利用简单的静态方法调用，即可发送GET、POST请求，并携带自定义头信息，极大地简化了对外部服务的访问。
不过随着Hutool 4.x和5.x的相继问世，Hutool 3.9.x已经逐渐退出历史舞台。如果你的项目还在使用JDK 7，Hutool 4.x将是更好的选择。这个经典版本为Hutool后来的发展奠定了坚实基础，其设计理念至今仍在影响每个后续版本。
Hutool is designed to replace the messy util packages found in most projects. It is organized into modular components, so you only need to import what you use.
// Date arithmetic Date tomorrow = DateUtil.offsetDay(date, 1); boolean isWeekend = DateUtil.isWeekend(date);
import cn.hutool.crypto.SecureUtil; public class SecurityDemo public static void main(String[] args) String sensitiveData = "SuperSecretPassword123"; // Quick MD5/SHA-256 generation String hashedOutput = SecureUtil.sha256(sensitiveData); System.out.println("Secure Hash: " + hashedOutput); // Simple symmetric AES handling byte[] secretKey = SecureUtil.generateKey("AES").getEncoded(); String cipherText = SecureUtil.aes(secretKey).encryptHex(sensitiveData); System.out.println("Encrypted Hex: " + cipherText); Use code with caution. Critical Benefits of Deploying the 5.8.39 Version hutool 39
To introduce Hutool's capabilities into your project workspace, update your dependency configurations to point precisely to the . Maven Configuration
user wants a long article about "hutool 39". This likely refers to version 5.8.39 of the Hutool Java library. I need to gather information about this specific release, including new features, improvements, API changes, and security fixes. I'll search for official release notes, articles, and documentation. search results show some relevant links. The first result (0) seems to be a general Hutool page. The second result (1) appears to be a release note from newreleases.io or similar. The third result (2) is about CollectorUtil. The fourth result (3) is about an upgrade. The fifth result (4) shows Maven repository info. The sixth result (5) is about API changes. I need to open the most promising links to gather detailed information about version 5.8.39. release notes for version 5.8.39 provide a good list of new features and bug fixes. I should also look for any official changelog or documentation. I'll search for "hutool 5.8.39 changelog" and "hutool 5.8.39 github". have gathered sufficient information to write a comprehensive article about Hutool version 5.8.39. The article will cover an introduction to Hutool, key features of version 5.8.39, new features like SSE support and HutoolAI, bug fixes, performance improvements, and migration considerations. I will also include sections on how to upgrade, an overview of Hutool's modules, and a conclusion. Now, I will structure the article. well-architected Java project often relies on an efficient toolbox. Released on June 20, 2025, Hutool 5.8.39 stands as a significant update within the stable 5.x branch of this beloved Java utility library. This article provides a detailed analysis of Hutool 5.8.39, exploring its new features, key bug fixes, performance improvements, and how you can integrate it into your projects today.
This module abstracts Java’s native HttpURLConnection . In 3.9, it supports synchronous GET/POST, form data, file uploads, and automatic cookie management without external dependencies like Apache HttpClient.
User user = BeanUtil.toBean(map, User.class); Critical Benefits of Deploying the 5
cn.hutool hutool-all 5.8.39 Use code with caution. For Gradle users: implementation 'cn.hutool:hutool-all:5.8.39' Use code with caution.
Performance tuning is a major focus in version 5.8.39, which includes deep optimizations for internal property copying mechanisms—specifically the XXXToMapCopier workflow. This update reduces CPU cycles when reflection tools process high-frequency entity mappings:
Mastering Hutool: Streamlining Java Development with Version 5.8.39
The most eye-catching addition in 5.8.39 is the expansion of the hutool-ai module. This release introduces the new , which provides more standardized support for AI interface calls. I need to gather information about this specific
This article will serve as your definitive guide, covering everything from a cutting-edge feature release of the popular Java toolkit to a niche piece of automotive software.
HttpUtil.post(String urlString, Map paramMap) : Submits an HTTP POST request with form parameters.
This is the standout feature of this release. The hutool-ai module is designed to be a unified API for interacting with various large language models (LLMs). With it, developers can effortlessly switch between multiple AI services without needing to learn different SDKs. As of this release, it supports major models like DeepSeek, OpenAI, Grok, and ByteDance's Doubao .