避免JSF Web应用程序上的后退按钮

// 禁用后退按钮
window.history.pushState(null, null, document.URL);
window.addEventListener('popstate', function (event) {
    window.history.pushState(null, null, document.URL);
});

public void beforePhase(PhaseEvent event) {
    FacesContext context = event.getFacesContext();
    if (context.getCurrentPhaseId() == PhaseId.RENDER_RESPONSE) {
        HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
        response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1
        response.setHeader("Pragma", "no-cache"); // HTTP 1.0
        response.setDateHeader("Expires", 0); // 过期时间
    }
}

public String save() {
    // 保存数据
    return "success";
}