In JSF 2.0 web application, “h:outputText” tag is the most common used tag to display plain text, and it doesn’t generate any extra HTML elements. See example…
1. Managed Bean
A managed bean, provide some text for demonstration.
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean(name="user")
@SessionScoped
public class UserBean{
public String text = "This is Text!";
public String htmlInput = "<input type='text' size='20' />";
//getter and setter methods...
}
2. View Page
Page with few “h:outputText” tags example.
JSF…
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html">
<h:body>
<h1>JSF 2.0 h:outputText Example</h1>
<ol>
<li>#{user.text}</li>
<li><h:outputText value="#{user.text}" /></li>
<li><h:outputText value="#{user.text}" styleClass="abc" /></li>
<li><h:outputText value="#{user.htmlInput}" /></li>
<li><h:outputText value="#{user.htmlInput}" escape="false" /></li>
</ol>
</h:body>
</html>
Generate following HTML code…
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<h1>JSF 2.0 h:outputText Example</h1>
<ol>
<li>This is Text!</li>
<li>This is Text!</li>
<li><span class="abc">This is Text!</span></li>
<li><input type='text' size='20' /></li>
<li><input type='text' size='20' /></li>
</ol>
</body>
</html>
For case 1 and 2
In JSF 2.0, you don’t really need to use “h:outputText” tag, since you can achieve the same thing with direct value expression “#{user.text}”.
For case 3
If any of “styleClass”, “style”, “dir” or “lang” attributes are present, render the text and wrap it with “span” element.
For case 4 and 5
The “escape” attribute in “h:outputText” tag, is used to convert sensitive HTML and XML markup to the corresponds valid HTML character.
For example,
< convert to <
> convert to >
& convert to &
By default, “escape” attribute is set to true.
3. Demo
URL : http://localhost:8080/JavaServerFaces/
