Hutool 3.9 -

If you are maintaining a project that requires this specific version, you can add it via Maven:

Security implementation is often error-prone. Hutool 3.9 wraps the complex Java Cryptography Architecture (JCA). Hutool 3.9

import cn.hutool.crypto.SymmetricCrypto; import cn.hutool.crypto.symmetric.AES; If you are maintaining a project that requires

| Feature | Apache Commons (IO/Lang) | Hutool 3.9 | | :--- | :--- | :--- | | | Highly specialized libraries (separate JARs for IO, Lang, etc.) | All-in-one "Swiss Army Knife" approach. | | Naming | Generally longer class names (e.g., IOUtils , FileUtils ). | Shorter, memorable names ( FileUtil , IoUtil ). | | Method Chaining | Limited support in older versions. | Heavy emphasis on fluent APIs and builder patterns. | | Chinese Localization | Standard English documentation. | FileUtils ). | Shorter