URL Encode and Decode Special character in Java

Question

In Java, I need to use HTTP Post to send request to server, but if in the parameter of the URL contains some special character it throws below Exception

Answer 1

To encode text for safe passage through the internets:

import java.net.*;
...
try {
    encodedValue= URLEncoder.encode(rawValue, "UTF-8");
} catch (UnsupportedEncodingException uee) { }

And to decode:

try {
    decodedValue = URLDecoder.decode(rawValue, "UTF-8");
} catch (UnsupportedEncodingException uee) { }