A common issue when receiving data either electronically or from user input is verifying the integrity of the data. This work is repetitive and becomes even more complicated when different sets of validation rules need to be applied to the same set of data based on locale. Error messages may also vary by locale. This package addresses some of these issues to speed development and maintenance of validation rules.

Hutool是一个Java工具包，也只是一个工具包，它帮助我们简化每一行代码，减少每一个方法。针对常用工具提供了如:字段验证器-Validator，屏幕工具-ScreenUtil，验证码CaptchaUtil，NIO封装-NioServer和NioClient，AIO封装-AioServer和AioClient等常用的实用，下面说一下这些工具常用方法。