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2020 Silver Donald Trump Private Mintage, 45th Presidential, Limited Edition Mint. 1 Troy Oz .999 Fine Silver Round
$42.99 (as of May 20, 2024 03:10 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Introduction to Java Web Technologies:
Java Web Development revolves around two powerful technologies – Servlets and JSP (JavaServer Pages). These technologies play a crucial role in creating dynamic, interactive, and robust web applications. While Servlets handle server-side processing, JSP allows developers to seamlessly embed Java code into HTML pages, facilitating a smooth user experience.
Building Web Applications with Java:
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Servlets:
Servlets are Java classes that run on the server-side, processing client requests and generating dynamic responses. Acting as intermediaries between clients and server resources, they provide a foundation for web application development. Here’s a simple example of a Servlet that greets users based on their input:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class GreetingServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType(“text/html”);
PrintWriter out = response.getWriter();
String name = request.getParameter(“name”);
out.println(“<html><body>”);
out.println(“<h2>Hello, ” + name + “!</h2>”);
out.println(“</body></html>”);
}
}
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JSP (JavaServer Pages):
JSP enables developers to create dynamic web content by embedding Java code within HTML. This approach enhances code maintainability and promotes a clear separation of concerns. Here’s an example of a simple JSP page that displays a dynamic greeting message:
<!DOCTYPE html>
<html>
<head>
<title>Greeting Page</title>
</head>
<body>
<h2>Hello, <%= request.getParameter(“name”) %>!</h2>
</body>
</html>
To use this JSP, you’ll need to configure the web.xml file to map the Servlet and JSP:
<servlet>
<servlet-name>GreetingServlet</servlet-name>
<servlet-class>GreetingServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>GreetingServlet</servlet-name>
<url-pattern>/greeting</url-pattern>
</servlet-mapping>
Conclusion:
Java Web Development with Servlets and JSP empowers developers to create dynamic and interactive web applications. By harnessing the capabilities of these technologies, you can build feature-rich and scalable web solutions. Whether you’re a seasoned Java developer or just starting, exploring Servlets and JSP will open up a world of possibilities to create compelling web experiences. Get started today and elevate your web development game with Java!
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$9.99 (as of May 20, 2024 03:11 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
