How to detect the web page is available or not?????
Posted on 2002-06-10
Here I have a question about java. Fot the program to open an web page, before is open it, it must chekc the page can be opened ot not. I use getContentLength() to get the size, if it is < 0 then treat it as unrreachable, otherwise use .showdocument (url,) to open it. It work in the case of the auto directed program and the destination page at the same server. If ther are in different sever, it return size <0 but the ppage is available. Can anybody give idea why it like this.
Or maybe there has other way to do it???
Millions of thanks in advance!!