Maven:http://maven.apache.org/download.cgi
Ant:http://ant.apache.org/bindownload.cgi
Velocity:http://velocity.apache.org/download.cgi
FreeMarker:http://freemarker.org/freemarkerdownload.html
Gson:https://code.google.com/p/google-gson/downloads/list?can=1&q=
json-lib:http://sourceforge.net/projects/json-lib/files/
Hadoop:http://hadoop.apache.org/releases.html
Tomcat:http://archive.apache.org/dist/tomcat/
JBoss:http://sourceforge.net/projects/jboss/files/JBoss/
Apache:http://www.apache.org/
Luncene:http://lucene.apache.org/
DbUtils:http://commons.apache.org/proper/commons-dbutils//download_dbutils.cgi
POI:http://www.apache.org/dyn/closer.cgi/poi/release/
JDom:http://www.jdom.org/downloads/index.html
Dom4J:http://sourceforge.net/projects/dom4j/files/
JFinal:http://www.jfinal.com/
Struts:http://struts.apache.org/download.cgi
Spring:http://repo.spring.io/libs-release-local/org/springframework/spring/
Hibernate:http://sourceforge.net/projects/hibernate/files/
原文：http://www.cnblogs.com/zftylj/p/javaopen.html