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commons-lang3-3.1.jar

上传者： lishoudi | 上传时间： 2026-02-17 20:35:26 | 文件大小： 4.57MB | 文件类型： ZIP
Apache Commons Lang 3.6 是一个Java库，它提供了对Java语言核心类的扩展，以增强功能和提高开发效率。这个库是针对Java 7.0及更高版本设计的，包含了许多实用工具类，用于处理字符串、数组、日期、枚举、数值、反射等常见编程任务。下面将详细介绍Apache Commons Lang 3.6中的关键知识点： 1. **字符串处理**： - `StringUtils` 类提供了大量静态方法，用于处理字符串，如检查是否为空、填充、截取、替换、分割、连接等。 - `EscapeUtils` 提供了HTML、XML和JavaScript的转义功能，确保在输出时避免XSS攻击。 2. **数组操作**： - `ArrayUtils` 包含了对数组的各种操作，如添加、删除、复制、比较、反转、查找等。 - `BooleanUtils` 和 `NumberUtils` 分别提供了对布尔值和数字数组的特殊处理。 3. **日期和时间**： - `DateUtils` 提供了日期和时间的格式化、解析和比较操作。 - `DurationFormatUtils` 可以格式化时间间隔，如毫秒、秒或分钟。 - `FastDateFormat` 是一个快速且线程安全的日期格式化器。 4. **枚举处理**： - `EnumUtils` 提供了对Java枚举类型的实用方法，如获取枚举值、检查枚举是否存在等。 5. **数学运算**： - `MathUtils` 提供了一些基本的数学函数，包括幂运算、平方根、绝对值等。 - `NumberUtils` 提供了关于数字的一些实用方法，如比较、格式化等。 6. **反射**： - `ClassUtils` 提供了与类相关的帮助方法，如获取类名、加载类、检查类是否实现了特定接口等。 - `FieldUtils` 和 `MethodUtils` 分别提供字段和方法的操作，如获取、设置、调用等。 7. **异常处理**： - `ExceptionUtils` 提供了处理和构建异常的工具方法，如堆栈追踪的提取和格式化。 8. **类型转换**： - `TypeConverter` 和 `TypeUtils` 支持对象之间的类型转换，简化了不同数据类型间的转换操作。 9. **其他实用工具**： - `RandomStringUtils` 生成随机字符串。 - `ToStringBuilder` 和 `ReflectionToStringBuilder` 帮助创建对象的自定义toString方法。 Apache Commons Lang 3.6 还包含了其他很多实用工具类和方法，它们都是为了提高Java开发的效率和代码质量。这个库已经被广泛应用于各种项目中，是Java开发者的重要工具之一。通过引入Apache Commons Lang，开发者可以更专注于业务逻辑，而不用重复实现这些基础的工具功能。

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