json依赖的jar
http://blog.csdn.net/simonhe1973/article/details/5456640

json-lib-2.3-jdk15.jar
commons-beanutils-1.7.0.jar
commons-httpclient-3.1.jar
commons-lang-2.3.jar
commons-logging-1.0.4.jar
commons-collections-3.1.jar
ezmorph-1.0.3.jar

这些包可以从一下地方下载：
http://commons.apache.org/index.html
http://json-lib.sourceforge.net/
http://ezmorph.sourceforge.net/
http://www.docjar.com/