Question

I am tying to design a simple login. I have a DB running on MySQL…. I created a Login page which has a form.

<form action="login" name="login" method="post">
                <div id="contents" >
                   <table  width="400" border="0">
                       <tr>
                            <td height="44" width="100" style="color: white;">User Name: 
                            </td>
                           <td><input name="username" id="username" type="text" />


                          </td>
                       </tr>
                      <tr>
                              <td height="44" style="color: white;">Password: 
                                 </td>
                             <td><input name="password" type="password" id="password" />
                             </td>
                       </tr>

                        <tr>
                           <td height="60">&nbsp;
                             </td>
                           <td><input name="login" type="submit" value="Login" onclick="return validate()"/>
                            </td>
                        </tr>

                     </table>

                  </div>


           </form>

Also have a Login.java file…. in the package called functions…. Now i’m trying to do the servlet mapping but i’m not sure wad i’m doing wrong cause i keep getting

HTTP Status 404 – /Wifi/login
type Status report

message /Wifi/login

description The requested resource (/Wifi/login) is not available.

This is what i have in the web.xml

    <servlet>
    <servlet-name>logicalName</servlet-name>
    <servlet-class>functions.Login</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>logicalName</servlet-name>
    <url-pattern>/login</url-pattern>
  </servlet-mapping>

Would really appreciate the help cause i’m lost….!!!

I had my web.xml in the wrong place but now that i put it inside web-inf…

i start getting this error

javax.servlet.ServletException: Error instantiating servlet class

functions.Login
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source) java.lang.Thread.run(Unknown Source)

root cause

java.lang.ClassNotFoundException: functions.Login
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source) java.lang.Thread.run(Unknown Source)

But my Login.Java class exists….!!!

Answer 1

You’re very close, I think. It seem to me that the only problem is the action attribute on your form. Does it work any better if you do:

<form action="/login" name="login" method="post">