cn.hutool hutool-all 5.8.39 Use code with caution. Gradle Implementation implementation 'cn.hutool:hutool-all:5.8.39' Use code with caution. Summary Table: Major Changes Target Component Description SSE Streams & Multi-Modal APIs New Feature
: Enhanced the XXXToMapCopier for faster object-to-map conversions.
Introduces native masking logic for international passport numbers. XXXToMapCopier Optimization
// 3. Format Date to String String formatted = DateUtil.format(now, "yyyy/MM/dd HH:mm:ss"); hutool 39
Part 1: The Java Utility Ecosystem (Hutool Core & Historical Version 3.9)
Internal data reflection and map conversion routines received a substantial performance pass. Modifications made to XXXToMapCopier reduce overhead during deep object-to-map transformations. This update optimizes heavy batch-processing workloads or JSON serialization preprocessing pipelines.
To help optimize your configuration, are you working on a ? Share public link String content = FileUtil.readUtf8String("/tmp/test.txt")
: The JSON and POI modules were completely rewritten for speed in 5.x.
// UUID (no dash) String id = IdUtil.fastUUID();
StrUtil.format(CharSequence template, Object... args) : Uses {} placeholders for clean, readable string formatting. boolean isEmpty = StrUtil.isBlank(myStr)
boolean isEmpty = StrUtil.isBlank(myStr); String subString = StrUtil.sub(myStr, 0, 5); Use code with caution. 3. File Operations
Hutool was born from a simple, almost poetic premise:
If you are looking for "Hutool 39," you are likely looking for the modern, active version of the library (specifically versions like 5.8.11+ which require JDK 1.8+). Hutool is a popular Java utility library that simplifies JDK standard operations.
// 文件读写：单行完成 FileUtil.writeString("Hello Hutool", "/tmp/test.txt", CharsetUtil.UTF_8); String content = FileUtil.readUtf8String("/tmp/test.txt");