Sunday, December 24, 2017

Program to access word and Excel document (Demonstrate the use of ServletRequest and ServletResponse methods such as setContentType())

Program save with Name: index.html

<html>
<head><title>Downloading Program</title></head>
<body>
<a href="wordServlet">Ms-Word-Document</a><br>
<a href="excelServlet">Ms-Excel-Document</a>
</body>
</html>
Program save with Name: WordServlet.java

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class WordServlet extends HttpServlet
{
          public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
          {
                   response.setContentType("application/msword");
                   PrintWriter out=response.getWriter();
                   out.println("This document is dynamically generated by the servlet");
                   out.println("Its purpose to demostrate the use of content type.");
                   out.close();
          }
}
Program save with Name: ExcelServlet.java

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class ExcelServlet extends HttpServlet
{
          public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
          {
                   response.setContentType("application/vnd.ms-excel");
                   PrintWriter out=response.getWriter();
                   out.println("Name\t Job\t Salary");
                   out.println("Aman\t Trainer\t 5000");
                   out.println("Deepak\t Excutive\t 5000");
                   out.println("Rahul\t Mnage\t 5000");
                   out.println("\t Total Salary\t=sum(c2:c4)");
                   out.close();
          }
}
Program save with Name: web.xml

<web-app>

<servlet>
<servlet-name>s1</servlet-name>
<servlet-class>WordServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>s1</servlet-name>
<url-pattern>wordServlet</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>s2</servlet-name>
<servlet-class>ExcelServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>s2</servlet-name>
<url-pattern>excelServlet</url-pattern>
</servlet-mapping>

</web-app>
Output :
Click on Hyperlink to access or download word and excel document.
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