INVOKING SERVLETS FROM HTML FORM
AIM:
To write a java program to invoke servlets from HTML form.
ALGORITHM:
client.html
(1) Create a web page using HTML form that contains
the fields such as text, password and one submit button.
(2) Set the URL of the server as the value of form’s
action attribute.
(3) Run the HTML program.
(4) Submit the form data to the server.
server.java
(1) Define the class server that extends the property
of the class GenericServlet.
(2) Handle the request from the client by using the
method service() of GenericServlet class.
(3) Get the parameter names from the HTML form by
using the method getParameterNames().
(4) Get the parameter values from the HTML forms by
using the method getParameter().
(5) Send the response to the client by using the
method of PrintWriter class.
server.java:
import java.io.*;
import java.util.*;
import javax.servlet.*;
public class server extends GenericServlet
{
public void
service(ServletRequest req,ServletResponse res)throws ServletException,IOException
{
PrintWriter
pw=res.getWriter();
pw.print("<h3>Registration Successful...</h3>");
Enumeration
e=req.getParameterNames();
while(e.hasMoreElements())
{
String
str1=(String)e.nextElement();
String
str2=req.getParameter(str1);
pw.print(str1+"="+str2+"<br/>");
}
pw.close();
}
}
web.xml:
<web-app>
<servlet>
<servlet-name>Register</servlet-name>
<servlet-class>server</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Register</servlet-name>
<url-pattern>/server</url-pattern>
</servlet-mapping>
</web-app>
Client.HTML:
<html>
<head>
<title>Invoking Servlet From HTML</title>
</head>
<body bgcolor="violet">
<form name="form1" method="post"
action="http://localhost:8080/servlets1/server">
<fieldset>
<legend>Registration</legend>
Enter
E-mail :
<input type="text" name="LoginID"
size="25"/><br/><br/>
Enter Password:
<input type="password"
name="Password" size="25">
<input type="submit"
Value="SUBMIT">
</fieldset>
</form>
</body>
</html>
How to run above Program
ReplyDeleteUse netbeans ide.
Deletehi
Deletehow to run this program??
ReplyDeleteUse netbeans ide.
DeleteOutput
ReplyDeleteplease output
ReplyDeleteOutput
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