Question

我正在尝试从已包含GET参数的页面发送POST请求。没有抛出错误，但控制流似乎跳过了调用应用程序阶段。如果我从没有GET参数的页面尝试相同的POST请求，那么所有事情都可以正常工作。

模板实现这将根据名为 action

的GET参数实现所需组件

<ui:define name = "front">

    <cd:accountSettings rendered = "${accountController.action == 'details'}"/>

    <cd:accountTabShortcut rendered = "${accountController.action == 'loginfo'}"/>  

</ui:define>

组件

<cc:implementation>

    <h:form id = "auth-fm">

        <div class = "fm-input">
            <h:outputLabel for="firstName">#{appMessage['form.label.name.first']}</h:outputLabel>
            <div class = "fm-input-elem">
                <h:inputText styleClass="input-auth" id="firstName" label="firstName" value="#{accountController.firstName}">
                    <f:validator validatorId="nameValidator" />
                    <f:ajax event = "blur" render = "firstNameMessage" />
                </h:inputText>
                <div class = "fm-err">
                    <h:message id = "firstNameMessage" for = "firstName" />
                </div>
            </div>
        </div>

        <div class = "fm-input">
            <h:outputLabel for="lastName">#{appMessage['form.label.name.last']}</h:outputLabel>
            <div class = "fm-input-elem">
                <h:inputText styleClass="input-auth" id="lastName" label="lastName" value="#{accountController.lastName}">
                    <f:validator validatorId="nameValidator" />
                    <f:ajax event = "blur" render = "lastNameMessage" />
                </h:inputText>
                <div class = "fm-err">
                    <h:message id = "lastNameMessage" for = "lastName" />
                </div>
            </div>
        </div>

        <div class = "fm-submit">
            <h:commandButton styleClass="bn-auth lk-bn-rng" id = "authButton" value="#{appMessage['form.text.register']}" action="#{accountController.changeDetails}" />
        </div>

    </h:form>

受管Bean

public class AccountController extends BaseController{

    private String firstName;
    private String lastName;
    @PostConstruct
    public void init(){
        System.out.println("=> Account Controller - init() - enter");

        action = getParam("action");

        firstName = sessionController.getAuthUser().getFirstName();
                lastName = sessionController.getAuthUser().getLastName();

        System.out.println("=< Account Controller - init() - exit");
    }

     public String changeDetails(){
        System.out.println("=> Account Controller - Change Details - start");
        System.out.println("First Name: " + firstName);
        System.out.println("Last Name: " + lastName);
        System.out.println("=< Account Controller - Change Details - start");
        return "account";
    }
    }

当我跟踪阶段监听器时，永远不会调用changeDetails（）方法。通过以下页面进行帖子调用： mySite.com/account.xhtml?action=details 。我认为这可能是问题，但我可以肯定地知道，除了将内容拆分为两个页面之外我不知道任何解决方法：accountDetails和accountLoginfo。

LE 我正在使用带有Glassfish3容器的JSF 2.0和用于GUI的XHTML facelets。

Answer 1

将bean放在视图范围内。这样，@PostConstruct在视图的初始请求中只运行一次，只要您通过ajax与同一视图进行交互并返回null或void，bean就会生效关于行动方法。

另见：

Communication in JSF2 - Managed bean scopes

JSF：混合GET＆amp; POST参数

1 个答案:

另见：