Servlet mapping issue - what I'm doing wrong?

StackOverflow https://stackoverflow.com/questions/22421775

Question

It's my first Java EE "app". I am a little bit confused... After googling I think I'm doing everything correct, but if it was so, I wouldn't come across problems : )

My form under save.jsp: 

<body>
    <form method="post" action="${pageContext.request.contextPath}/save">
        <table>
            <tr>
                <td><label for="idTxtName" >Name:</label></td>
                <td><input type="text" id="idTxtName" name="name"/></td>
            </tr>
            <tr>
                <td><label for="idTxtSurname" >Surname:</label></td>
                <td><input type="text" id="idTxtSurname" name="surname"/></td>
            </tr>
                    ... etc...
            <tr>
                <td></td>
                <td><input type="submit" value="Save person" /></td>
            </tr>
        </table>
    </form>
</body>

I've tried also:

form method="post" action="/save"

as well as

form method="post" action="save"

My Servlet:

package servlets;

import java.io.IOException;
import java.sql.SQLException;
import // etc

    public class SaveServlet extends HttpServlet {
        private static final long serialVersionUID = 1L;
        @Override
        protected void doPost(HttpServletRequest req, HttpServletResponse resp)
                throws ServletException, IOException {
                       // some actions
        }
    }

And web.xml mapping:

  <servlet>
    <servlet-name>SavingServlet</servlet-name>
    <servlet-class>servlets.SaveServlet</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>SavingServlet</servlet-name>
    <url-pattern>/save</url-pattern>
  </servlet-mapping>

After submitting my save.jsp form I see a classic message:

HTTP Status 404 - /SImpleCRUD/save
type Status report
message /SImpleCRUD/save
description The requested resource is not available.

What am I doing wrong? Is my mapping incorrect?

Était-ce utile?

La solution

Some times it's happen.There is nothing wrong in your code. But just restart your server and run again. May be it will work fine.

In JSP action="SavingServlet" and @WebServlet("/SavingServlet") Configure this annotation in class level of your Servlet. Now no need to configure your servlet in web.xml

Autres conseils

I am not sure about this is a proper way to solve this error. But Its works for me.

Change your web.xml to like this and try

<servlet>
    <servlet-name>SavingServlet</servlet-name>
    <jsp-file>/save.jsp</jsp-file>
  </servlet>

  <servlet-mapping>
    <servlet-name>SavingServlet</servlet-name>
    <url-pattern>/save</url-pattern>
  </servlet-mapping>

Its Working fine in my machine.

Your form's action should have only save:

<form method="post" action="save">

Without the context ('${pageContext.request.contextPath}/')

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