解决 Type [java.lang.String] is not valid for option items

There are already many solutions on the Internet
http://stackoverflow.com/questions/4331532/multiple-select-in-spring-3-0-mvc

but my problem is that the EL expression is not recognized because the web- xml is generated by Eclipse, the version is too low,
refer to this article to modify web.xml to support EL expressions to solve

http://blog.csdn.net/songylwq/article/details/6167535