<struts>
 <package name="Zweibo" extends="struts-default">
 
     <action name="base" class="base"></action>
     <action name="login" class="loginAction" >
         <result name="SUCCESS">success.jsp</result>        
     </action>        
 </package>
 <constant name="struts.objectFactory" value="spring"></constant>
</struts>    

    <bean id="base" class="controller.BaseAction" scope="prototype">
        <property name="allService">
            <ref bean="allService" />
        </property>
    </bean>    
    <bean id="loginAction" class="controller.LoginAction" parent="base" scope="prototype">
    </bean>    

 <s:form action="login">
         <s:textfield label="用户名" name="username"></s:textfield>
         <s:password label="密码" name="password"></s:password>
         <s:submit value="登录"></s:submit>
        </s:form>

public class LoginAction extends BaseAction {

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    private String username;
    private String password;
    
    public String execute()throws Exception{

        //if (this.getAllService().getLoginService().queryUsername(user)){
//        if(username != null)    {
//        return SUCCESS;
//        }else
//            return ERROR;
        return SUCCESS;
    }
}