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#1
March 24th, 2003, 12:47 PM
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using servlet output
Hi..
I have an html page with two pages. The top page is static and has a few icons. The bottom page displays output from a servlet. It has two hidden elements in it. When I click the icon in the top page I want to refer the hidden elements in the bottom page, I am using javascript to refer the variables as follows. top.framename.elementname.value This is not working, however if i write the servlet output to a temporaray file and open this file in bottom frame then the same code is working perfectly. How can i use the elements in the servlet output without creating the temporary file. Thanks,
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#3
March 24th, 2003, 08:03 PM
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Are all the pages coming from the same server? If you try to load the servlet frame from a different server you won't be able to access it with javascript (security reasons).
__________________
-james
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#4
March 25th, 2003, 07:47 AM
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sample code
Hi..
I am testing the following on a localmachine using the server provided by servlet developement kit. I have an html page which has two frames the code for this page is as follows *************************************************** Main Page <html> <frameset rows="35,*"> <frame src="static1.html" name="static"> <frame src="http://localhost:8080/servlet/TestServletOutput" name="dynamic"> </html> ************************************************* page static1.html is as follows ************************************************* static1.html <html> <script language="javascript"> function get_drill() { alert(top.dynamic.form_new.first.value); } </script> <input type=button value=click onclick=get_drill();> <input type=hidden name=first value="-1"> </html> ************************************************** the bottom frame contains the servlet..the servlet is as follows. ************************************************* import java.io.*; import java.text.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class TestServletOutput extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { doPost(request,response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<html>"); out.println("<br><head></head><br><body><br><form name=form_new><br><input type=text name=\"first\" value=\"xyz\"><br>"); out.println("</form><br></body><br></html>"); out.close(); } } *************************************************** I have posted the entire code so that you guys can just copy it and test it. I get the error Runtime error, permission denied. Both of the files are coming from my local machine so why does it give permission denied. Thanks for all your replies, - yedaanna
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#5
March 25th, 2003, 08:52 AM
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When you are opening the main page, are you requesting it through the web server, or are you jusst double clicking on it in windows explorer? If you are double clicking on it, it will probably fail. Try opening up Internet Explorer and typing in the url with localhost and the port and see what it does.
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#7
March 26th, 2003, 11:08 AM
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Javascript only allows you to act on pages that are part of the same domain. So, if your frameset is on www.xyz.com, you will not be able to control a frame located on www.abc.com.
So, if you launch your frameset from http://localhost, eg http://localhost/index.htm, and poth frames within you frameset are located on the same server, eg. http://localhost/top.htm and http://localhost/bottom.htm, then you can have javascript acting from one frame to the other. If the pages are on different servers, eg. the bottom frame is on www.xyz.com, then you won't be able to use Javascipt on it. In short, if you don't launch your index /frameset page from http://localhost:8080, then it won't work regards, Elie
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