按钮不提交表单

Question

我正在创建一个登陆页面，我想把我检索到的提交数据传递给我的服务层。

我的Service层是这样的:

@Component
@Scope("session")
public class LandingPageService implements Serializable{
    /**
     * landingPageDAO
     */
    @Autowired
    private LandingPageDAO landingPageDAO;
    /**
     * LandingPage Instance
     */
    private LandingPage instance = null;
    public LandingPage getInstance() {
        logger.trace("returning instance...");
        if(instance == null) {
            instance = new LandingPage();
        }
        return instance;
    }
    /**
     * writes the LandingPage Domain Object into the DB
     */
    public void persist() {
        logger.trace("persisting...");
        landingPageDAO.persist(instance);
        instance = null;
    }

我的表单是这样的

<h:form class="homepage_invitee_form" action="" method="POST">
                                    <h:inputText required="true" value="#{landingPageService.instance.userEmail}" name="email" placeholder="Email Address"
                                        id="email_address_new" type="text placeholder" />
                                    <p:watermark for="email_address_new" value="Email Address" />
                                    <br />
                                    <h:inputText required="true" value="#{landingPageService.instance.firstName}" name="firstName" placeholder="First Name"
                                        id="firstname_new" type="text placeholder" />
                                    <p:watermark for="firstname_new" value="First Name" />
                                    <h:button value="Request Invitation" type="submit"
                                        styleClass="btn btn-primary opal_btn" id="submit_form_new"
                                        action="#{landingPageService.persist()}"/>
                                </h:form>

当我按提交时，我的表单没有得到处理。我甚至看不到我的日志信息。有什么要改的吗?

Answer 1

阅读<h:button>的标签文档。它呈现GET按钮，不支持action属性。在webbrowser的开发者工具集中调查HTTP流量(在Chrome/IE/Firebug中按F12并检查Network选项卡)也会暗示<h:button>没有执行回发。

使用<h:commandButton>代替，就像每个演示表单提交的JSF教程中所示的那样。

<h:commandButton id="submit_form_new" value="Request Invitation"
    action="#{landingPageService.persist}"
    styleClass="btn btn-primary opal_btn" />

参见:

• h:button与h:commandButton的区别