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Servlet HTML form

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posted 13 years ago

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Hey guys i have a problem and I have tried several times to solve it. Here is the scenario. I created a student registration HTML file and a servlet to answer this file. The problem is the submit button doesn't work on the html form. I have tried dozens and dozens of ways to put the right "action =path" but it doesn't work. This is what I did step-by-step.

In NETBEANS 6.9.1

1) Create new web application project.
2) Under source packages, I created a new Chapter39 package.
3) After that, I right-clicked the chapter39 package and created a HTML form and a java servlet.
4) After creating both, I right clicked the HTML form and clicked "VIEW"
5) I entered the information into the html form and when I clicked submit, it said "FILE NOT FOUND". When I went to the location of the file, it was there. So I don't understand.... what's going on.

HERE IS THE HTML CODE.

<html>
<head><title> Student Registration Form </title></head>
<body bgcolor ="black" text ="white">

<h2> Student Registration Form </h2>

<p>
        <label> Last Name </label>
        <input type ="text" name ="lastName" size ="25" />
        <label> First Name </label>
        <input type ="text" name="firstName" size="25"/>
        <label> MiddleInitial </label>
        <input type="text" name="middleInitial"size="1" />
      </p>

<p>
          <label> Gender </label>
          <input type ="radio" name ="gender" value ="M"/> Male
          <input type ="radio" name ="gender" value ="F"/> Female
      </p>

<p>
          <label> Major </label>
          <select name ="Major" size="1">
              <option value ="CS">Computer Science</option>
              <option value ="Math">Mathematics</option>
              <option>Physics</option>
              <option>Chemistry</option>
          </select>

<label> Minor </label>
          <select name ="Minor" size="2">
              <option>Computer Science</option>
              <option>Mathematics</option>
              <option>Physics</option>
              <option>Chemistry</option>
          </select>
      </p>

<p>
           <label> Hobby </label>
           <input type ="checkbox" value="tennis" /> Tennis
           <input type ="checkbox" value="golf" /> Golf
           <input type ="checkbox" value="pingpong" />Ping Pong
      </p>

<p>  <label> Remarks </label>  </p>
      <p>  <textarea name ="remarks" rows="4" cols="50"></textarea> </p>

</form>

</body>
</html>

AND HERE IS THE SERVLET CODE

package Chapter39;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class getStudentInfo extends HttpServlet {

protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {

response.setContentType("text/html");
        PrintWriter writer = response.getWriter();

String lastName = request.getParameter("lastName");
        String firstName = request.getParameter("firstName");
        String gender = request.getParameter("gender");
        String major = request.getParameter("Major");
        String minors[] = request.getParameterValues("Minor");
        String tennis = request.getParameter("tennis");
        String golf = request.getParameter("golf");
        String pingPong = request.getParameter("pingpong");
        String remarks = request.getParameter("remarks");

writer.println("Last Name: <b>" + lastName + "</b>");
        writer.println("First Name: <b>" + firstName + "</b><br />");
        writer.println("Gender: <b>" + gender + "<b><br />");
        writer.println("Major: <b>" + major + "</b>");
        writer.println("Minor: <b>");

if(minors != null)
            for(int i = 0; i<minors.length; i++)
                writer.println(minors[i] + " ");

writer.println("</b><br />");
        writer.println("Tennis: <b>" + tennis + "</b>");
        writer.println("Golf <b>" + golf + "</b>");
        writer.println("PingPong: <b>" + pingPong + "</b><br />");
        writer.println("Remarks: <b>" + remarks + "<br />");
        writer.close();
    }

}

HERE IS THE web.xml

Please just tell me what I must put for the "ACTION = " in the html form.
I have tried .....
action = "getStudentInfo"
action = "/getStudentInfo"
action = "/servlet/getStudentInfo"

None of these work. Please guys help me out.

Paul Clapham

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posted 13 years ago

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Please read this: ItDoesntWorkIsUseless. Also, we don't know whether that HTML code was served from your web application or from somewhere else. Its base URL is important information which you didn't provide.

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Bear Bibeault

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posted 13 years ago

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You need the context path as a prefix. This can be fetched via ${pageContext.request.contextPath}.

More info in the JSP FAQ.

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Greg Bag

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posted 13 years ago

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Here is the base URL for the html
The file is saved on my USB drive.
file:///K:/Web%20Programming/Servlets/IntroToServlets/src/java/Chapter39/StudentRegistration.html

This is the URL for the servlet
http://localhost:8084/getStudentInfo

Also before creating the project, I remember seeing a context path: /IntroToServlets which is also my project name
So I did action = "/IntroToServlets/getStudentInfo" and it still says file not found.

Also, both the HTML file and the servlet.java are found in the same folder.
K:\Web Programming\Servlets\IntroToServlets\src\java\Chapter39

Bear Bibeault

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