Servlet - Pagination with Example

Pagination in Servlets is a technique used to split large datasets into multiple pages and display only a limited number of records per page. It improves application performance by reducing server load and enhances user experience by making data easier to navigate.

• Breaks large datasets into smaller pages
• Improves response time and reduces database load
• Widely used in search results, admin panels, and reports

Why Pagination is Important?

• Prevents loading thousands of records at once
• Reduces memory consumption on server
• Improves UI performance and readability
• Enhances scalability of web applications

Working of Pagination

Pagination in Servlet works by dividing records into pages using two main values:

• Page number (page) -> tells which page user is currently viewing
• Records per page (limit) -> tells how many records should be shown on one page

Formula: Instead of loading all records at once, Servlet uses this formula to calculate the starting point of data for the current page. It fetches only the required set of records from the database, making the application faster and more efficient.

Start Index=(page−1)×recordsPerPage

Steps To Implements Servlet Pagination with MySQL

Follow these steps to use Pagination functionality in your Servlet Application.

Step 1: Create Table in MySQL

Create a employee table in Mysql

create table employee(
empid int(11),
empname varchar(20),
empsalary int(11),
empdept varchar(20)
);

Step 2: JavaBean Class (Employee)

Create a JavaBean class for setting values to the database and getting values from the database.

Step 3: Connection Factory Class

Creating a factory class for Getting connections from the DataBase.

Step 4: DAO Class (EmployeeDAO)

Creating a Dao class for creating a Factory class Object and calling in that method. And create a query and set it to JavaBean object and added to ArrayList Object.

Step 5: Servlet Class (EmployeeServlet)

Create a Servlet class and create a DAO class Object and call the method and Forwarded to display.jsp page

Step 6: Configure web.xml

Maps servlet to URL pattern.

Step 7: Create display.jsp

It is used for Displaying records for 5 to 5 records

Step 8: Run the Application

• Start Apache Tomcat Server
• Deploy the project in IDE (Eclipse/IntelliJ)
• Run the application
• Open browser and hit:

http://localhost:8080/YourProjectName/employee.do

Output:

Explanation: The application fetches employee records from the MySQL database in small chunks using pagination logic in the Servlet. Based on the current page number, the DAO calculates the starting index and retrieves only a limited number of records using SQL LIMIT. These records are then forwarded to the JSP page for display with navigation links (Previous, Next, and page numbers).