Question

我使用JSF 2.2和Primefaces 6.1。我在第一次提交表单时有textarea值的问题。我对一种表单使用多个子视图。问题是当在文本区域中键入某些内容时，在第一个表单提交后，该值将消失并且不更新数据模型。但是，当再次键入并触发提交时，就会显示该值。 textarea在dataTable的subTable内部。

我尝试将valueChangeListener与ajax一起使用。这可行，但是当单击快速提交时，值没有更新。我只尝试了ajax，但是结果是一样的。我尝试使用onchange =“ submit（）”的valueChangeLister，但这不起作用。尝试过的解决方案Primefaces valueChangeListener or <p:ajax listener not firing for p:selectOneMenu，但这不起作用

文本区域代码

<h:form id="reuestForm">
                <div class="form-group">
                <p:dataTable id="edScopeTable" styleClass="form-group dataTable-space"
                             value="#{requestBean.employeeDealerTabController.getEdScopeCategories()}"
                             var="category">
                <p:columnGroup type="header">
                    <p:row>
                        <p:column headerText="#{i18nMsg.ed_env_scopes_tbl_colScope_header}"/>
                        <p:column headerText="#{i18nMsg.ed_env_scopes_tbl_col_openIdConnect_header}"/>
                        <p:column headerText="#{i18nMsg.ed_env_scopes_tbl_col_reasonNeeded}"/>
                    </p:row>
                </p:columnGroup>
                <p:subTable
                        value="#{requestBean.employeeDealerTabController.getScopeReasonsByCategory(category)}"
                        var="edScope" rendered="#{requestBean.employeeDealerTabController.isCategoryInTable(category)}">
                <p:column styleClass="#{requestBean.employeeDealerTabController.calculateDiff(edScope,'cell-right')} textAlign-center">
                    <p:inputTextarea id="reason"
                                     value="#{edScope.reason}" rows="2"
                                     autoResize="false"
                                     data-disable-type="custom"
                                     styleClass="form-control #{edScope.getDiffValue('reason')}"
                                     rendered="#{edScope.edScopeConst.reasonNeeded}"
                                     label="#{i18nMsg.edScope_request_selectionTable_scope_reasonNeeded} #{edScope.edScopeConst.name}"
                                     disabled="#{requestBean.employeeDealerTabController.disableReasonField()}">
                        <f:attribute name="scope" value="#{edScope}"/>
                        <f:validateBean
                                binding="#{requestBean.validatorContainer.requiredBeanValidator}"/>
                        <p:message for="reason" display="tooltip"/>
                    </p:inputTextarea>

                    <h:outputText
                            rendered="#{not edScope.edScopeConst.reasonNeeded}"
                            value="#{i18nMsg.edScope_request_selectionTable_scope_noReasonNeeded}"/>
                </p:column>
                </p:subTable>
                </p:dataTable>
                </div>
                <div class="text-right">
                    <p:commandButton value="#{(requestBean.request.version eq 1 and requestBean.request.stateDraft) or requestBean.isEdRequestToBePrinted() ? i18nMsg.general_mainButton_send_and_print : i18nMsg.general_mainButton_send}"
                                     id="send"
                                     update="requestForm"
                                     actionListener="#{requestBean.prepareDialog()}"
                                     oncomplete="args.validationFailed ? PF('validationFailedMessageDialog').show() : PF('readyToSendDialog').show(); jQuery(document).scrollTop(0)"
                                     title="#{requestBean.sendButtonDisabled ? i18nMsg.request_sendButtonTooltip : ''}"
                                     styleClass="ui-priority-primary" icon="ui-icon-mail-closed"
                                     disabled="#{requestBean.sendButtonDisabled}" data-disable-type="custom" />

                </div>
            </h:form>

RequestBean

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;


@ManagedBean
@ViewScoped
public class RequestBean extends PageBeanBase implements Serializable {

  private EmployeeDealerTabController employeeDealerTabController;

  @PostConstruct
  public void initialize() {
    employeeDealerTabController = new EmployeeDealerTabController();
  }

  public EmployeeDealerTabController getEmployeeDealerTabController() {
        return employeeDealerTabController;
  }
  public void prepareDialog() {
    // preparation before send and show dialog with confirmation send form
  }

  // rest of method

}

EmployerDealerTabController

public List<EdScopeREason> getScopeReasonsByCategory(int category) {
  if(category == 1) {
    return scopesOidcList;
  } else {
    return scopesIdentityList;
  }
}

EdScopeReason

@Entity
@Table(name = "ED_SCOPE_REASON")
public class EdScopeReason extends InlineDiffBase<EdScopeReason> implements EdScopeConstBearer, Serializable, Comparable<EdScopeReason> {

    private String reason;

    @Basic
    @Column(name = "REASON")
    @NotBlank(groups = RequiredValidationGroup.class, message = "{iamat.validation.general.edScopeReason.notempty}")
    public String getReason() {
        return reason;
    }

    public void setReason(String reason) {
        this.reason = reason;
    }
}

我有setter和getter方法。当我调试时，此值传递给验证器，但未设置为component。我有点困惑为什么不第一次设置此值

编辑

我将jsf ajax添加到textarea输入中，并在commandButton上设置5s延迟。这是一种解决方法，但仍在寻找更好的解决方案。当我使用primefaces ajax时，我不需要延迟，但是对于每个primefaces ajax，我都会显示loader.gif。

<p:inputTextarea id="reason"
                                         ...{requestBean.employeeDealerTabController.disableReasonField()}">
                            <f:attribute name="scope" value="#{edScope}"/>
                            <f:validateBean
                                    binding="#{requestBean.validatorContainer.requiredBeanValidator}"/>
                            <p:message for="reason" display="tooltip"/>
                            <f:ajax />
                        </p:inputTextarea>

....

<p:commandButton value="#{(requestBean.request.version eq 1 and requestBean.request.stateDraft) or requestBean.isEdRequestToBePrinted() ? i18nMsg.general_mainButton_send_and_print : i18nMsg.general_mainButton_send}"
                                     id="send"
                                     update="requestForm"
                                     actionListener="#{requestBean.prepareDialog()}"
                                     oncomplete="args.validationFailed ? PF('validationFailedMessageDialog').show() : PF('readyToSendDialog').show(); jQuery(document).scrollTop(0)"
                                     title="#{requestBean.sendButtonDisabled ? i18nMsg.request_sendButtonTooltip : ''}"
                                     styleClass="ui-priority-primary" icon="ui-icon-mail-closed"
                                     disabled="#{requestBean.sendButtonDisabled}" data-disable-type="custom" delay="5000" />

首次提交时jsf输入表单值消失

0 个答案: