在JSF PhaseListener中添加cookie

import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CookiePhaseListener implements PhaseListener {

    @Override
    public void beforePhase(PhaseEvent event) {
        FacesContext facesContext = event.getFacesContext();
        HttpServletRequest request = (HttpServletRequest) facesContext.getExternalContext().getRequest();
        HttpServletResponse response = (HttpServletResponse) facesContext.getExternalContext().getResponse();

        // 创建并设置cookie
        Cookie cookie = new Cookie("myCookie", "cookieValue");
        cookie.setMaxAge(3600); // 设置cookie的过期时间
        response.addCookie(cookie);
    }

    @Override
    public void afterPhase(PhaseEvent event) {
        // 执行其他自定义逻辑
    }

    @Override
    public PhaseId getPhaseId() {
        return PhaseId.ANY_PHASE; // 监听所有JSF生命周期阶段
    }
}

<application>
    <lifecycle>
        <phase-listener>com.example.CookiePhaseListener</phase-listener>
    </lifecycle>
</application>