Struts2 - 传值

        <action name="login_*" class="com.my.action.LoginAction" method="{1}">
            <result type="redirectAction" name="success">main?userName=${userName}&amp;password=${password}</result>
            <result type="redirect" name="false">login</result>
            <result name="input">/pages/Login.jsp</result>
        </action>

            <result name="success" type="redirectAction">
                <param name="actionName">main</param>
                <param name="userName">${userName}</param>
                <param name="password">${password}</param>
            </result>

            HttpServletRequest request = ServletActionContext.getRequest();
            request.setAttribute("userName", getUserName());

import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;