In system user can type a "URL", like " http://www.google.com " and this URL must be processed in SERVER and after the content is showed in XHTML page.
In my XHTML i have:
<h:form id="formNavegador" enctype="multipart/form-data">
<p:inputText value="#{navegadorMB.url}" required="true"
requiredMessage="A url é obrigatória"
type="Digite a url para navegar. Ex: http://www.google.com.br" />
<h:outputText value="#{navegadorMB.htmlContent}" escape="false"
id="htmlContent" />
<p:commandButton id="commandButtonProcessar" value="Ir"
update=":formNavegador:htmlContent" icon="ui-icon-play"
actionListener="#{navegadorMB.processaRequisicao}" />
</h:form>
So, when user type the URL and click in commandButton, the code bellow is processed:
public void processaRequisicao(ActionEvent event){
if (url.isEmpty()){
addErrorMessage("Você precisa digitar um endereço");
FacesContext.getCurrentInstance().validationFailed();
}else{
htmlContent = boPadrao.processaRequisicaoOnServer(url);
System.out.println(htmlContent);
}
}
In my method "processaRequisicaoOnServer" the URL is opened and all content is read, after the content of site is returned. See:
public String processaRequisicaoOnServer(String url) {
URL urlObj;
try {
urlObj = new URL(url.trim().toLowerCase());
BufferedReader conteudo = new BufferedReader(new InputStreamReader(urlObj.openStream()));
String linha = "";
StringBuffer sb = new StringBuffer();
while((linha = conteudo.readLine()) != null)
{
sb.append(linha);
}
return sb.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
throw new BOException(e.getMessage());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
throw new BOException(e.getMessage());
}
}
So, the content of URL is showed in console because of "System.out.." but the h:outputText is not updated as i hope.
I can't see your entire bean here, but here are some things that I've noticed:
If this is your entire form, you don't need the enctype="multipart/form-data"
, so you can just remove it.
There is a strange type
attribute in your first p:inputText
. Didn't you mean title
?
<p:inputText type="Digite a url para navegar. Ex: http://www.google.com.br" />
Also, you don't need to specify the parent of a component when the component is already a child of this parent, so you could change this:
<p:commandButton id="commandButtonProcessar" value="Ir" update=":formNavegador:htmlContent" icon="ui-icon-play" actionListener="#{navegadorMB.processaRequisicao}" />
to this:
<p:commandButton id="commandButtonProcessar" value="Ir" update="htmlContent" icon="ui-icon-play" actionListener="#{navegadorMB.processaRequisicao}" />
And you are calling an action listener and passing an ActionEvent
, which you don't need to, so you could change this:
public void processaRequisicao(ActionEvent event) { ...
to this:
public void processaRequisicao() { ...
Furthermore, in order to test it all, you could go in steps, creating a mock method first and checking if things are working properly, and then adding your business stuff.
For instance, to test this you could change your processaRequisicao
to something like:
public void processaRequisicaoMock() {
htmlContent = "Funcionou!";
}
And then call it, and check if the view is working properly. If it is, you can go on, adding the business layer and all.
I hope it helps.
Instead of
<p:commandButton id="commandButtonProcessar" value="Ir"
update=":formNavegador:htmlContent" icon="ui-icon-play"
actionListener="#{navegadorMB.processaRequisicao}" />
Try
<p:commandButton id="commandButtonProcessar" value="Ir"
update="htmlContent" icon="ui-icon-play"
actionListener="#{navegadorMB.processaRequisicao}" ajax="false"/>
Also, change your method to
public void processaRequisicao(){
if (url.isEmpty()){
addErrorMessage("Você precisa digitar um endereço");
FacesContext.getCurrentInstance().validationFailed();
}else{
htmlContent = boPadrao.processaRequisicaoOnServer(url);
System.out.println(htmlContent);
}
}
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