<filter>

    <filter-name>struts2</filter-name>

    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

</filter>

<filter-mapping>

    <filter-name>struts2</filter-name>

   <url-pattern>*.action</url-pattern>

</filter-mapping>

1、配置struts.xml时Action中不配置namespace，默认namespace为 “ ”

struts.xml中

<package name="test" extends="struts-default" >

    <action name="init_action" class="com.wei.action.LoginAction" method="init">

    <result>/login.jsp</result>

    </action>

</package>

jsp中

<form action="init_action.action" method="post">

    用  户  名：<input type="text" name="user" value="" maxlength="20" size="20"><br>

    密       码： <input type="password" name="pwd" value="" maxlength="20" size="20"><br>

    确认密码：<input type="password" name="pwd" value="" maxlength="20"size="20"> <br>

    <input type="submit" name="login" value="登录">

</form>

2、配置struts.xml时Action中配置namespace=“/test ”

struts.xml中

<package name="test" extends="struts-default"  namespace=/test“”>

    <action name="init_action" class="com.wei.action.LoginAction" method="init">

        <result>/login.jsp</result>

    </action>

</package>

jsp中

<form action="test/init_action.action" method="post">

    用  户  名：<input type="text" name="user" value="" maxlength="20" size="20"><br>

    密       码： <input type="password" name="pwd" value="" maxlength="20" size="20"><br>

   确认密码：<input type="password" name="pwd" value="" maxlength="20"size="20"> <br>

    <input type="submit" name="login" value="登录">

</form>

欢迎交流，评论！