Getting a response from a local JSP page

**hookmac123** · 02-15-2009, 11:26 PM

I cannot get my JavaScript to successfully get a response from a JSP file.

The Javascript is

Code:

function Com_Mydomain_Test() {} ;
Com_Mydomain_Test.prototype = new ZmZimletBase() ;
Com_Mydomain_Test.prototype.constructor = Com_Mydomain_Test ;

Com_Mydomain_Test.prototype.init = function ()
{
  var url = this.getResource('test.jsp') ;
  var result = AjxRpc.invoke(null, url, null, null, true) ;
  console.log(result) ;
}

The JSP file is test.jsp:

Code:

<html>
<body>
<p>Hello.</p>
</body>
</html>

Using Firebug, I see that the response comes back

Code:

Date	Mon, 16 Feb 2009 07:11:08 GMT
Content-Type	text/html
Content-Length	0

I know that the JSP file is being accessed because if I misspell the JSP file (e.g., "testx.jsp") I get a 404 error. Looking at the variable result using the Firebug console.log function, the value of its success property is "true" but its text property is the empty string.

**caio80** · 02-19-2009, 05:17 AM

Try with the PrintWriter.println function, you've got more control when debuggin.

Code:

        PrintWriter pw = response.getWriter();
        pw.println(msg);

And try to call your JSP from a JS, like this:

Code:

[...]
    AjxRpc.invoke(requestParams, serverURL, reqHeader,  new AjxCallback(this, this._resultCallback), false);
[...]
It_Open1_Zimlet.prototype._resultCallback = function(result) {
    this.displayStatusMessage(result.text);
};

You gotta peek around the Zimbra source code a bit to get the hang of it... Try by first checking ZmZimletBase.js, one of the most important ones.

**hookmac123** · 02-19-2009, 05:50 AM

It appears that even with a _dev Zimlet the JSP is compiled and cached; see post Debugging Zimlet JSP.

That being said, it would be helpful for _dev Zimlets that any JSP files be re-compiled at each browser F5 hard refresh. Or at the very least, make the recompilation each refresh a configuration option.

**Lapeth** · 02-19-2009, 07:26 AM

Yep, it's being cached somewhere, so apparently you have to do a zmmailboxdctl restart every time you change the jsp

**caio80** · 02-20-2009, 12:30 AM

I usually do two things: when working on the js and xml file I go the _dev way.
Otherwise I fully deploy from a zip file, because when working with a jsp you gotta restart mailboxd anyways(guess there's a possible shortcut to it, but I'm not aware of it yet...:-( ). Therefore it's better to avoid _dev, because when fully deploying you gain the following:

- working .properties substitution
- getConfig working
- no jsp path problems (I used to make a symlink in _dev to the jsp file once - I could have hardcoded the _dev jsp filepath as well in the source)
- more production-like testing (of course supposing you've got a dedicated test box for this!)
- and maybe more, but don't recall any further pros right now...

Try doing zimlet programming without too many JSP-JS hoppings then ;-)

About reloading and jsp caching, I set an alias in ~/.bashrc (remember to source it or relogin the first time)

Code:

alias zimrest='rm -rf /opt/work/temp/it_005fopen1_005fzimlet ; mv /opt/zimbra/jetty-6.1.5/work/service/jsp/org/apache/jsp/zimlet/it_005fopen1_005fzimlet/ /opt/work/temp/ && zmmailboxdctl restart'

checky your zimlet path first, and modify the alias accordingly. Could have used a script as well, but this way I solved my need faster. Anyways we don't need mission-critical checks here. The && is sufficient enough ;-9

Zimbra

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