struts.xml文件配置的顺序

在配置struts.xml的默认action时，出现了The content of element type "package" must match "(result-types?,interceptors?,default-interceptor-ref?,default-action- ref?,default-class-ref?,global-results?,global-exception-mappings?,action*)"错误，下面是配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC 
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 
"http://struts.apache.org/dtds/struts-2.0.dtd"> 
<struts>
<constant name="struts.custom.i18n.resources" value="mess"></constant>
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<package name="struts2" extends="struts-default" namespace="/skill">
	<global-results>
		<result name="login">/login.jsp</result>
		<result name="error">/error.jsp</result>
	</global-results>
	<default-action-ref name="mo"></default-action-ref>
	<action name="mo" class="com.randy.com.DefaultAction">
		<result name="success">/welcome.jsp</result>
	</action>
	<action name="login" class="com.randy.com.LoginAction">
		<result name="success">/welcome.jsp</result>
	</action>
</package> 
</struts>

将文件改成：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC 
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 
"http://struts.apache.org/dtds/struts-2.0.dtd"> 
<struts>
<constant name="struts.custom.i18n.resources" value="mess"></constant>
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<package name="struts2" extends="struts-default" namespace="/skill">
	<default-action-ref name="mo"></default-action-ref>
	<global-results>
		<result name="login">/login.jsp</result>
		<result name="error">/error.jsp</result>
	</global-results>
	<action name="mo" class="com.randy.com.DefaultAction">
		<result name="success">/welcome.jsp</result>
	</action>
	<action name="login" class="com.randy.com.LoginAction">
		<result name="success">/welcome.jsp</result>
	</action>
</package> 
</struts> 

这样错误就消除了，错误原因是配置的元素顺序错了。
正确的顺序是：
result-types
interceptors
default-interceptor-ref
default-action-ref
default-class-ref
global-results
global-exception-mappings
action*


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