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Getting servlet init parameter that is defined in web.xml

1. Create a new dynamic web project using eclipse.
2. Create a one new servlet and include the following code.

package com.controller;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class LoginController extends HttpServlet {
                private static final long serialVersionUID = 1L;

                public LoginController() {

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                                ServletConfig config = getServletConfig();
                                System.out.println("Init parameter user name: " + config.getInitParameter("userName"));
                                System.out.println("Init parameter password: " + config.getInitParameter("password"));

3. Update the web.xml file with following content.


4. Run the servelet through browser, you can able to get the user name and password from servlet init parameter.


Gayathri said…
Details article for a developer working in web application. Thank you for sharing.
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