java.lang.IllegalArgumentException: No bean spe...

java.lang.IllegalArgumentException : No bean specified
java.beans.PropertyDescriptor  org.apache.commons.beanutils.PropertyUtils.getPropertyDescriptor( java.lang.Object java.lang.String )
PropertyUtils.java:816
void org.apache.commons.beanutils.BeanUtils.setProperty( java.lang.Object java.lang.String java.lang.Object )
BeanUtils.java:846
void org.apache.commons.beanutils.BeanUtils.populate( java.lang.Object java.util.Map )
BeanUtils.java:726
void org.apache.struts.util.RequestUtils.populate( java.lang.Object java.lang.String java.lang.String , javax.servlet.http.HttpServletRequest )
RequestUtils.java:978
void org.apache.struts.action.RequestProcessor.processPopulate( javax.servlet.http.HttpServletRequest , javax.servlet.http.HttpServletResponse , org.apache.struts.action.ActionForm, org.apache.struts.action.ActionMapping)
RequestProcessor.java:779


FormBean 中属性未初始化

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