Jsp class not visible

Question

I'm trying to get my first jsp page running and it does not work as I expect it to. I'm using Tomcat7 + Eclipse.

First I created my framework.java file and put it in: \ROOT\WEB-INF\classes\framework.

Then I successful compiled it so I got: \ROOT\WEB-INF\classes\framework\Layer1.class, Layer2.class, Layer3.class Then i did the actual jsp file:

<%@ page import="framework.Layer1" %> <%= Layer1.write() %>

Now, even Eclipse at this point gives me the warning: The type framework.Layer1 is not visible. And when I run the page, naturally it says: The type framework.Layer1 is not visible.

What am I doing wrong here? I tried all tutorials I found and all had the same issue. Any suggestions?

Pablo Santa Cruz · Accepted Answer · 2012-03-06 19:52:06Z

4

You are in the right path, but you need to make sure Layer1 is a public class.

So, your Layer1 class must be something like:

package framework; public class Layer1 { public String write() { return "hello"; } }

Instead of:

package framework; class Layer1 { // do note the non-use of public keyword here }

answered Mar 6, 2012 at 19:52

Pablo Santa Cruz

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5 Comments

John Frost Over a year ago

Yes, i tried that but then javac says: framework.java:4: error: class Layer1 is public, should be declared in a file named Layer1.java

Pablo Santa Cruz Over a year ago

Yes, you need to use one-file-per-class approach java uses. Unfortunately, this is not C#. :-)

John Frost Over a year ago

But, then what is the package for? Do I need to have 3 files all package framework and each with one class?

Pablo Santa Cruz Over a year ago

@JamieFlowers: yes. In java, yes. framework will be a directory with three files: Layer1, Layer2 and Layer3.

John Frost Over a year ago

Unfortunately I still get the same error, but i discovered that when I do <%@ page import="framework.*" %> Eclipse will not show an error.

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