄漏。
Below is an extensive guide covering the architecture of the tool library, the newest structural additions to version 5.8.39, and practical implementation strategies for modern production environments. Architecture Overview: The Hutool Philosophy
Copy list of beans to another type in one line.
module was refined to offer faster serialization and deserialization, often used as a lightweight alternative to larger libraries like Jackson or FastJSON. Maven Repository Why Developers Use This Version If you’re a Java developer, you’ve almost certainly
With JDK 21 LTS, virtual threads are production-ready. Hutool 39 new introduces ThreadUtil.newVirtualExecutor() :
The 5.8.x branch introduced several critical features and refinements that distinguish it from earlier iterations.
, a milestone version that significantly expanded its utility library to simplify common Java development tasks.
Prior to version 39, Hutool relied on third-party libraries like JJWT. Now, JwtUtil is built natively. The "39 new" release solidified Hutool's reputation as
Before diving into code, let's break down the scope of this update. Version 6.0.0.M39 introduces:
List<String> lines = new ArrayList<>(); try (BufferedReader br = new BufferedReader(new FileReader("data.txt"))) String line; while ((line = br.readLine()) != null) if (line.trim().length() > 0) lines.add(line.toUpperCase());
Removes jwt.jar (400KB) from your dependencies and provides a fluent API consistent with Hutool's design.
Below is an extensive guide covering everything introduced in this version, complete with functional examples and deployment strategies. Key Upgrades at a Glance Feature / Optimization Primary Benefit