探究Struts框架的运作机制和实际应用案例

public class LoginAction extends Action {
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) {

        LoginForm loginForm = (LoginForm) form;
        String username = loginForm.getUsername();
        String password = loginForm.getPassword();

        // 省略验证用户名密码的代码

        return mapping.findForward("success"); // 跳转到登录成功页面
    }
}

public class LoginForm extends ActionForm {
    private String username;
    private String password;

    // 省略getter和setter方法
}

<action-mappings>
    <action path="/login" type="com.example.LoginAction" name="loginForm" scope="request">
        <forward name="success" path="/loginSuccess.jsp"/>
    </action>
</action-mappings>

<form action="login.do" method="post">
    <input type="text" name="username">
    <input type="password" name="password">
    <input type="submit" value="登录">
</form>

<p>登录成功！欢迎您，${username}。</p>