Re: How to import an external jar?

From:

Mark Space <markspace@sbc.global.net>

Newsgroups:

comp.lang.java.help

Date:

Tue, 29 Jan 2008 20:06:11 GMT

Message-ID:

<TGLnj.4728$5K1.2608@newssvr12.news.prodigy.net>

Momo wrote:

Thanks for all of you
Here is the situation
I've installed Tomcat
When I compile the little program, I use the following command:
D:\Program Files\Apache Software Foundation\Tomcat
6.0\webapps\ROOT\learning>javac -cp D:\Program Files\Apache Software
Foundation\Tomcat 6.0\lib\servlet-api.jar HelloServlet.java
Still getting the same message.

1. My servlet-api.jar is in common\lib, not lib. E.g.:

<C:\Program Files\Apache Software Foundation\Tomcat 5.5\common\lib>

2. I'm not 100% sure that's the only .jar you need. There's several
other .jars in there, including jsp-api.jar and a couple of other things
that look important.

3. Try putting quotes around your path name. E.g.:

-cp "C:\Program Files\Apache Software Foundation\Tomcat
5.5\common\lib\servlet-api.jar"

4. As Roedy mentions, it might be easiest just to dump this stuff in the
ext sub-dir for java, but getting it all sorted out is really the best
option, as long as you want to really learn it.

5. A properly configured IDE (like NetBeans) would also remove this
hassle. Again, you may wish to learn it from the CL first just so you
know it, then switch to the IDE for day-to-day use.