PrimeFaces对话框仅在第一次出现时进行验证
JSF 2.2，PrimeFaces 3.5。
home.xhtml包含一个带有嵌套dataTables和添加/编辑/删除按钮的tabview。每个按钮都应该调用带有表单和提交/取消按钮的对话框。
问题是验证只处理一次（见截图），如果按“添加”/“取消”，对话框只会隐藏，不会进行验证。如果我再次尝试重新打开它并输入值并点击“添加” - 它只是跳过验证并呈现响应。所以，基本上，它只是提出初始请求（如果我猜对了）。
控制台输出，用于按“添加”，空值为3次。第一次点击已经按照我想要的方式处理，但接下来只是隐藏对话而没有任何验证：
2014-01-24 17:56:09,590 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RESTORE_VIEW 1
2014-01-24 17:56:09,628 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: APPLY_REQUEST_VALUES 2
2014-01-24 17:56:09,633 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: PROCESS_VALIDATIONS 3
2014-01-24 17:56:09,645 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RENDER_RESPONSE 6
2014-01-24 17:56:13,127 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RESTORE_VIEW 1
2014-01-24 17:56:13,128 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RENDER_RESPONSE 6
2014-01-24 17:56:16,557 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RESTORE_VIEW 1
2014-01-24 17:56:16,558 DEBUG [RequestLoggingPhaseListener] Entering JSF Phase: RENDER_RESPONSE 6
home.xhtml（对话框位于页面底部）：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:component xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ex="http://java.sun.com/jsf/composite/nsobchuk">
<h:head>
<title>Home page</title>
<link rel="stylesheet" href="../css/style.css"/>
</h:head>
<h:body>
<h:form id="logout" class="logout" >
<h:commandButton action="#{loginBean.logout()}" value="logout"/>
</h:form>
<p:tabView id="tab" orientation="left">
<p:tab title="Users">
<h:form id="form1">
<h:panelGrid columns="9">
<p:commandButton type="button" value="Add" onclick="dlg1.show()" />
<p:commandButton id="editUser" type="button" value="Edit" onclick="dlg2.show()" disabled="#{homeBean.selectedUser == null}"/>
<p:dialog id="editUserDialogerDialog" widgetVar="dlg2" header="Sorry" >
<h:outputText value="I didn't have enogh time to finish this functionality. Feel free to test other buttons."/>
</p:dialog>
<p:commandButton id="deleteUser" type="button" onclick="confirmation1.show()" value="Delete" disabled="#{homeBean.selectedUser == null}"/>
<p:confirmDialog message="Are you sure you want to delete user?" header="Confirmation"
severity="alert" widgetVar="confirmation1">
<p:commandButton value="Yes" update=":tab:users" process="@this" styleClass="ui-confirmdialog-yes" icon="ui-icon-check"
oncomplete="confirmation1.hide()" action="#{homeBean.deleteUser}" />
<p:commandButton value="No" onclick="confirmation1.hide()" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close"/>
</p:confirmDialog>
</h:panelGrid>
</h:form>
<p:dataTable id="users" var="user" value="#{homeBean.users}"
scrollable="true" scrollHeight="250" selectionMode="single"
selection="#{homeBean.selectedUser}" rowKey="#{user.userId}"
sortMode="single">
<p:ajax event="rowSelect" listener="#{homeBean.onUserRowSelect}" update=":tab:form1:deleteUser, :tab:form1:editUser"/>
<p:ajax event="rowUnselect" listener="#{homeBean.onUserRowUnselect}" update=":tab:form1:deleteUser, :tab:form1:editUser"/>
<p:column headerText="Login" sortBy="#{user.login}">
<h:outputText value="#{user.login}"/>
</p:column>
<p:column headerText="Password" sortBy="#{user.password}">
<h:outputText value="#{user.password}"/>
</p:column>
<p:column headerText="Role" sortBy="#{user.role}">
<h:outputText value="#{user.role}"/>
</p:column>
<p:column headerText="Name" sortBy="#{user.firstName}">
<h:outputText value="#{user.firstName}"/>
</p:column>
<p:column headerText="Surname" sortBy="#{user.lastName}">
<h:outputText value="#{user.lastName}"/>
</p:column>
</p:dataTable>
<ex:exporter target=":tab:users" fileName="Users"/>
</p:tab>
<p:tab title="Computers">
<h:form id="form2">
<h:panelGrid columns="9">
<p:commandButton type="button" value="Add" onclick="dlg3.show()"/>
<p:commandButton id="editComp" type="button" value="Edit" onclick="dlg4.show()" disabled="#{homeBean.selectedComputer == null}"/>
<p:dialog id="editCompDialog" widgetVar="dlg4" header="Sorry" >
