import javax.servlet.http.*;
import javax.servlet.*;
import java.io.IOException;
public class MyServlet extends HttpServlet
{
public void doPost (HttpServletRequest req, HttpServletResponse res) throws IOException
{
ServletOutputStream out = res.getOutputStream();
res.setContentType("text/html");
out.println("<html><head><title>Basic Form Processor Output</title></head>");
out.println("<body>");
out.println("<h1>Here is your Form Data</h1>");
//extract the form data here
String title = req.getParameter("title");
String name = req.getParameter("name");
String city = req.getParameter("city");
String country = req.getParameter("country");
String tel = req.getParameter("tel");
String age = req.getParameter("age");
// extracting data from the checkbox field
String[] interests = req.getParameterValues("interests");
//output the data into a web page
out.println("Your title is " + title);
out.println("<br>Your name is " + name);
out.println("<br>Your city is " + city);
out.println("<br>Your country is " + country);
out.println("<br>Your tel is " + tel);
out.println("<br>Your interests include<ul> ");
for (int i=0;i<interests.length; i++) {
out.println("<li>" + interests[i]);
}
out.println("</ul>");
out.println("<br>Your age is " + age);
out.println("</body></html>");
}
}
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet><servlet-name>MyServletName</servlet-name>
<servlet-class>MyServlet</servlet-class>
</servlet>
<servlet-mapping><servlet-name>MyServletName</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
<html>
<head>
<title>JSP Unleashed, Chapter 1 - A Basic HTML Form</title>
</head>
<body>
<h1>Please enter your information</h1>
<form method="POST" action="formProcessor.do">
Title: <select size="1" name="title">
<option>Mr</option>
<option>Mrs</option>
<option>Miss</option>
<option>Ms</option>
<option>Other</option>
</select><br>
Name: <input type="text" name="name" size="20"><br>
City: <input type="text" name="city" size="20"><br>
Country: <input type="text" name="country" size="20"><br>
Telephone: <input type="text" name="tel" size="20">
<P>Please inform us of your interests:<br>
<input type="checkbox" name="interests" value="Sport">Sport<br>
<input type="checkbox" name="interests" value="Music">Music<br>
<input type="checkbox" name="interests" value="Reading">Reading<br>
<input type="checkbox" name="interests" value="TV and Film">TV and Film</p>
<P>Your age
<input type="radio" name="age" value="25orless" checked>Less than 25
<input type="radio" name="age" value="26to40">26-40
<input type="radio" name="age" value="41to65">41-65
<input type="radio" name="age" value="over65">Over 65</p>
<P><input type="submit" value="Submit"></p>
</form>
</body>
</html>
Download: ServletFormProcessorCheckBox.zip( 1,068 k)