我在通过
AJAX提交的p：dialog组件中有一个表单.对话框中的表单是通过一个ui：包含另一个.xhtml,只包含表单及其组件(不,我不是嵌套表单;对话框本身不是任何形式).包含页面的辅助bean是’ViewScoped’.
MOST的功能很好：
>成功验证后,表单将执行save方法;成功保存后,对话框关闭;打开后续记录会显示数据库中的正确记录信息.
>如果验证失败,提交的值将保持不变,对话框将保持打开状态并显示验证错误,修复无效字段并在成功保存时重新提交结果.
当p：commandButton调用的操作失败时,会出现问题.如果失败,对话框保持打开状态,并通过h：消息向用户显示“保存更改错误”;此外,提交的值仍然存在于输入字段中.当表单保持打开时,这很好(甚至是期望的) – 但是在关闭对话框并重新打开它时,提交的值仍然在文本字段中.这很糟糕,因为它给用户留下了保存成功的印象(因为对话框更新,h：messages组件现在是空白的).
到目前为止,我已经尝试了以下方法,其中没有一个解决了这个问题：
> 1.1)在打开的对话框中将包含表单的支持bean设置为bean的新实例.
> 1.2)由于bean现在是一个新实例,我还使用数据bean中的详细信息重新填充地址对象.
> 2.1)禁用对话框上的关闭按钮,并添加一个p：commandButton“取消”按钮,其中包含p：resetInput组件
它关闭对话框/重置表单. (对话框关闭,但已提交
形式中的值持续存在).
> 2.2)从这个p：commandButton调用一个方法,删除包含表单的支持bean的RequestMap.
> 2.3)尝试将按钮设置为immediate = true和immediate = false.
> 2.4)尝试使用设置为process = @ this的按钮,我用来关闭表单的类似策略以确保它将具有新的字段
重新开放.
您可以考虑将支持bean设置为新实例,并重新填充地址对象,我会看到一个新的形式,但是NOPE.
以下是一些来源：
mainform.xhtml的部分
<p:dialog id="dlgAddress"
header="Address Edit"
widgetVar="dialogAddress"
dynamic="true"
modal="false"
closable="false"
resizable="false"
styleClass="dlgAddress"
visible="#{addressform.showDlgAddress}">
<ui:include src="addressform.xhtml"/>
</p:dialog>
addressform.xhtml
<h:form id="fDlgAddress">
<div id="addresses-container">
<h:messages id="msgDlgAddress" errorClass="errormsg" infoClass="infomsg1" layout="table"/>
<h:panelGrid columns="1"
styleClass="pgAddresses"
rendered="#{!addressform.address.exists}">
<h:outputText value="No active #{addressform.address.atypCode} address found."
styleClass="record-not-exists"/>
<h:outputText value="Use the form below to create one."/>
</h:panelGrid>
<p:panelGrid columns="2"
styleClass="pgDlgForm pgAddresses">
<h:outputLabel value="Address Type"/>
<h:inputText id="atypCode1"
value="#{addressform.address.atypCode}"
disabled="true"
rendered="#{addressform.address.exists}"/>
<h:selectOneMenu id="atypCode2"
value="#{addressform.address.atypCode}"
rendered="#{!addressform.address.exists}">
<f:selectItems value="#{addressform.atypCodeList}"
var="atyp"
itemValue="#{atyp}"
itemLabel="#{atyp}"/>
</h:selectOneMenu>
<h:outputLabel value="Street 1"
for="street1"/>
<h:inputText id="street1"
value="#{addressform.address.addressLine1}"/>
<h:outputLabel value="Street 2"
for="street2"/>
<h:inputText id="street2"
value="#{addressform.address.addressLine2}"/>
<h:outputLabel value="Street 3"
for="street3"/>
<h:inputText id="street3"
value="#{addressform.address.addressLine3}"/>
<h:outputLabel value="Street 4"
for="street4"/>
<h:inputText id="street4"
value="#{addressform.address.addressLine4}"/>
<h:outputLabel value="City"
for="city"/>
<h:inputText id="city"
value="#{addressform.address.city}"
required="true"
requiredMessage="Please enter a city."/>
<h:outputLabel value="State"
for="statCode"/>
<h:selectOneMenu id="statCode"
value="#{addressform.address.stateCode}">
<f:selectItem itemLabel="Select State/Province"
itemValue=""/>
<f:selectItems value="#{states.statesList}"
var="stat"
itemValue="#{stat.statCode}"
itemLabel="#{stat.statDesc}"/>
</h:selectOneMenu>
<h:outputLabel value="Zip Code"
for="zipCode"/>
<h:inputText id="zipCode"
value="#{addressform.address.zip}"/>
<h:outputLabel value="Country"
for="natnCode"/>
<h:selectOneMenu id="natnCode"
value="#{addressform.address.nationCode}"
required="true"
requiredMessage="Please choose a nation.">
<f:selectItem itemLabel="Select Country"
itemValue=""/>
<f:selectItems value="#{nations.nationsList}"
