详情 :http://commons.apache.org/

Components Description Latest Version Released
Attributes Runtime API to metadata attributes such as doclet tags. 2.2 2006-08-03
BCEL Byte Code Engineering Library - analyze, create, and manipulate Java class files 5.2 2007-06-14
BeanUtils Easy-to-use wrappers around the Java reflection and introspection APIs. 1.8.3 2010-03-28
Betwixt Services for mapping JavaBeans to XML documents, and vice versa. 0.8 2006-12-21
BSF Bean Scripting Framework - interface to scripting languages, including JSR-223 3.1 2010-24-06
Chain Chain of Responsibility pattern implemention. 1.2 2008-06-02
CLI Command Line arguments parser. 1.2 2009-03-19
Codec General encoding/decoding algorithms (for example phonetic, base64, URL). 1.8 2013-04-28
Collections Extends or augments the Java Collections Framework. 4.0 2013-11-24
Compress Defines an API for working with tar, zip and bzip2 files. 1.6 2013-10-26
Configuration Reading of configuration/preferences files in various formats. 1.10 2013-10-27
CSV Component for reading and writing comma separated value files. N/A N/A
Daemon Alternative invocation mechanism for unix-daemon-like java code. 1.0.15 2013-03-04
DBCP Database connection pooling services. 1.4 2010-02-14
DbUtils JDBC helper library. 1.5 2012-07-20
Digester XML-to-Java-object mapping utility. 3.2 2011-12-13
Discovery Tools for locating resources by mapping service/reference names to resource names. 0.5 2011-04-28
EL Interpreter for the Expression Language defined by the JSP 2.0 specification. 1.0 2003-06-18
Email Library for sending e-mail from Java. 1.3.2 2013-10-25
Exec API for dealing with external process execution and environment management in Java. 1.1 2010-10-08
FileUpload File upload capability for your servlets and web applications. 1.3 2013-03-27
Functor A functor is a function that can be manipulated as an object, or an object representing a single, generic function. N/A N/A
Imaging (previously called Sanselan) A pure-Java image library. N/A N/A
IO Collection of I/O utilities. 2.4 2012-06-12
JCI Java Compiler Interface 1.1 2013-10-14
JCS Java Caching System 1.3 2007-06-05
Jelly XML based scripting and processing engine. 1.0 2005-06-16
Jexl Expression language which extends the Expression Language of the JSTL. 2.1.1 2011-12-24
JXPath Utilities for manipulating Java Beans using the XPath syntax. 1.3 2008-08-14
Lang Provides extra functionality for classes in java.lang. 3.1 2011-11-14
Launcher Cross platform Java application launcher. 1.1 2004-08-22
Logging Wrapper around a variety of logging API implementations. 1.1.3 2013-03-21
Math Lightweight, self-contained mathematics and statistics components. 3.2 2013-04-06
Modeler Mechanisms to create Model MBeans compatible with JMX specification. 2.0.1 2007-06-25
Net Collection of network utilities and protocol implementations. 3.3 2013-06-12
OGNL An Object-Graph Navigation Language N/A N/A
Pool Generic object pooling component. 2.0 2013-11-11
Primitives Smaller, faster and easier to work with types supporting Java primitive types. 1.0 2003-11-05
Proxy Library for creating dynamic proxies. 1.0 2008-02-28
SCXML An implementation of the State Chart XML specification aimed at creating and maintaining a Java SCXML engine. It is capable of executing a state machine defined using a SCXML document, and abstracts out the environment interfaces. 0.9 2008-12-01
Validator Framework to define validators and validation rules in an xml file. 1.4.0 2012-02-03
VFS Virtual File System component for treating files, FTP, SMB, ZIP and such like as a single logical file system. 2.0 2011-08-24
Weaver Provides an easy way to enhance (weave) compiled bytecode.

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