Hutool 39 - 

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>3.9.0</version>
</dependency>

Making a GET or POST request in native Java is verbose. Hutool makes it a one-liner.

// Simple GET request
String response = HttpUtil.get("https://api.example.com/data");

// POST with parameters
HashMap<String, Object> paramMap = new HashMap<>();
paramMap.put("username", "hutool");
paramMap.put("password", "123456");
String result = HttpUtil.post("https://api.example.com/login", paramMap);

Hutool 3.9 won’t win a design award. It’s not elegant in a functional-programming sense.
But it will save you from writing the same if (s == null || s.trim().isEmpty()) for the thousandth time.

Add it to your pom.xml:

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>3.9.0</version>
</dependency>

Then start coding like Java was meant to be: productive, not pedantic.

Have you used Hutool? What’s your favorite utility from version 3.9? Let me know in the comments.

is a maintenance release of the popular Java utility library, published on June 20, 2025

. It focuses on expanding AI integration, improving core performance, and adding practical utility methods. 🤖 AI & SSE Enhancements SSE Support parameter to Server-Sent Events (SSE) streaming functions. Timeout Config : New configuration options for stream timeouts. New Interfaces : Added "Text-to-Image" (文生图) support for Video Generation : Added model support for Doubao video generation. HutoolAI Platform hutool 39

: Introduction of a dedicated platform module for AI operations. 🛠️ Core & Utility Updates Desensitization DesensitizedUtil now includes a method for passport number Performance : Optimized the XXXToMapCopier for faster object-to-map conversions. Assertions

methods to verify if a collection is empty, including new unit tests. : Introduced RecyclableBatchThreadPoolExecutor for handling recyclable batch tasks. 🌐 HTTP & Database HTTP Config setIgnoreContentLength parameter to optionally ignore response length headers. now supports global settings to optimize large query performance. ⚠️ Security & Compatibility Vulnerability Checks : As of this release, tools like CVE Details

monitor this version for potential security issues; always check the latest security advisories before deployment. JDK Support : Version 5.x requires Maven Central : Available under the group ID hutool-all Full library bundle hutool-core Basic tools (Array, String, Date, etc.) hutool-http Client-side HTTP requests JDBC wrapper & SQL execution If you're using an older version, would you like a migration guide dependency snippet cn.hutool:hutool-extra 5.8.39 vulnerabilities | Snyk

// Write content to a file (auto-creates parent dirs)
FileUtil.writeUtf8String("Server started", "/logs/status.txt");

// Read all lines into a List
List<String> lines = FileUtil.readLines("/logs/status.txt", CharsetUtil.UTF_8); &lt;dependency&gt;
    &lt;groupId&gt;cn


// Generate MD5 hash
String hash = SecureUtil.md5("mySecret123");


// Simple HTTP GET
String html = HttpUtil.get("https://api.example.com/health");