JSP Syntax (10)

js| syntax
<jsp:getProperty>

Gets the value of the Bean's property for display in the page



JSP syntax

<jsp:getproperty name= "Beaninstancename" property= "PropertyName"/>

Example

<jsp:usebean id= "Calendar" scope= "page" "class=" employee. Calendar "/>


Calendar of <jsp:getproperty name= "Calendar" property= "username"/>


Describe

This <jsp:getProperty> element will get the Bean's property value and can be used or displayed in the JSP page. Before you use <jsp:getProperty>, you must use <jsp:useBean> Create it.



<jsp:getProperty> elements have some limitations:



You can't use <jsp:getProperty> to retrieve a property that has already been indexed.

You can use &LT;JSP:GETPROPERTY&GT with the JavaBeans component, but not with the enterprise bean.

Property

Name= "Beaninstancename"

Name of the bean, specified by <jsp:useBean>



Property= "PropertyName"

The name of the property of the specified bean.



Skills:

As mentioned in Sun's JSP reference, if you use <jsp:getProperty> to retrieve a value that is null, then NullPointerException will appear, and if you use a program segment or an expression to retrieve its value, Then there is null (empty) on the browser.