Struts2+spring问题

Question

今天在搭框架时，发现日志里有有这么几行
2011-08-07 22:17:31,453 DEBUG com.opensymphony.xwork2.conversion.impl.InstantiatingNullHandler.debug:68 - Entering nullPropertyValue [target=[com.opensymphony.xwork2.DefaultTextProvider@16eb6bc], property=struts]

2011-08-07 22:17:31,984 DEBUG com.opensymphony.xwork2.conversion.impl.InstantiatingNullHandler.debug:68 - Entering nullPropertyValue [target=org.apache.struts2.util.AttributeMap@17b40fe, property=templateDir]

2011-08-07 22:17:32,437 DEBUG com.opensymphony.xwork2.conversion.impl.InstantiatingNullHandler.debug:68 - Entering nullPropertyValue [target=org.apache.struts2.util.AttributeMap@9fdee, property=theme]

以前没注意，不知道这些空属性值是否有影响，怎么修复

Answer 1

看名称的话是struts的配置属性，你可以在struts-core.jar包中的default.properties里看到相应的说明：
[code="java"]

Standard UI theme

Change this to reflect which path should be used for JSP control tag templates by default

struts.ui.theme=xhtml
struts.ui.templateDir=template
#sets the default template type. Either ftl, vm, or jsp
[/code]