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Editorial Team
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Asked: 2026-06-18T05:20:09+00:00

Below is code for a simple Servlet(Process.java), JSP page(index.jsp) and Model(Model.java). index.jsp : <%@

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Below is code for a simple Servlet(Process.java), JSP page(index.jsp) and Model(Model.java).

index.jsp:

<%@ page import="com.example.*" %>

<html>
<head>
<title> Myapp </title>
</head>

<body>
<form action="process.do" method="POST">
UserName: <input type="text" name="username">
<br>
UserID: <input type="text" name="userid">
<br>
<input type="submit">
<br>

<%
Model m = (Model) request.getAttribute("model");

if( m != null) {
out.println("Username: " + m.getUserName() );
out.println("UserID: " + m.getUserID() );
}
%>

</form>
</body>
</html>

Process.java:

package com.example;

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

public class Process extends HttpServlet {

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        Model m = new Model();
        m.setUserName( request.getParameter("username") );
        m.setUserID( Integer.parseInt( request.getParameter("userid") ) );

        request.setAttribute("model", m);
        response.sendRedirect( request.getRequestURI() );
    }
}

Model.java:

package com.example;

public class Model {

    private String userName = "";
    private int userID = -1;

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public void setUserID(int userID) {
        this.userID = userID;
    }

    public String getUserName() {
        return userName;
    }

    public int getUserID() {
        return userID;
    }
}

web.xml:

<servlet>
    <servlet-name>Process</servlet-name>
    <servlet-class>com.example.Process</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>Process</servlet-name>
    <url-pattern>/process.do</url-pattern>
</servlet-mapping>

I am using Tomcat7 and I have deployed this app in context /myapp.
I am able to view index.jsp page correctly, but when I submit the form, I am getting below error:

HTTP Status 405 - HTTP method GET is not supported by this URL
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1 Answer

  1. Editorial Team

    What you are trying to accomplish with response.sendRedirect( request.getRequestURI() ); ?

    This will instruct browser to send a GET request to /process.do which is not handled in servlet(You are extending only doPost). If you want to go back to index.jsp just have response.sendRedirect( "index.jsp");

    EDIT:

    Because you want model attribute to be accessed in index.jsp, we cant actually do a browser redirect. Instead a server redirect is needed.

    request.getRequestDispatcher("index.jsp").include(request, response) instead of response.sendRedirect() should work for you.

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