List转换成JSON对象

1、具体错误如下

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/beanutils/DynaBean
	at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:227)
	at net.sf.json.JSONArray._processValue(JSONArray.java:2514)
	at net.sf.json.JSONArray.processValue(JSONArray.java:2539)
	at net.sf.json.JSONArray.addValue(JSONArray.java:2526)
	at net.sf.json.JSONArray.element(JSONArray.java:1725)
	at net.sf.json.JSONArray.addAll(JSONArray.java:1263)
	at net.sf.json.JSONArray.addAll(JSONArray.java:1255)
	at com.you.file.upload.util.ListToJSON.main(ListToJSON.java:49)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.beanutils.DynaBean
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 8 more

2、错误原因

lib目录下未导入commons-beanutils-1.8.0.jar

3、解决办法

向WEB-INF目录下的lib目录导入commons-beanutils-1.8.0.jar