JSF表单过帐空

Question

我有一个具有三种不同类型字段的实体类，一个用于string值，一个用于integer值，一个用于date值。

@Column(name = "EVDE_VALUE_STR")
private String evdeValueStr;

@Column(name = "EVDE_VALUE_INT")
private Integer evdeValueInt;

@Column(name = "EVDE_VALUE_DATE")
@Temporal(TemporalType.TIMESTAMP)
private Date evdeValueDate;

我创建了一个JSF表单，以便从我的实体创建新实例。如您所见，我创建了不同类型 字段，这取决于我希望Entity类存储的数据类型。

    <h:form>
    <ui:repeat value="#{mainWorkerMB.showAvailableEventDetailTypes()}" var="eventDetail">
    <tr>
    <td>
    <h:outputText value="#{eventDetail.edtyId.edtyName}"></h:outputText>
    </td>

    <td>

    <h:inputText id="str_tst" rendered="#{eventDetail.edtyId.edtyDetailType == 'STR'}"
     styleClass="form-control" value="#{eventDetail.evdeValueStr}" >
    </h:inputText>

    <h:inputText id="int_tst" rendered="#{eventDetail.edtyId.edtyDetailType == 'INT'}"
    styleClass="form-control number_mask" value="#{eventDetail.evdeValueInt}" >
    </h:inputText>

    <h:inputText id="dat_tst" rendered="#{eventDetail.edtyId.edtyDetailType == 'DAT'}"
    styleClass="form-control datepicker_base" value="#{eventDetail.evdeValueDate}">
    <f:convertDateTime pattern="yyyy.mm.dd" />
    </h:inputText>

    </td>
    </tr>
    </ui:repeat>
    <p:commandButton styleClass="btn btn-primary" actionListener="#{mainWorkerMB.createNewEvent()}" value="Save" />
    </h:form>

这是jsf生成的HTML：

<table class="table table-bordered table-hover"> 
<tr>
<td>
dummy str
</td>                                                   
<td>
<input id="j_idt57:j_idt64:0:str_tst" type="text" name="j_idt57:j_idt64:0:str_tst" class="form-control" />
</td>                                                   
</tr>
<tr>
<td>
dummy int
</td>                                                   
<td><input id="j_idt57:j_idt64:1:int_tst" type="text" name="j_idt57:j_idt64:1:int_tst" class="form-control" />
</td>
</tr>
<tr>
<td>dummy dat
</td>                                                   
<td><input id="j_idt57:j_idt64:2:dat_tst" type="text" name="j_idt57:j_idt64:2:dat_tst" class="form-control" />
</td>                                                   
</tr>
</table>

所以我看到所有类型的字段都是正确生成的。

public List<BtrEventDetail> showAvailableEventDetailTypes() {
        log.debug("invoked..");
        List<BtrDEventDetailType> detailTypeList = sessionBucketMB.getAvailableEventDetailList();
        detailList.clear();
        if (detailTypeList != null) {
            for (BtrDEventDetailType detTyInstance : detailTypeList) {

                BtrEventDetail newDetail = new BtrEventDetail();
                log.debug("setting detail instance detTyInstance: " + detTyInstance.getEdtyDetailType());
                newDetail.setEdtyId(detTyInstance);
                detailList.add(newDetail);
            }
        }
        return detailList;
    }

public void createNewEvent() {
        log.debug("invoked...");
        try {
            newEvent = new NewEvenDTO();

            for (BtrEventDetail detail : detailList) {

                log.debug("detail: " + detail.getEdtyId().getEdtyName() + " value: " + detail.getEvdeValueStr());

            }

..

..

单击Save按钮后，我在WebConsole的post中看到了以下内容：

javax.faces.partial.ajax    true
javax.faces.source  j_idt57:j_idt71
javax.faces.partial.execute @all
j_idt57:j_idt71 j_idt57:j_idt71
j_idt57 j_idt57
j_idt57:j_idt60 18
j_idt57:j_idt64:0:str_tst   zzzz
j_idt57:j_idt64:1:int_tst   111
j_idt57:j_idt64:2:dat_tst   2017.11.11
javax.faces.ViewState   -2967681892162587485:-6016297341844807895

这是我的后盾：

2017-09-12 09:13:19 createNewEvent DEBUG MainWorkerMB:277 - invoked...
2017-09-12 09:13:19 createNewEvent DEBUG MainWorkerMB:283 - detail: dummy str value: zzzz
2017-09-12 09:13:19 createNewEvent DEBUG MainWorkerMB:283 - detail: dummy int value: null
2017-09-12 09:13:19 createNewEvent DEBUG MainWorkerMB:283 - detail: dummy dat value: null

这意味着只有我的string字段发布数据。所有其他字段的值都为空。

更新！

在我的backing bean中，我之前只记录了StringValue。所以没有任何错误，丢失的值只是在我的backing bean日志中看不到。

        log.debug("detail: " + detail.getEdtyId().getEdtyName() + " value: " + detail.getEvdeValueStr());

在我添加了这两行之后，我的值显示在backing bean日志中：

    log.debug("detail: " + detail.getEdtyId().getEdtyName() + " value: " + detail.getEvdeValueInt());
    log.debug("detail: " + detail.getEdtyId().getEdtyName() + " value: " + detail.getEvdeValueDate());

Answer 1

检查EventDetail.EdtyId.EdtyDetailType。可能无法呈现。不会同时呈现所有三个输入元素。