Class org.apache.struts2.json.JSONWriter can not access a member of class org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper with modifiers "public"
该错误的原因:我在userAction中声明了一个loginService接口,是用spring注入的,把它的get方法干掉,或者加上注释@JSON(serialize = false)不让他序列化