如何从struts2中的验证中排除操作方法

<action name="exampleAction" class="com.example.ExampleAction">
    <interceptor-ref name="validation">
        <param name="excludeMethods">methodName1, methodName2</param>
    </interceptor-ref>
    <result>/example.jsp</result>
</action>

public class ExampleAction extends ActionSupport {
    public String execute() {
        // 执行逻辑
        return SUCCESS;
    }

    @SkipValidation
    public String methodName1() {
        // 执行逻辑
        return SUCCESS;
    }

    @SkipValidation
    public String methodName2() {
        // 执行逻辑
        return SUCCESS;
    }
}