<h:outputText value="I didn't have enogh time to finish this functionality. Feel free to test other buttons."/>
</p:dialog>
<p:commandButton id="deleteComp" type="button" onclick="confirmation2.show()" value="Delete" disabled="#{homeBean.selectedComputer == null}"/>
<p:confirmDialog message="Are you sure you want to delete this computer?" header="Confirmation"
severity="alert" widgetVar="confirmation2">
<p:commandButton value="Yes" update=":tab:computers" process="@this" styleClass="ui-confirmdialog-yes" icon="ui-icon-check"
oncomplete="confirmation2.hide()" action="#{homeBean.deleteComputer}"/>
<p:commandButton value="No" onclick="confirmation2.hide()" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close"/>
</p:confirmDialog>
</h:panelGrid>
</h:form>
<p:dataTable id="computers" var="computer" value="#{homeBean.computers}"
scrollable="true" scrollHeight="250" selectionMode="single"
selection="#{homeBean.selectedComputer}" rowKey="#{computer.computerId}"
sortMode="single" >
<p:ajax event="rowSelect" listener="#{homeBean.onCompRowSelect}" update=":tab:form2:editComp, :tab:form2:deleteComp"/>
<p:column headerText="Login" sortBy="#{computer.login}">
<h:outputText value="#{computer.login}"/>
</p:column>
<p:column headerText="Password" sortBy="#{computer.password}">
<h:outputText value="#{computer.password}"/>
</p:column>
<p:column headerText="Name" sortBy="#{computer.computerName}" >
<h:outputText value="#{computer.computerName}"/>
</p:column>
<p:column headerText="IP address" sortBy="#{computer.ipAddress}">
<h:outputText value="#{computer.ipAddress}"/>
</p:column>
</p:dataTable>
<ex:exporter target=":tab:computers" fileName="Computers"/>
</p:tab>
<p:tab title="Applications">
<h:form id="form3">
<h:panelGrid columns="9">
<p:commandButton type="button" value="Add" onclick="dlg5.show()"/>
<p:commandButton id="editApp" type="button" value="Edit" onclick="dlg6.show()" disabled="#{homeBean.selectedApplication == null}"/>
<p:dialog id="editAppDialog" widgetVar="dlg6" header="Sorry" >
<h:outputText value="I didn't have enogh time to finish this functionality. Feel free to test other buttons."/>
</p:dialog>
<p:commandButton id="deleteApp" type="button" onclick="confirmation3.show()" value="Delete" disabled="#{homeBean.selectedApplication == null}"/>
<p:confirmDialog message="Are you sure you want to delete this application?" header="Confirmation"
severity="alert" widgetVar="confirmation3">
<p:commandButton value="Yes" update=":tab:applications" process="@this" styleClass="ui-confirmdialog-yes" icon="ui-icon-check"
oncomplete="confirmation3.hide()" action="#{homeBean.deleteApplication}"/>
<p:commandButton value="No" onclick="confirmation3.hide()" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close"/>
</p:confirmDialog>
</h:panelGrid>
</h:form>
<p:dataTable id="applications" var="app" value="#{homeBean.applications}"
scrollable="true" scrollHeight="250" selectionMode="single"
selection="#{homeBean.selectedApplication}" rowKey="#{app.appId}"
sortMode="single" >
<p:ajax event="rowSelect" listener="#{homeBean.onAppRowSelect}" update=":tab:form3:editApp, :tab:form3:deleteApp"/>
<p:column headerText="Name" sortBy="#{app.appName}">
<h:outputText value="#{app.appName}"/>
</p:column>
<p:column headerText="Vendor" sortBy="#{app.vendorName}" >
<h:outputText value="#{app.vendorName}"/>
</p:column>
<p:column headerText="License required" sortBy="#{app.licenseRequired}">
<h:outputText value="#{app.licenseRequired}"/>
</p:column>
</p:dataTable>
<ex:exporter target=":tab:applications" fileName="Applications" />
</p:tab>
</p:tabView>
<p:dialog id="addUserDialog" header="Add Dialog" modal="true" closable="false"
widgetVar="dlg1" width="620" >
<h:form id="dlg1form">
<h:panelGrid columns="3">
<h:outputLabel for="login" value="Login: "/>
<p:inputText id="login" required="true"
label="Login: " maxlength="20" >
</p:inputText>
<p:message for="login" />
<h:outputLabel for="password" value="Password: "/>
