dofski has asked for the wisdom of the Perl Monks concerning the following question:

I am very newbie ... one week

I use Windows 7

I installed Apache ... it works with,

Http:\\localhost test, and is running.

I installed Dwimperl. I can run simple Perl programs from the command line and Padre.

I had great pain but eventual success to get local host to output Hello World as web page,

code is in Hello2a.pl, it is:

#!C:\Dwimperl\Perl\bin\perl
print "Content-type:text/html\n\n";
print "<html>\n";
print "<h1>Hello World</h1>\n";
print "</html>\n";

[download]

After many trials it worked when I put Hello2a.pl in,

C:\Apache2\cgi-bin

Now I open Hello2a.pl in Padre. when I run, the code is just output in the command line with the script as above. No web page with just Hello World appears.

I checked view options in Padre and chose HTML ... but on run get error ... no execution mode was defined etc Perhaps I need to install some CPAN modules ?

Any advice greatly appreciated as I've surfed and read without success.

dofski

Replies are listed 'Best First'.
Re: Output web page with Padre ... How ?
by davido (Cardinal) on Apr 20, 2014 at 16:16 UTC

    Padre isn't a webserver, and doesn't establish some internal server/browser relationship. If you run code in Padre, even if it's code that generates HTML, you're just going to see plain text output, marked up with HTML tags in this case. The same goes for running a CGI script from the command line.

    Apache is a webserver. If properly configured, it can execute CGI scripts when a browser requests the correct URL. It then sends the raw output (much like what you see when you run a CGI script from the command line) to the client browser, and the browser, comprehending the HTML and CSS markup, renders it as a pretty web page.

    The normal workflow for developing a CGI script would be to write some code, run it from the command line, possibly including the query string on the command line (CGI allows this), observing the output. And then once that's working, hit the correct URL (hopefully just internally reachable for now) with your local browser. Assuming Apache is configured to run the script, and assuming the script creates valid output for CGI, you'll see the webpage you want. This is an iterative process; back to the editor, on to the command line to preview, and then on to the browser to verify and see what needs tweaking.

    A more advanced (and better) workflow would also have tests written that use a user agent to hit the web page and verify things are working right. With well written and well thought-out tests, the iterative process tends to go faster, and have fewer surprises.


    Dave

[reply]

      Thank-you for clarification and advice. I now understand the significance of Padre not being a web server. I am now doing I think what you say. I use Padre to check the code initially. Then I run the .pl program from the browser. </pl>

[reply]
Re: Output web page with Padre ... How ?
by locked_user sundialsvc4 (Abbot) on Apr 21, 2014 at 13:48 UTC

      Thank-you for advice and links. I had some basic misunderstanding and perhaps wrong expectations. I now view the web pages via localhost in the browser. I also got HTML::Template to work.

[reply]

        “W00T!! W00T!!”   :-D

        “Welcome to the Monastery,” and please keep in touch with your future questions.   All of us have “been there, done that ...”

Back to Seekers of Perl Wisdom