Form Processing using Servlet example:
I am giving a example program for processing the form as shown below from JSP to Servlet using Eclipse IDE
Step 1: Open the Eclipse
Step 2: File -> New -> Dynamic Web Project
New Dynamic Web Project window opens as shown below. Enter the Project name and click Next.
Step 3: Click on Next button again.
Step 4: Select the Generate Web.xml deployment descriptor and click Finish.
Step 5: Now the Dynamic Web Project is created and start coding the Project. The folder structure for this example is shown below.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Servlet_Samples</display-name>
<welcome-file-list>
<welcome-file>FormProcessing.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>FormInputProcessingServlet</display-name>
<servlet-name>FormInputProcessingServlet</servlet-name>
<servlet-class>formprocessing.FormInputProcessingServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>FormInputProcessingServlet</servlet-name>
<url-pattern>/FormInputProcessingServlet</url-pattern>
</servlet-mapping>
</web-app>
FormProcessing.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Form Processing</title>
</head>
<body>
<h1>Form Processing</h1>
<form action="FormInputProcessingServlet" method="get">
<label for="name">Name</label>
<input type="text" name="name" id="name">
<br>
<label for="course">Select the course</label>
<input type="checkbox" name="course" value="Servlet" id="course">Servlet
<input type="checkbox" name="course" value="JSP" id="course">JSP
<input type="checkbox" name="course" value="Struts" id="course">Struts
<br>
<label for="qualification">Qualification</label>
<select name="qualification" id="qualification">
<option>B.SC.</option>
<option>BE</option>
<option>MCA</option>
</select>
<br>
<label for="Gender">Gender</label>
<input type="radio" name="sex" value="male" id="male" />
<label for="male">Male</label>
<input type="radio" name="sex" value="female" id="female" />
<label for="female">Female</label>
<br>
<input type="submit" value="submit">
</form>
</body>
</html>
FormInputProcessingServlet.java
package formprocessing;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class FormInputProcessingServlet
*/
public class FormInputProcessingServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public FormInputProcessingServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
public void init() throws ServletException
{
System.out.println("Init Called");
}
public void destroy()
{
System.out.println("Destroy Called");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String sname=request.getParameter("name");
String scourse[]=request.getParameterValues("course");
String squalification=request.getParameter("qualification");
String sgender=request.getParameter("sex");
out.println("Name:"+sname);
out.println("<br>Courses Completed:"+Arrays.toString(scourse));
out.println("<br>Qualification:"+squalification);
out.println("<br>Gender:"+sgender);
}
}
Export to war:
Note: To Run this application, javax.servlet.jar is required.
Click to download: javax.servlet.jar
I am giving a example program for processing the form as shown below from JSP to Servlet using Eclipse IDE
Step 1: Open the Eclipse
Step 2: File -> New -> Dynamic Web Project
New Dynamic Web Project window opens as shown below. Enter the Project name and click Next.
Step 3: Click on Next button again.
Step 4: Select the Generate Web.xml deployment descriptor and click Finish.
Step 5: Now the Dynamic Web Project is created and start coding the Project. The folder structure for this example is shown below.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Servlet_Samples</display-name>
<welcome-file-list>
<welcome-file>FormProcessing.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>FormInputProcessingServlet</display-name>
<servlet-name>FormInputProcessingServlet</servlet-name>
<servlet-class>formprocessing.FormInputProcessingServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>FormInputProcessingServlet</servlet-name>
<url-pattern>/FormInputProcessingServlet</url-pattern>
</servlet-mapping>
</web-app>
FormProcessing.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Form Processing</title>
</head>
<body>
<h1>Form Processing</h1>
<form action="FormInputProcessingServlet" method="get">
<label for="name">Name</label>
<input type="text" name="name" id="name">
<br>
<label for="course">Select the course</label>
<input type="checkbox" name="course" value="Servlet" id="course">Servlet
<input type="checkbox" name="course" value="JSP" id="course">JSP
<input type="checkbox" name="course" value="Struts" id="course">Struts
<br>
<label for="qualification">Qualification</label>
<select name="qualification" id="qualification">
<option>B.SC.</option>
<option>BE</option>
<option>MCA</option>
</select>
<br>
<label for="Gender">Gender</label>
<input type="radio" name="sex" value="male" id="male" />
<label for="male">Male</label>
<input type="radio" name="sex" value="female" id="female" />
<label for="female">Female</label>
<br>
<input type="submit" value="submit">
</form>
</body>
</html>
FormInputProcessingServlet.java
package formprocessing;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class FormInputProcessingServlet
*/
public class FormInputProcessingServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public FormInputProcessingServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
public void init() throws ServletException
{
System.out.println("Init Called");
}
public void destroy()
{
System.out.println("Destroy Called");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String sname=request.getParameter("name");
String scourse[]=request.getParameterValues("course");
String squalification=request.getParameter("qualification");
String sgender=request.getParameter("sex");
out.println("Name:"+sname);
out.println("<br>Courses Completed:"+Arrays.toString(scourse));
out.println("<br>Qualification:"+squalification);
out.println("<br>Gender:"+sgender);
}
}
Export to war:
- Right click on the application and select export -> war file and deploy the war in the server.
Note: To Run this application, javax.servlet.jar is required.
Click to download: javax.servlet.jar
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