<p:password id="password" required="true"
feedback="true" label="Password: " maxlength="32"/>
<p:message for="password" />
<h:outputLabel for="firstName" value="First Name: "/>
<p:inputText id="firstName"
label="First Name: " maxlength="20"/>
<p:message for="firstName"/>
<h:outputLabel for="lastName" value="Last Name: "/>
<p:inputText id="lastName"
label="Last Name: " maxlength="20"/>
<p:message for="lastName"/>
<h:outputLabel for="role" value="Role: "/>
<p:selectOneMenu id="role" required="true" style="width: 80px;" >
<f:selectItem itemLabel="user" itemValue="ROLE_USER" />
<f:selectItem itemLabel="admin" itemValue="ROLE_ADMIN" />
</p:selectOneMenu>
<p:message for="role"/>
</h:panelGrid>
<p:commandButton value="Cancel" onclick="dlg1.hide()" update="@form">
<p:resetInput target="addUserDialog" />
</p:commandButton>
<p:commandButton value="Add" update="@form" immediate="false"
oncomplete="if (args && !args.validationFailed) dlg1.hide()" />
</h:form>
</p:dialog>
<p:dialog id="addCompDialog" header="Add Dialog" draggable="true" closable="false" modal="true"
widgetVar="dlg3" width="600">
<h:form id="dlg3form">
<h:panelGrid columns="3">
<h:outputLabel for="pclogin" value="Login: "/>
<p:inputText id="pclogin" required="true"
label="Login: " maxlength="20">
</p:inputText>
<p:message for="pclogin"/>
<h:outputLabel for="pcpassword" value="Password: "/>
<p:password id="pcpassword" required="true"
feedback="true" label="Password: " maxlength="32"/>
<p:message for="pcpassword" />
<h:outputLabel for="compName" value="Computer Name: "/>
<p:inputText id="compName" required="true"
label="Computer Name: " maxlength="20"/>
<p:message for="compName"/>
<h:outputLabel for="ipaddress" value="IP address: "/>
<p:inputText id="ipaddress" required="true"
label="IP address: " maxlength="20"/>
<p:message for="ipaddress"/>
</h:panelGrid>
<p:commandButton value="Cancel" immediate="true" onclick="dlg3.hide()" process="@this" update="@form">
<p:resetInput target="addCompDialog" />
</p:commandButton>
<p:commandButton value="Add" update="@form"
oncomplete="if (args && !args.validationFailed) dlg3.hide()" />
</h:form>
</p:dialog>
<p:dialog id="addAppDialog" header="Add Dialog" draggable="true" closable="false" modal="true"
widgetVar="dlg5" width="600" >
<h:form id="dlg5form">
<h:panelGrid columns="3">
<h:outputLabel for="appName" value="Name: "/>
<p:inputText id="appName" required="true"
label="Name: "/>
<p:message for="appName"/>
<h:outputLabel for="vendorName" value="Vendor: "/>
<p:inputText id="vendorName"
label="Vendor: " required="true" />
<p:message for="vendorName"/>
<h:outputLabel for="appLicense" value="Requires license: "/>
<p:selectOneMenu id="appLicense" required="true" style="width: 80px;" >
<f:selectItem itemLabel="True" itemValue="#{true}" />
<f:selectItem itemLabel="False" itemValue="#{false}" />
</p:selectOneMenu>
<p:message for="appLicense"/>
</h:panelGrid>
<p:commandButton value="Cancel" immediate="true" onclick="dlg5.hide()" update="@form" process="@this">
<p:resetInput target="addAppDialog" />
</p:commandButton>
<p:commandButton value="Add" update="@form"
oncomplete="if (args && !args.validationFailed) dlg5.hide()"/>
</h:form>
</p:dialog>
</h:body>
</ui:component>
HomeBean：
@Component
@Scope("session")
public class HomeBean extends BaseBean {
private static final String editUserBtn = "tab:form1:editUser";
private static final String deleteUserBtn = "tab:form1:deleteUser";
private static final String editCompBtn = "tab:form2:editComp";
private static final String deleteCompBtn = "tab:form2:deleteComp";
private static final String editAppBtn = "tab:form3:editApp";
private static final String deleteAppBtn = "tab:form3:deleteApp";
@Autowired
private HibernateDBManager hibernateDBManager;
private List<User> users;
private List<Computer> computers;
private List<Application> applications;
private User selectedUser, newUser;
private Computer selectedComputer, newComputer;
