ServletConfig in Java

Using Servlet Config in Java

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ServletConfig in Java:

Sets initialization parameters for specific servlet in web.xml

ServletConfigDemo.java


package codingzon;

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

public class ServletConfigDemo extends HttpServlet {
   public void init(ServletConfig config)
       throws ServletException{
        super.init(config);
   }
  public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        //ServletConfig config=;

        response.setContentType("text/html;charset=UTF-8");

       PrintWriter pw = response.getWriter();

     try {

      pw.println(getInitParameter("Address"));

        } finally {
           pw.close();
        }
    }

}

In web.xml, along with servlet, add the parameter details as shown in below given XML code.

  <servlet>
    <servlet-name>ServletConfigDemo</servlet-name>
    <servlet-class>ServletConfigDemo</servlet-class>
     <init-param>
        <param-name>Address</param-name>
        <param-value>Delhi</param-value>
      </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>ServletConfigDemo</servlet-name>
    <url-pattern>/ServletConfigDemo</url-pattern>
  </servlet-mapping>

    ...

  </web-app>

Output: