我有一个包含几个字段的 JSF 页面。我关注了这个 tutorial来自 BalusC，一切都很好。然后我为它添加了 RichFaces 支持，它工作正常。我可以看到弹出窗口等工作。
现在我想要做的是，一旦一个人被注册，我想在弹出窗口中显示名称(这也很好，我可以在弹出窗口中看到)。然后我希望能够在弹出窗口中更改该名称并将其反射(reflect)在父级中，但我不知道如何做到这一点。请看一看。
XHTML 页面
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich">
<h:head>
<title>Registration</title>
</h:head>
<h:body>
<h:form>
<h:panelGrid columns="3">
<h:outputLabel for="username">Username</h:outputLabel>
<h:inputText id="username" value="#{register.user.username}"
required="true">
<f:ajax event="blur" render="usernameMessage" />
</h:inputText>
<h:message id="usernameMessage" for="username" />
<h:outputLabel for="password">Password</h:outputLabel>
<h:inputSecret id="password" value="#{register.user.password}"
required="true" redisplay="true">
<f:ajax event="blur" render="passwordMessage" />
</h:inputSecret>
<h:message id="passwordMessage" for="password" />
<h:outputLabel for="email">Email</h:outputLabel>
<h:inputText id="email" value="#{register.user.email}"
required="true">
<f:ajax event="blur" render="emailMessage" />
</h:inputText>
<h:message id="emailMessage" for="email" />
<h:outputLabel for="birthdate">Birthdate (yyyy-MM-dd)</h:outputLabel>
<h:inputText id="birthdate" value="#{register.user.birthdate}">
<f:convertDateTime pattern="yyyy-MM-dd" />
<f:ajax event="blur" render="birthdateMessage" />
</h:inputText>
<h:message id="birthdateMessage" for="birthdate" />
<h:panelGroup />
<h:commandButton value="Register" action="#{register.submit}">
<f:ajax execute="@form" render="@form" />
</h:commandButton>
<h:commandButton value="Edit Name in Popup">
<rich:componentControl target="popup" operation="show" />
</h:commandButton>
<h:messages globalOnly="true" layout="table" />
</h:panelGrid>
<rich:popupPanel id="popup" modal="true" resizeable="true"
onmaskclick="#{rich:component('popup')}.hide()">
<f:facet name="header">
<h:outputText value="Simple popup panel" />
</f:facet>
<f:facet name="controls">
<h:outputLink value="#"
onclick="#{rich:component('popup')}.hide(); return false;">
X
</h:outputLink>
</f:facet>
<h:panelGrid columns="3">
<h:outputLabel for="username2">Username</h:outputLabel>
<h:inputText id="username2" value="#{register.user.username}"
required="true">
</h:inputText>
<h:commandButton value="Register" action="#{register.update}">
</h:commandButton>
</h:panelGrid>
</rich:popupPanel>
</h:form>
</h:body>
</html>
Java类
package com.example;
import java.io.Serializable;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
@ManagedBean
@ViewScoped
public class Register implements Serializable {
private static final long serialVersionUID = 1L;
private User user;
public Register() {
user = new User();
}
public void submit() {
FacesMessage message = new FacesMessage("Registration succesful!");
FacesContext.getCurrentInstance().addMessage(null, message);
}
public void update() {
FacesMessage message = new FacesMessage("Update succesful!");
FacesContext.getCurrentInstance().addMessage(null, message);
}
public User getUser() {
return user;
}
}
用户类
package com.example;
import java.io.Serializable;
import java.util.Date;
public class User implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
private String username;
private String password;
private String email;
private Date birthdate;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Date getBirthdate() {
return birthdate;
}
public void setBirthdate(Date birthdate) {
this.birthdate = birthdate;
}
}
在 Arjan Tijms 的建议之后更新了一点
<h:form id="form2">
<rich:popupPanel id="popup" modal="true" resizeable="true" onmaskclick="#{rich:component('popup')}.hide()">
<f:facet name="header">
<h:outputText value="Simple popup panel" />
</f:facet>
<f:facet name="controls">
<h:outputLink value="#" onclick="#{rich:component('popup')}.hide(); return false;">
X
</h:outputLink>
</f:facet>
<h:panelGrid columns="3">
<h:outputLabel for="username2">Username</h:outputLabel>
<h:inputText id="username2" value="#{register.user.username}" required="true"></h:inputText>
<h:commandButton value="Register" action="#{register.update}">
<f:ajax execute="@form" render=":form" />
</h:commandButton>
</h:panelGrid>
</rich:popupPanel>
</h:form>
最佳答案
只需移动 rich:popupPanel脱离主要形式，并赋予它自己的形式。如果您随后提交对话框中的表单，则整个页面将重新呈现。
由于支持 bean 是 View 范围的，因此将保留以前的用户数据，并且只会使用您在对话框中输入的任何内容更新用户名。
此外，您可以通过 AJAX 提交表单，给主表单一个 ID 并重新呈现它。
例如。
<rich:popupPanel id="popup" modal="true" resizeable="true" onmaskclick="#{rich:component('popup')}.hide()">
<f:facet name="header">Simple popup panel</f:facet>
<h:form id="form2">
<h:outputLabel for="username2" value="Username"/>
<h:inputText id="username2" value="#{register.user.username}" required="true"/>
<a4j:commandButton value="do" action="#{register.update}" render="form" oncomplete="#{rich:component('popup')}.hide()"/>
</h:form>
</rich:popupPanel>
我用的是 A4J
commandButton这里有一个方便的oncomplete属性。你可以用 onevent 做类似的事情。属性在标准的 ajax 标签上，但使用的代码稍微多一些。请注意，如果主表单存在验证错误，则没有任何对策无法从其他表单更新(如果遇到这种情况，最好针对该特定情况打开一个新问题)。
关于jsf-2 - 如何从richfaces弹出窗口刷新父jsf页面，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7133393/