private Application selectedApplication, newApplication;
private RequestContext rc;
@Override
public void init() {
setUsers(hibernateDBManager.getAllUsers());
setComputers(hibernateDBManager.getAllComputers());
setApplications(hibernateDBManager.getAllApplications());
newUser = new User();
newComputer = new Computer();
newApplication = new Application();
rc = RequestContext.getCurrentInstance();
}
public void addUser() throws NoSuchAlgorithmException {
if (newUser != null && newUser.getPassword() != null) {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(newUser.getPassword().getBytes());
String hash = new BigInteger(1, md.digest()).toString(16);
newUser.setPassword(hash);
if (hibernateDBManager.insertUser(newUser)) {
users.add(newUser);
}
}
}
public void editUser() {
if (selectedUser != null) {
hibernateDBManager.updateUser(selectedUser);
users.set(users.indexOf(selectedUser), selectedUser);
selectedUser = null;
rc.update(deleteUserBtn);
rc.update(editUserBtn);
}
}
public void deleteUser() throws IOException {
if (selectedUser != null) {
if (hibernateDBManager.deleteUserById(selectedUser.getUserId()) > 0) {
users.remove(selectedUser);
selectedUser = null;
rc.update(deleteUserBtn);
rc.update(editUserBtn);
}
}
}
public void addComputer() {
if (newComputer != null && hibernateDBManager.insertComputer(newComputer)) {
computers.add(newComputer);
}
}
public void deleteComputer() {
if (selectedComputer != null) {
if (hibernateDBManager.deleteComputerById(selectedComputer.getComputerId()) > 0) {
computers.remove(selectedComputer);
selectedComputer = null;
rc.update(editCompBtn);
rc.update(deleteCompBtn);
}
}
}
public void addApplication() {
if (newApplication != null && hibernateDBManager.insertApplication(newApplication)) {
applications.add(newApplication);
}
}
public void deleteApplication() {
if (selectedApplication != null) {
if (hibernateDBManager.deleteApplicationById(selectedApplication.getAppId()) > 0) {
applications.remove(selectedApplication);
selectedApplication = null;
rc.update(editAppBtn);
rc.update(deleteAppBtn);
}
}
}
public void onUserRowSelect(SelectEvent event) {
setSelectedUser((User) event.getObject());
}
public void onUserRowUnselect(UnselectEvent event) {
setSelectedUser(null);
}
public void onCompRowSelect(SelectEvent event) {
setSelectedComputer((Computer) event.getObject());
}
public void onAppRowSelect(SelectEvent event) {
setSelectedApplication((Application) event.getObject());
}
//Getters etc.
}
每次用户按“添加”时，我都要保持对话框的打开和验证，而不仅仅是一次。任何人都可以帮助我用我的代码实现这一点或指向我的解决方案吗？ （类似的回答问题，评级-1对我没有帮助）每个答案都非常感谢。
谢谢大家。
2 个答案:
答案 0 :(得分：3)
好的，伙计们。我自己找到了解决方案。我做的工作是在一个表单中给一个panelGrid元素一个id更新panelGrid而不是整个表单。
因此，“添加”按钮已更改为：
<p:commandButton value="Add"
update=":dlg1form:dt, :tab:users"
action="#{homeBean.addUser}"
oncomplete="if (!args.validationFailed) dlg1.hide()" />
和panelGrid，其中包含输入字段：
<h:form id="dlg1form">
<h:panelGrid columns="3" id="dt">
这有助于我在每次点击时验证输入字段，而不仅仅是一次。
真诚地希望这会对某人有所帮助。
干杯！
答案 1 :(得分：1)
我遇到了同样的问题：在update="@form"内部update="yourFormName"或<p:commandButton>阻止了在发生验证错误时保留对话框。
这可能是因为包含update form命令会重新生成整个对话框，但不会触发dialogWidgetVar.show() js命令。
我通过在对话框中嵌套<p:fragment autoUpdate="true">来解决了这个问题。然后，您可以删除触发commandButton中的update关键字，因为片段中的每个组件都将更新。结果是，当客户端收到Ajax响应时，不会替换<p:dialog>和</p:dialog>标记。我的工作代码如下：
<h:form id="locations_editer_creer">
<p:dialog id="location_dlg" widgetVar="locationDlg" header="#{msgs.LocationCreerNouvelle}" width="600" dynamic="false" closeOnEscape="true"
minimizable="true" maximizable="true" modal="true" >
<p:fragment autoUpdate="true">
your form inputs e.g. <p:inputText .../>
<p:commandButton id="OK" value="OK"
actionListener="#{locationsControleur.confirmer()}"
oncomplete="traiteRequeteCreationLoc(xhr, status, args)"
styleClass="ui-confirmdialog-yes" icon="ui-icon-check"/>
</p:fragment>
</p:dialog>
</h:form>
这项技术在K. Siva Prasad Reddy（Packt Publishing）的优秀PrimeFaces Beginner's Guide书中有所描述，p。 54：使用Fragment组件进行部分处理和渲染。
希望这可以帮助他人。
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