Servlet not working :HTTP Status 404

Question

I developed a small web app using tomcat 7 and javac compiler, i compiled my servlet successfuly and deployed the class file correctly. My html form runs however when i click the submit button on the html it is suppose to run the servlet which then print some advice on the page but this error is produced:

HTTP Status 404 - HTTP Status 404 - /beer-v1/%E2%80%9DSelectBeer.do%E2%80%9D

type Status report

message /beer-v1/%E2%80%9DSelectBeer.do%E2%80%9D

description The requested resource is not available.

Apache Tomcat/7.0.34

type Status report

message /beer-v1/SelectBeer.do

description The requested resource is not available.

Apache Tomcat/7.0.34

Here is my html code:

    <h1 align=”center”>Beer Selection Page</h1>

    <form method=”POST”

          action=”SelectBeer.do”>

        Select beer characteristics<p>

            Color:

            <select name=”color” size=”1”>

                <option value=”light”> light </option>

                <option value=”amber”> amber </option>

                <option value=”brown”> brown </option>

                <option value=”dark”> dark </option>

            </select>

            <br><br>

        <center>

            <input type="submit" value="ok" />

        </center>

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

and my deployment descriptor:

<servlet>

    <servlet-name>Ch3 Beer</servlet-name>

    <servlet-class>com.example.web.BeerSelect</servlet-class>

</servlet>

<servlet-mapping>

    <servlet-name>Ch3 Beer</servlet-name>

    <url-pattern>/SelectBeer.do</url-pattern>

</servlet-mapping>

last my servlet:

package com.example.web;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class BeerSelect extends HttpServlet {

public void doPost(HttpServletRequest request,

        HttpServletResponse response)

        throws IOException, ServletException {

    response.setContentType("text/html");

    PrintWriter out = response.getWriter();

    out.println("Beer Selection Advice<br>");

    String c = request.getParameter("color");

    out.println("<br>Got beer color " + c);
 }
}

im using Java 6 javac compiler Help me out please.

what is the name of your war file that you deployed? From the error message looks like servlet context path is `beer-v1`. Therefore, your war file should be `beer-v1.war` or you will have to set proper context path in Tomcat. — Bimalesh Jha, Aug 08 '13 at 11:05
i did not package my app in a war file i just deployed the actual files to the tomcat server — Mphatheleni Ernest Matidze, Aug 08 '13 at 12:09
in your web.xml can you try this `*.do` and post back the result — Bimalesh Jha, Aug 08 '13 at 13:24
You can also try this: in web.xml change `` to `/SelectBeer` (without .do extension) and in html form set action to `SelectBeer` — Bimalesh Jha, Aug 08 '13 at 13:29
What exactly did you do to deploy your files. You should be aware that the same thing would happen if the web.xml is not deployed at all for example. — Bernd Ebertz, Aug 14 '13 at 08:16
i created a development environment on the desktop and deployment environment at CATALINA_HOME/webapps — Mphatheleni Ernest Matidze, Aug 14 '13 at 11:52

score 1 · Answer 1 · answered Dec 20 '14 at 19:20

Don't forget to declare explicitly the appropiate charset on your html file, at head section.

<head><meta charset="utf-8"> <title>... </head>

%E2%80%9D represents hex notation of right double quotation character (using UTF-8). So, it seems that Tomcat is trying to convert ”SelectBeer.do”`to UTF-8 finding no encoding declaration.

Hope it helps.

score 0 · Answer 2 · answered Aug 08 '13 at 11:13

0

write action in form as below and test again

action=”/SelectBeer.do”

answered Aug 08 '13 at 11:13

sujikin

351
3
11

hi sujikin, Unfortunately it is not working – Mphatheleni Ernest Matidze Aug 08 '13 at 11:49
I tried to replicate exactly the same as your code in a new project in eclipse. It is working perfectly fine. It must be some very simple mistake.Is there any way you can share your project online? – sujikin Aug 11 '13 at 07:30
sujikin, i am not supposed to use an IDE, im preparing for the OCE web component exam and they adviced us not to use IDEs for fast learning purposes – Mphatheleni Ernest Matidze Aug 14 '13 at 11:55
if you can share your code then I can comment further. With the code that you have provided here, I can compile and run without any issues. – sujikin Aug 16 '13 at 10:12

Servlet not working :HTTP Status 404

2 Answers2