structs.xml配置action name不能相同

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<constant name="struts.devMode" value="true"></constant>
<package name="user" extends="struts-default" namespace="/user">
<action name="addUser" class="com.action.user.AddUserAction" method="addUser">
<result name="success">/c_user_list.jsp</result>
<result name="error" >/error.jsp</result>
</action>
<action name="addUser" class="com.action.user.AddUserAction" method="updateUser">
<result name="aa">/updateSuccess.jsp</result>
<result name="error" >/error.jsp</result>
<result name="input">/input.jsp</result>
</action>
<action name="addUser" class="com.action.user.AddUserAction" method="getUserList">
<result name="success">/c_user_list.jsp</result>
<result name="error" >/error.jsp</result>
</action>
</package>
</struts>

action的name命令相同时，返回时报找不同指定的name错误，所有应避免命令相同