import javax.servlet.ServletRequestEvent; import javax.servlet.ServletRequestListener; public class RequestListener implements ServletRequestListener { @Override public void requestDestroyed(ServletRequestEvent sre) { System.out.println("Request Destroyed"); } @Override public void requestInitialized(ServletRequestEvent sre) { System.out.println("Request initialized"); } }
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"> <listener> <description>RequestListener</description> <listener-class>RequestListener</listener-class> </listener> </web-app>
import java.io.IOException; import java.io.PrintWriter; import javax.servlet.annotation.WebServlet; import javax.servlet.http.*; import javax.servlet.*; @WebServlet(urlPatterns = {"/SampleApp"}) public class SampleApp extends HttpServlet { @Override public void doGet(HttpServletRequest req, HttpServletResponse res)throws IOException{ try(PrintWriter out = res.getWriter()){ ServletContext context = req.getServletContext(); System.out.println("In doGet method"); } } }
Run
' SampleApp', server console has messages like below.
Info: Request initialized Info: In doGet method Info: Request Destroyed
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