Servlet calling from window.showModalDialog(...)

Question

I am calling another application context from window.showModalDialog but confused with following work. Same code to pass parameter within showModalDialg.

var myArguments = new Object();
myArguments.param1 = "Hello World :)";
window.showModalDialog("java2sTarget.html", myArguments, '');

and i can read these myArguments(parameters) in generated HTML using following code:

<script>
  document.write(window.dialogArguments.param1);//Hello World :)
</script>

I can't use query string & i am sending myArguments(parameter) because i want to hide parameter from Application user.

Now i am calling servlet from showModalDialog(..)

onclick="window.showModelDialog('http://localhost:7778/app/servlet/test',myArguments,'');"

onclick="window.showModelDialog('http://localhost:7778/app/servlet/test',myArguments,'');"

But as per my knowledge

Servlet  --> Servlet container --> HTML+JS+CSS

so JS will be available at last phase, but i want to use in first phase(Servlet).

Now, i need to make some Decision in servelt code based on myArguments(parameter).

is there any way to read these myArguments(parameters) in servlet code?

score 0 · Answer 1 · answered Feb 22 '12 at 14:03

0

Pass it as a request parameter in the query string.

var queryString = "param1=" + encodeURIComponent("Hello World :)");
onclick="window.showModelDialog('http://localhost:7778/app/servlet/test?' + queryString, myArguments, '');"

No, there's no other alternative. The request URL is not visible in the modal dialog anyway.

answered Feb 22 '12 at 14:03

BalusC

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Thanks teacher, for your suggestion. i learned many things from your answers. But this time main goal to hide queryString from user. – Awan Feb 24 '12 at 07:07

score 0 · Answer 2 · edited May 23 '17 at 10:34

As main objective is to hide query string from User to avoid misuse of those parameters. I tried following work around.

Developers send hidden parameters to get relative information form source(e.g.:DataBase). And we also know that we can send hidden information in Window.showModalDialog using dialogArguments

Work Around:

(i) I got relative information from server one-step before calling Window.showModalDialog using jQuery.getJSON()

(ii) i used google-gson API at servlet side to convert JavaBeans into Json strings.Solution 1 Solution 2

(iii) Convert JSON into javascript object using jQuery.parseJSON

var args = jQuery.parseJSON(json);
window.showModalDialog("pages/"+args.pageName, args, '');

i used args.pageName to make things dynamic

Please suggest improvements in this work-around. Thanks

Servlet calling from window.showModalDialog(...)

2 Answers2