how to remove java.net.URI syntax exception

Question

I am using the following code to show NSE indices in default browser.

String downloadURL = "http://in.finance.yahoo.com/q;_ylt=AkieA" +
   "_4_rXXRBh2SH7_U3kXyULlG;_ylu=X3oDMTE1Nmc5cjBnBHBvcwMyBHNlY" +
   "wNmb290ZXIteWZpbmFuY2UEc2xrA25pZnR5NTA-?s=^NSEI";
java.awt.Desktop myNewBrowserDesktop = java.awt.Desktop.getDesktop();
java.net.URI myNewLocation = new java.net.URI(downloadURL);
myNewBrowserDesktop.browse(myNewLocation);

The URL in mention has been copied from yahoo site itself. However, when i run the code , i get error like:

java.net.URISyntaxException: Illegal character in query at index 140: http://in.finance.yahoo.com/q;_ylt=AkieA_4_rXXRBh2SH7_U3kXyULlG;_ylu=X3oDMTE1Nmc5cjBnBHBvcwMyBHNlYwNmb290ZXIteWZpbmFuY2UEc2xrA25pZnR5NTA-?s=^NSEI

I dont know what is wrong ; i have done the same with other URLs with success. Please help.

I changed my URL to in.finance.yahoo.com/q?s=^NSEI . Still, it shows Error. So , i removed ^ from the query. It works, but i dont get the page i want. isnt ^ allowed in URL in java — CyprUS
– CyprUS, Commented Mar 24, 2011 at 6:53
For general solution have a look at stackoverflow.com/questions/749709/… — Grigory Kislin
– Grigory Kislin, Commented Mar 22, 2013 at 12:51
For a more general solution have a look at stackoverflow.com/a/20874602/205607 ;-) — smola
– smola, Commented Jan 2, 2014 at 0:07

Favonius · Accepted Answer · 2011-03-24 07:22:55Z

5

As per this link:

http://www.blooberry.com/indexdot/html/topics/urlencoding.htm the Caret ("^") comes under unsafe category.

"Unsafe characters" Why: Some characters present the possibility of being misunderstood within URLs for various reasons. These characters should also always be encoded.

After changing the ^ to %5E it works.

Now if you copy the url from your browser and put it in another browser then it will work. I think the browser internally takes care of the special characters. But in java the java.net.URL is supposed to work with standalone and console applications and as well on different platforms, therefore, it is the responsibility of the developer to take care of encoding special characters.

Google for java based URL encoders.

edited Mar 24, 2011 at 7:22

answered Mar 24, 2011 at 7:16

Favonius

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MarcoS · Accepted Answer · 2011-03-24 07:34:11Z

0

I think you should URL-encode your string:

URI myNewLocation = new URI(URLEncoder.encode(downloadURL, "UTF-8"));

answered Mar 24, 2011 at 7:34

MarcoS

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