Whether you are processing collections, scraping HTTP endpoints with HttpUtil , generating QR codes (yes, 3.9 supports basic QR via QrCodeUtil ), or just formatting dates – Hutool 3.9 makes Java feel like a modern, high-level language.
Handles stream operations (input/output streams, readers/writers) concisely, ensuring streams are closed correctly. 5. Encryption and Decryption ( SecureUtil ) Provides a unified interface for common algorithms. Supported: AES, DES, RSA, MD5, SHA-1.
Version 3.x used older package命名 semantics. When migrating from 3.x to 5.x, class locations change significantly (e.g., com.xiaoleilu.hutool transitioned over time to cn.hutool ).