JSF 2动态表单和bean验证JSR 303 [英] JSF 2 dynamic form and bean validation JSR 303
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问题描述
我从带注释的bean开始生成动态表单.使用Hibernate Validator对同一bean进行批注以进行验证. 表单已正确呈现，但是在提交表单时，验证步骤不会执行.如果我使用jsf标签编写相同的表单，则验证工作正常.
I generate a dynamic form starting from annotated bean. The same bean is annotated for validation using Hibernate Validator. The form is correctly rendered but when the form is submitted the validation step it's not executed. If I write the same form with jsf tag the validation works properly.
有什么主意吗?
表单页面:
<body>
<ui:composition template="/template/basetheme_one_col.xhtml">
<ui:define name="title">#{__g4cController.entityClassName}</ui:define>
<ui:define name="main_area">
<h2>#{__g4cController.entityClassName}</h2>
<br />
<div id="briciole_pane">
<h:form id="briciole_pane_form" styleClass="form">
<h:commandLink action="home" value="Home" />
<h:outputText value=" / " />
Modifica #{__g4cController.entityClassName}
</h:form>
</div>
<br />
<h:form id="edit_record" styleClass="myForm">
<rich:calendar rendered="false" />
<h4>Modifica #{__g4cController.entityClassName}</h4>
<h:messages errorClass="error_msg" layout="list" globalOnly="false" />
<br />
<h:panelGrid binding="#{__g4cController.dynamicForm}" />
<div class="box_bottoni">
<div class="box_bottone_azzurro">
<h:commandLink action="#{__g4cController.edit}" value="Salva Modifiche">
<f:param name="cruddao.objectKey" value="#{g4c:getXmlFromObject(__g4cController.entity.id)}" />
</h:commandLink>
</div>
<h:commandLink action="#{__g4cController.listSetup}" styleClass="link_annulla_rosso"
value="Annulla e torna a lista #{__g4cController.entityClassName}" immediate="true" />
<div class="clear"></div>
</div>
</h:form>
</ui:define>
</ui:composition>
</body>
从EntityBean开始生成表单的代码
Code that generate the form starting from EntityBean
public UIComponent getDynamicForm() {
FacesContext ctx = FacesContext.getCurrentInstance();
Application app = ctx.getApplication();
HtmlPanelGrid panel = (HtmlPanelGrid) app.createComponent(HtmlPanelGrid.COMPONENT_TYPE);
panel.setColumns(2);
Class currentClass = super.entityClass;
while(!currentClass.equals(Object.class)) {
Field fields[] = currentClass.getDeclaredFields();
for(Field field: fields) {
Annotation id = field.getAnnotation(Id.class);
Annotation embeddedId = field.getAnnotation(EmbeddedId.class);
OneToMany oneToMany = field.getAnnotation(OneToMany.class);
ManyToMany manyToMany = field.getAnnotation(ManyToMany.class);
Transient transientTag = field.getAnnotation(Transient.class);
Temporal temporal = field.getAnnotation(Temporal.class);
if(id == null && embeddedId == null && oneToMany == null && manyToMany == null && transientTag == null) {
int modifiers=field.getModifiers();
if(!Modifier.isStatic(modifiers)) {
HtmlOutputLabel label = (HtmlOutputLabel) app.createComponent(HtmlOutputLabel.COMPONENT_TYPE);
String name = field.getName();
Class clazz = field.getType();
panel.getChildren().add(label);
label.setFor(name);
label.setValue(StringUtil.capitalize(name)+":");
String expression = "#{__g4cController.entity."+name+"}";
ValueExpression valueExpression = app.getExpressionFactory()
.createValueExpression(ctx.getELContext(),
expression,
clazz);
ManyToOne manyToOne = field.getAnnotation(ManyToOne.class);
if(manyToOne != null) {
HtmlSelectOneMenu input = (HtmlSelectOneMenu) app.createComponent(HtmlSelectOneMenu.COMPONENT_TYPE);
input.setId(name);
input.setValueExpression("value", valueExpression);
input.setLabel(name);
UISelectItems items = (UISelectItems) app.createComponent(UISelectItems.COMPONENT_TYPE);
input.getChildren().add(items);
String manyToOneClassName = field.getType().getSimpleName().toLowerCase();
String itemsExpression = "#{"+manyToOneClassName+".entityListSelectOne}";
ValueExpression itemsValueExpression = app.getExpressionFactory()
.createValueExpression(ctx.getELContext(),
itemsExpression,
SelectItem[].class);
items.setValueExpression("value", itemsValueExpression);
panel.getChildren().add(input);
} else {
if(temporal != null) {
if(temporal.value().equals(TemporalType.DATE)) {
UICalendar input = (UICalendar) app.createComponent(UICalendar.COMPONENT_TYPE);
input.setId(name);
input.setValueExpression("value", valueExpression);
input.setDatePattern("dd/MM/yyyy");
//input.setConverter(new DateConverter());
panel.getChildren().add(input);
}
} else {
HtmlInputText input = (HtmlInputText) app.createComponent(HtmlInputText.COMPONENT_TYPE);
input.setId(name);
input.setValueExpression("value", valueExpression);
input.setLabel(name);
input.setSize(50);
input.setMaxlength(255);
panel.getChildren().add(input);
}
}
}
}
}
currentClass = currentClass.getSuperclass();
}
return panel;
}
实体Bean示例:
@Entity
公共类Istituto实现可序列化的IBaseEntity { 私有静态最终长serialVersionUID = 1L;
public class Istituto implements Serializable, IBaseEntity { private static final long serialVersionUID = 1L;
@Id
@SequenceGenerator(name="IstitutoGenerator", sequenceName="ISTITUTO_SEQ", allocationSize=1)
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator="IstitutoGenerator")
@Column(name="ID_ISTITUTO")
private int idIstituto;
@NotNull
private String nome;
@NotNull
private String indirizzo;
@NotNull
private String comune;
@NotNull
@Pattern(regexp="[0-9][0-9][0-9][0-9][0-9]", message="Il CAP deve essere composto da 5 numeri")
private String cap;
@OneToMany(mappedBy="istituto")
private Set<Classe> classes;
public Istituto() {
}
public int getIdIstituto() {
return this.idIstituto;
}
public void setIdIstituto(int idIstituto) {
this.idIstituto = idIstituto;
}
public String getCap() {
return this.cap;
}
public void setCap(String cap) {
this.cap = cap;
}
public String getComune() {
return this.comune;
}
public void setComune(String comune) {
this.comune = comune;
}
public String getIndirizzo() {
return this.indirizzo;
}
public void setIndirizzo(String indirizzo) {
this.indirizzo = indirizzo;
}
public String getNome() {
return this.nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public Set<Classe> getClasses() {
return this.classes;
}
public void setClasses(Set<Classe> classes) {
this.classes = classes;
}
@Override
public Integer getId() {
return this.getIdIstituto();
}
@Override
public int hashCode() {
int hash = 0;
hash += this.getIdIstituto();
return hash;
}
@Override
public boolean equals(Object object) {
if (!(object instanceof Istituto)) {
return false;
}
Istituto other = (Istituto) object;
if (this.getIdIstituto() != other.getIdIstituto()) {
return false;
}
return true;
}
@Override
public String toString() {
return this.getNome();
}
}
推荐答案
您必须在输入组件中添加javax.faces.validator.BeanValidator的实例:
You have to add an instance of javax.faces.validator.BeanValidator to your input components:
input.addValidator(new BeanValidator());
原因是在标签执行期间添加了默认验证器(BeanValidator注册为一个): http ://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-635 .
The reason is that default validators (BeanValidator is registered as one) are added during tag execution: http://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-635.
这篇关于JSF 2动态表单和bean验证JSR 303的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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