A simple web application demonstrating how to use param implicit object in a jsp.
1. Create a simple jsp page as "param.jsp".
2. Create a simple jsp page by name "display.jsp"
display.jsp page use implicit object called as param to retrieve the form values coming as a post request.
Run param.jsp and enter username and click submit:
On clicking submit the form values passed as username to display.jsp which uses param implicit object to retrieve the value of username as shown below in the fig.
1. Create a simple jsp page as "param.jsp".
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form method="post" action="display.jsp">
<tr>
<td>Enter Your Name:</td>
<td><input name="username" type="text"></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Submit"></td>
</tr>
</form>
</body>
</html>
2. Create a simple jsp page by name "display.jsp"
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h2>Name entered: ${param.username}</h2>
</body>
</html>
display.jsp page use implicit object called as param to retrieve the form values coming as a post request.
Run param.jsp and enter username and click submit:
On clicking submit the form values passed as username to display.jsp which uses param implicit object to retrieve the value of username as shown below in the fig.