Re: how do you replace white space in a string with a %20 jsp?

From:

"Rhino" <no.offline.contact.please@nospam.com>

Newsgroups:

comp.lang.java.help

Date:

Tue, 30 May 2006 23:36:40 -0400

Message-ID:

<4b8fg.970$Su3.90287@news20.bellglobal.com>

"Kaitee" <computerkaitee@yahoo.com> wrote in message
news:1149038683.920464.234420@y43g2000cwc.googlegroups.com...

Hi, I need to replace spaces in filenames with %20 in a jsp page.
These file names are represented as strings in a database. I've tried
the following code and I am getting an out of memory error when I try
to run my page. I think it's the whitespace needs to be represented
some other way but I don't know what that would be.

   attach1 = (STO_attachset.getObject("attach1").toString().trim());
   StringBuffer ValueSB = new StringBuffer(attach1);
       if(attach1.indexOf(" ") !=-1) {
for(int e=0; e<ValueSB.length(); e++) {
     if(ValueSB.charAt(e)==' ') {
          ValueSB.insert(e,"%20");
          e++;
     }
}
       }
       attach1=ValueSB.toString();

You may want to look at the URLDecoder and URLEncoder classes within the
standard API.

I think you'll find that this fragment will illustrate a solution to your
problem. I found this technique on one of the comp.lang.java.* newsgroups
several years ago and it has served me well since then:

URL aboutIconUrl =
this.getClass().getClassLoader().getResource(ABOUT_ICON_FILE_NAME);
String encodedAboutIconFileName = aboutIconUrl.getFile(); //convert URL to
encoded String
String decodedAboutIconFileName = null;
try {
  decodedAboutIconFileName = URLDecoder.decode(encodedAboutIconFileName,
"UTF-8");
  }
catch (UnsupportedEncodingException ue_excp) {
  String msg = "Failed to decode file name " + encodedAboutIconFileName + ".
Cannot continue.";
  System.err.println(CLASS_NAME + "." + METHOD_NAME + " - " + msg);
  System.exit(16);
  }
aboutIcon = new ImageIcon(decodedAboutIconFileName);

--
Rhino