今天，師弟開發時有遇到一個小問題：struts表單點取消時，出現org.apache.struts.action.InvalidCancelException異常，弄了一陣子，發現用了validate="true"就會出現此異常。然后找到
freiberg 的博客。
說到用
<set-property property="cancellable" value="true"/>
可以解決，馬上復制去試下，行喔，^_^。
---------------------------------引用--------------------------------------
Any existing applications that use the Cancel processing will need to modify their struts-config.xml to set the cancellable property for actions which require it.
In Struts 1.2.9 the <set-property> is used to set the cancellable property for an action....
<action path="/fooAction"
input="/foo.jsp"
validate="true">
<set-property property="cancellable" value="true"/>
<forward name="success" path="/bar.jsp"/>
</action>
From Struts 1.3.x a new cancellable attribute can be used....
<action path="/fooAction"
input="/foo.jsp"
validate="true"
cancellable="true">
<forward name="success" path="/bar.jsp"/>
</action>
In both Struts 1.2.9 and Struts 1.3.x an exception handler can be configured to handle the InvalidCancelException
<action path="/fooAction"
input="/foo.jsp"
validate="true"
cancellable="true">
<forward name="success" path="/bar.jsp"/>
<exception key="errors.cancel"
type="org.apache.struts.action.InvalidCancelException"
path="/foo.jsp"/>
</action>
---------------------------------------end-----------------------------------------------------
剛好我用的是struts是1.2.9的
原文：http://www.tkk7.com/freiberg/archive/2007/10/20/154384.html
posted on 2007-10-31 16:25
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