Can't get JSF input field value on JAVA backend

Question

Hello.

I have following UI part on JSF - it's simple search form with input field and submit:

 <h:form>
  <h:commandButton action="#{operation.found}" value="#{msg.search}" />
  <h:inputText name="searchParam"/>
 </h:form>

And correspondingly, on backend, i attempt to get value of input field next way:

public List<Store> getFound() {

 String name = (String) FacesContext.getCurrentInstance()
   .getExternalContext().getRequestParameterMap().get(
     "searchParam");

 SessionFactory sessionFactory = new Configuration().configure()
   .buildSessionFactory();

 HibernateTemplate hbt = new HibernateTemplate();

 hbt.setSessionFactory(sessionFactory);

 foundStores = hbt.find(BEAN_PATH + " WHERE name = ?",
   new Object[] { name });

 return foundStores;

}

And null name is passed to backend.

It seems that problem in .jsf part, but from first glance looks ok...

Answer 1

You must point the <h:inputText> to a managed-bean property:

<h:inputText name="searchParam" value="#{searchBean.searchParam}" />

and define in your bean:

private String searchParam;
public String getSearchParam() {..}
public void setSearchParam(String searchParam) {..}

and then use the searchParam in your getFound() method;

Of course, you need to have the bean defined as managed bean, but I assume you have done it:

<managed-bean>
    <managed-bean-name>searchBean</managed-bean-name>
    <managed-bean-class>mypackage.SearchBean</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
</managed-bean>

You can check a JSF tutorial (like this, for example)