Thank you Stuart for your great help.
HellowWorld servlet works! But I still have one problem.
I got login.jsp in the webapps\onjava directory. It has
<form name="loginForm" method="POST" action="servlet/com.onjava.login">
In login.java, it has
private String target = "/welcome.jsp";
...
// Forward the request to the target named
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher(target);
dispatcher.forward(request, response);
In welcome.jsp, it has very simple return statement.
<b>Welcome : <%= request.getAttribute("USER")
In webapps\onjava\Web-inf\web.xml, I have
<servlet>
<servlet-name>login</servlet-name>
<servlet-class>com.onjava.login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login</servlet-name>
<url-pattern>/servlet</url-pattern>
</servlet-mapping>
In a browser, I use http://localhost:8080/onjava/login.jsp and I got the login
screen, then click on submit button. I got the following error.
HTTP Status 404 - /welcome.jsp
description The requested resource (/welcome.jsp) is not available.
Look like it runs the login class, how do I correct this problem? Thank you.
> Also, make sure your HelloWorld servlet is mapped-in in your webapps
> deployment descriptor. By the way, the folder should be called WEB-INF not
> web-inf.
>
Windows somehow change WEB-INF to Web-inf automatically. I could not use
WEB-INF.
Jim
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