年龄输入字符串时出现错误

谁帮我看下这个问题： 

<action name="loginAction" method="login" class="com.imooc.strtus.loginAction">

       <result name="success">/success.jsp</result>

       <result name="input">/login.jsp</result>

   </action>

年龄：<input type="text" name="age"/>

public class User {

private String userName;

private String password;

private int age;

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

执行出错：

警告: Could not find action or result: /helloword/loginAction.action

No result defined for action com.imooc.strtus.loginAction and result input - action - file:/F:/Program%20Files/apache-tomcat-6.0.44/webapps/helloword/WEB-INF/classes/a.xml:15:83