context attribute

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Aayshi Mehrotra
context attribute
2 Answer(s)      6 years and 7 months ago
Posted in : JSP-Servlet

i have writteh the program lyk this ...still error 405 method not found is coming.please suggest me the solution.

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

public class Contextattribute extends HttpServlet
{
public void Service(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException
{
res.setContentType("text/html");

PrintWriter out = res.getWriter();
out.println("context created");
ServletContext ctx = getServletContext();
Integer count = (Integer)ctx.getAttribute("count");

if(count==null)
{count = new Integer(1);}

else
{count = new Integer(count.intValue()+1);}

ctx.setAttribute("count",count);

out.println(count.intValue());
}}
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January 27, 2011 at 1:55 PM


Hi Friend,

It seems that server is not getting the path of servlet.

Anyways, follow these steps:

Put servlet-api.jar inside the lib folder of apache tomcat. 1)create a servlet.

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

public class HelloWorld extends HttpServlet{ 
  public void doGet(HttpServletRequest request, HttpServletResponse response)
                                   throws ServletException,IOException{
    response.setContentType("text/html");
    PrintWriter pw = response.getWriter();
    pw.println("<html>");
    pw.println("<head><title>Hello World</title></title>");
    pw.println("<body>");
    pw.println("<h1>Hello World</h1>");
    pw.println("</body></html>");
  }
}

2)Go to the webapps folder of your apache tomcat and create a web application folder but it should having an appropriate name like examples.

3)Create web.xml and classes folder inside the WEB_INF folder of web application folder.

4)Copy the servlet to the classes folder.

5)Edit the web.xml to include servlet?s name and url pattern.

Hello HelloWorld Hello /HelloWorld

6)Compile your servlet.

7)Run Tomcat server by clicking the startup.bat file. This is located inside the bin folder of apache tomcat.

8)Open the browser and type the following url:

http://localhost:8080/webapplicationfoldername/servletname

For more information, visit the following link:

Servlet Tutorials

Thanks



January 27, 2011 at 3:28 PM


it got solved by removing braces at else ....


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