Formatting date in Java web with Primefaces

Question

Speak guys, I need to format a date in Java.

I’m using Java web, Primefaces, MVC, TDD, JSF, Hibernate. I am an intern and I am doing a Project Manager project for my company.

My date input view looks like this:

<h:outputText value="Data de Início"/>
    <p:calendar  value="#{projetoBean.projetoCadastro.dataInicio}"  pattern="dd/MM/yyyy">
    </p:calendar>   

My view to show the date is like this:

        <p:column headerText="Data de Início" filterBy="#{projeto.dataInicio}">
    <h:outputText value="#{projeto.dataInicio}"/>
    </p:column> 

The entity so:

@Temporal(value = TemporalType.TIMESTAMP)
@Column(name = "dataInicio_projeto")
private Date dataInicio;

And she shows it like this:

I wanted you to show it like this:

30/09/2016 - Day/Month/Year and no timetable.

Answer 1

Place a specific getter in your entity:

public String getDataInicioFormatada() {
    SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
    sdf.setLenient(false);
    return sdf.format(this.getDataInicio());
}

So in your view you do this:

<p:column headerText="Data de Início" filterBy="#{projeto.dataInicio}">
    <h:outputText value="#{projeto.dataInicioFormatada}"/>
</p:column>

Note that the filterBy is not amended. Only the outputText is amended.

Answer 2

Test with the code below:

<p:column headerText="Data de Início" filterBy="#{projeto.dataInicio}">
    <h:outputText value="#{projeto.dataInicio}">
        <f:convertDateTime pattern="dd/MM/yyyy"/>
   </h:outputText>
</p:column>

Answer 3

Using a date of type java.util.Date, to solve only in the JSF, using <f:convertDateTime pattern="dd/MM/yyyy"/>.

Example:

<h:outputText value="#{lista.dtEmissao}">
    <f:convertDateTime pattern="dd/MM/yyyy"/>
</h:outputText>

Using your example:

<p:column headerText="Data de Início" filterBy="#{projeto.dataInicio}">
    <h:outputText value="#{projeto.dataInicio}">
        <f:convertDateTime pattern="dd/MM/yyyy"/>
    </h:outputText>
</p:column>

The filterBy (or sortBy) also not affected and still understands the field as date, but the display with the outputText will be formatted.