var="natn"
itemValue="#{natn.natnCode}"
itemLabel="#{natn.natnDesc}"/>
</h:selectOneMenu>
<h:outputLabel value="From Date"
for="fromDate"/>
<p:calendar id="fromDate"
value="#{addressform.address.fromDate}"
showButtonPanel="true"/>
<h:outputLabel value="To Date"
for="toDate"/>
<p:calendar id="toDate"
value="#{addressform.address.toDate}"
showButtonPanel="true"/>
<h:outputLabel value="Inactivate"
for="inactivateAddress"
rendered="#{addressform.address.exists}"/>
<h:selectBooleanCheckBox id="inactivateAddress"
value="#{addressform.address.inactivate}"
rendered="#{addressform.address.exists}"/>
<h:outputLabel value="Delete"
for="deleteAddress"
rendered="#{addressform.address.exists}"/>
<h:selectBooleanCheckBox id="deleteAddress"
value="#{addressform.address.delete}"
rendered="#{addressform.address.exists}"/>
</p:panelGrid>
</div>
<div class="button-container">
<p:commandButton value="Save Changes"
action="#{addressform.save}"
type="submit"
ajax="true"
process="@form"
update="@form"/>
<p:commandButton value="Cancel"
process="@this"
onclick="dialogAddress.hide();">
<p:resetInput target="fDlgAddress"/>
</p:commandButton>
</div>
</h:form>
Recorddetailsform(用于调用地址对话框的表单的辅助bean)
public void showDlgAddress(){
FacesContext ctx = FacesContext.getCurrentInstance();
ELResolver resolver = ctx.getApplication().getELResolver();
RecordDetails recordDetails = (RecordDetails) resolver.getValue(ctx.getELContext(),null,"recordDetails");
//Set addressform backing bean to new instance and load address into it from recordDetails
resolver.setValue(ctx.getELContext(),"addressform",new Addressform());
Addressform addressform = (Addressform) resolver.getValue(ctx.getELContext(),"addressform");
addressform.setAddress(recordDetails.getAddress());
}
Addressform(地址表的辅助bean)
public void save() {
FacesContext ctx = FacesContext.getCurrentInstance();
RequestContext rctx = RequestContext.getCurrentInstance();
ELResolver resolver = ctx.getApplication().getELResolver();
Records records = (Records) resolver.getValue(ctx.getELContext(),"records");
RecordDetails recordDetails = (RecordDetails) resolver.getValue(ctx.getELContext(),"recordDetails");
Mainform mainform = (Mainform) resolver.getValue(ctx.getELContext(),"mainform");
Person person = (Person) resolver.getValue(ctx.getELContext(),"person");
//Pretty lengthy sql stuff here. Commented out. Just wanted to display the display logic below for the dialog.
if (errorMsg != null) {//If errorMsg is not null,then error occurred.
showDlgAddress = true;//Ensures address dialog remains open in event of action error.
queueErrorMessage(errorMsg);
rctx.update("dlgAddress");
return;//break out of method on error.
} else {
showDlgAddress = false;
rctx.update("dlgAddress");
}
//If everything saves without error,repopulate address and update recordDetails dialog.
recordDetails.populateAddress(records.getSelectedRecord());
mainform.updateDlgRecordDetails();
}
其他信息：
> JSF2
> Primefaces 3.5
> Tomcat 6.0
> Netbeans
解决方法
试试这个：
>将对话框放在表单中(dialogInputForm)
>添加属性update =“：dialogInputForm”
>将resetInput标记嵌套在打开对话框的按钮中,并将目标指定为刚刚创建的表单
commandButton：
<p:commandButton process="@this" actionListener="#{bean.prepare}" update=":dialogInputForm" oncomplete="thirdPartyDialog.show()" value="Open Input Dialog" >
<p:resetInput target=":dialogInputForm" />
</p:commandButton>
以及包含对话的形式
<h:form id="dialogInputForm" > ... your dialog ... </h:form>
