Question

我已经就这个话题做了几个答案，尤其是来自BalusC的博客。但它在某种程度上不适用于下面的实现。我错过了什么或做了一些完全错误的事情。

我有一个带有几个下拉列表的基本表单，当我提交表单时，即调用submitDetails，它返回以下由"phaseTwo?faces-redirect=true"

的bean支持的字符串PhaseTwoController.java

因此，在phaseOne.xhtml提交时，我希望看到phaseTwo.xhtml上phaseOne.xhtml选择的值<{1}}

以下是代码：

这是由PhaseOne.xhtml

支持的PhaseOneController.java

<h:form>
            <p:panel header="Select country" style="margin-bottom:10px;">
                <h:panelGrid columns="2" cellpadding="5">
                    <p:outputLabel for="country" value="Country: " />
                    <p:selectOneMenu id="country" value="#{phaseOneController.country}" style="width:150px">
                        <p:ajax listener="#{phaseOneController.onCountryChange}" update="subCategory" />
                        <f:selectItem itemLabel="Select Country" itemValue="" noSelectionOption="true" />
                        <f:selectItems value="#{phaseOneController.countries}" />
                    </p:selectOneMenu>

                    <p:outputLabel for="province" value="Province: " />
                    <p:selectOneMenu id="province" value="#{phaseOneController.province}" style="width:150px">
                        <p:ajax listener="#{phaseOneController.onProvinceChange}" update="city" />
                        <f:selectItem itemLabel="Select Province" itemValue="" noSelectionOption="true" />
                        <f:selectItems value="#{phaseOneController.provinces}" />
                    </p:selectOneMenu>

                <p:outputLabel for="city" value="City: " />
                <p:selectOneMenu id="city" value="#{phaseOneController.city}" style="width:150px">
                    <f:selectItem itemLabel="Select City" itemValue="" noSelectionOption="true" />
                    <f:selectItems value="#{phaseOneController.cities}" />
                </p:selectOneMenu>
            </h:panelGrid>

                <p:separator />

                <p:commandButton value="Select" actionListener="#{phaseOneController.submitDetails}" icon="ui-icon-check">
                    <f:param name="country" value="#{phaseOneController.country}" />
                    <f:param name="province" value="#{phaseOneController.province}" />
                    <f:param name="city" value="#{phaseOneController.city}" />
                </p:commandButton>
            </p:panel>
        </h:form>


@ManagedBean
@RequestScoped
public class PhaseTwoController {

    @ManagedProperty(value="#{param.country}")
    private String country;

    @ManagedProperty(value="#{param.province}")
    private String province;

    public void setCountry(String country) {
        this.country = country;
    }

    public void setProvince(String province) {
        this.province = province;
    }

    public void setCity(String city) {
        this.city = city;
    }
}

P.S。我没有发布PhaseOneController.java的代码，因为我不确定是否需要它。但如果有人想看，我可以发布。

我如何将值从一个JSF传递到另一个JSF，同时两者都由单独的Request scoped托管bean支持

0 个答案: