JSP bean set property
In this Tutorial we want to describe you a code that help in describing an example from JSP bean set property. The code include a package bean , we have a class Employees. The employee class include a string variable first name, last name and address. Inside the class we have a setter and getter method.
- set XXX ( ): This method hold the value of the parameter by the implementor of interface.
- get XXX( ): This method retrieve the value of the parameter set in the setXXX ( ) method.
The JSP page uses this getter and setter method.
- <jsp:useBean> -
The < jsp:use Bean> instantiate a bean class and locate a bean class with specific scope and name.
- id - A id variable is used to identify the bean in the scope .
- class -The class is represented as Package. class and instantiate a bean from class. The class should be public
- scope -This describe you the scope of the bean in which it exists.
- <jsp:set Property>This is used to set the value of one or more properties of bean using setter method. The value of the name must match with the Id.
- <jsp:get Property>This is used to return the bean property value using property getter method in bean package.
For running this application we need to save the jsp bean getproperty.jsp in Tomcat/wepapps/.jsp.The required url is typed in the browser and the JSP page will be displayed.
jsp bean getproperty.jsp
<%@page contentType="text/html"%> <%@page pageEncoding="UTF-8"%> <html>
<body>
<h1>Get Value from bean</h1>
<jsp:useBean id="emp" class="bean.Employees" scope="page" />
<jsp:setProperty name="emp" property="firstName" value="Komal Singh"/>
<jsp:setProperty name="emp" property="lastName" value="Choudhary"/>
<jsp:setProperty name="emp" property="adddress" value="Delhi"/>
<table>
<tr>
<td>First Name</td>
<td> : </td>
<td> <jsp:getProperty name="emp" property="firstName"/> </td>
</tr>
<tr>
<td>Last Name</td>
<td> : </td>
<td> <jsp:getProperty name="emp" property="lastName"/> </td>
</tr>
<tr>
<td>Address</td>
<td> : </td>
<td> <jsp:getProperty name="emp" property="address"/> </td>
</tr>
</table>
</body> </html> |
Employees.java
package bean; public class Employees {
protected String firstName;
protected String lastName;
protected String address;
public void setAddress(String address) {
this.address = address;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getAddress() {
return address;
}
public String getLastName() {
return lastName;
}
public String getFirstName() {
return firstName;
}
}
|
Output of the program
