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JSP bean set property
Posted on: November 21, 2008 at 12:00 AM

In this Tutorial we want to describe you a code that help in describing an example from JSP bean set property.

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

Download Source code

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