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